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THORLABS RASP1 User Manual

Raman spectroscopy systems
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RASP1 & RASP2
Raman Spectroscopy Systems
User Guide
2023

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  • Page 1 RASP1 & RASP2 Raman Spectroscopy Systems User Guide 2023...
  • Page 2 Version: Date: 20-Jul-2023 Copyright © 2023 Thorlabs...

  • Page 3: Table Of Contents

    RASP1, RASP2 Raman Spectroscopy Systems Table of Contents Chapter 1 Safety Chapter 2 Introduction Intended Use of the Instrument Ordering Codes and Accessories Requirements Chapter 3 Getting Started Parts List Operating Elements Software Installation Setup Chapter 4 Hardware Operation Status LEDs Sample Positioning 4.2.1...
  • Page 4 RASP1, RASP2 Raman Spectroscopy Systems Project and Template Search History Manage Libraries 5.9.1 Example Raman Library 5.9.2 Library Creation 5.9.3 Library Editing 5.9.4 Library Export-Import Chapter 6 Operating Principle Excitation and Detection Volume Coded-Aperture Raman Spectroscopy 6.2.1 Laser Wavelength and Raman Spectroscopy...

  • Page 5: Safety

    If necessary, ask for replacement packaging. Refer servicing to qualified personnel! Changes to this device cannot be made nor may components not supplied by Thorlabs be used without written consent from Thorlabs. Attention...
  • Page 6 Thorlabs (party responsible for compliance) could void the user’s authority to operate the equipment. Thorlabs is not responsible for any radio television interference caused by modifications of this equip- ment or the substitution or attachment of connecting cables and equipment other than those specified by Thorlabs.

  • Page 7: Introduction

    Raman accessory kit (available separately) provides fused silica sample containers (a glass plate, a slide, a petri dish, vials, and a cuvette) and an adapter to secure them in the RASP1 and RASP2 spectrometers. The containers can also be purchased separately.

  • Page 8: Intended Use Of The Instrument

    Thorlabs. Regarding the manual: The contents of this document are valid at the time of issue, but Thorlabs reserves the right to change the contents and specifications without prior notice.
  • Page 9 Polystyrene Calibration Block, 12.5 mm x 12.5 mm x 47.0 mm RASPA1 Sample Accessories for RASP1 and RASP2: · Sample Positioner: Adapter for RASP1 and RASP2 to Position Samples and Sample Holders · Sample Funnel Insert for Small Solid Samples ·...

  • Page 10: Requirements

    Chapter 2 Introduction 2.3 Requirements These are the requirements for the PC intended to be used for remote operation of the RASP1 or RASP2 Raman spectrometers with the ThorRaman software. Please find the ThorRaman software package for download on the RASP1 and RASP2 website.

  • Page 11: Getting Started

    If the shipping container appears to be damaged, keep it until you have inspected the contents for completeness and tested the RASP1 and RASP2 mechanically and electrically. Verify that you have received the following items within the package: RASP1 or RASP2 1.

  • Page 12: Operating Elements

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 3 Getting Started 3.2 Operating Elements The RASP1 and RASP2 outer dimensions and visible features are identical. Therefore, only RASP2 is shown here. RASP2 Raman spectrometer RASP2 with open sample compartment Page 8 MTN032926-D02...

  • Page 13: Software Installation

    Chapter 3 Getting Started RASP2 Left Side RASPA1 Accessory Kit 3.3 Software Installation The ThorRaman Software, which supports the RASP1 and RASP2 spectrometers, can be downloaded through the Software tab on the RASP1 and RASP2 spectrometer product page. Please check for updates to the ThorRaman Software regularly and always use the latest software ver- sion.

  • Page 14: Setup

    Use only the supplied (USB 3.0) cable. USB 2.0 or USB 1.1 cables can not be used! Please make sure that the USB cable is connected to a USB 3.0 port, otherwise the RASP1 and RASP2 will not be recog- nized correctly.

  • Page 15: Hardware Operation

    Do not tamper or interfere with the safety interlock. Any changes to the interlock may result in bodily harm. The lasers inside the RASP1 and RASP2 Raman Spectrometers are Laser Class 4. The RASP1 and RASP2 systems are Laser Class 1 because no light is emitted outside the sample chamber when the lid is closed and the interlock is functional.

  • Page 16: Status Leds

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation The lid may be detached. To do so, open the lid at a 45° angle and pull it forward at this 45° angle. This makes cleaning the compartment easier. Lid Detachment at an Angle of 45°...

  • Page 17: Sample Positioning

    For the RASP1 and RASP2 spectrometers, the sample is placed onto the sample window (see image be- low). If the sample is solid and in one piece, such as a pill, it can be placed directly onto the window. Al- ternatively, samples inside an appropriate container can be analyzed.

  • Page 18: No Container

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation Thorlabs Sample Carriers for Raman Spectroscopy and RASP1 and RASP2 Specific Adapter Thorlabs offers a variety of sample carriers and the RASPA1 accessory kit which includes carriers and carrier positioners. Containers are not included with the spectrometers but available individually or as part of the RASPA1 accessory kit.
  • Page 19 RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation Sample Compartment of the RASP2 System. Place the Sample on the Sample Window. Sample Compartment of the RASP2 System with the Mounted RASPA1 Sample Positioner. Place the Sample Directly on the Sample Window or Place the Sample Funnel Insert into the Round Cut-Out.

  • Page 20: Plastic Bag

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation 4.2.2 Plastic Bag Samples inside a plastic bag can be analyzed for their Raman spectrum with the RASP1 or RASP2 spec- trometers. Key points: · The material of the plastic bag needs to be transparent at the excitation and observation...

  • Page 21: Glass Plate

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation 4.2.3 Glass Plate Samples can be analyzed through the PLF1016 fused silica glass plate placed on the sample window. PLF1016 fused silica glass plate can be placed directly on the sample window or securely positioned onto the sample window with the help of the sample positioner for stability.

  • Page 22: Vial

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation 4.2.4 Vial Samples inside a fused silica glass vial can be analyzed for their Raman spectrum with the RASP1 or RASP2 spectrometers. VFS1512 VFS5021 fused silica vials can be securely placed onto the sample window with the help of the sample positioner for stability.

  • Page 23: Microscope Slide

    Sample Positioner Shown With and Oriented for 1.5 mL Vial 4.2.5 Microscope Slide Samples on a fused silica microscope slide can be analyzed for their Raman spectrum with the RASP1 and RASP2 systems. Place the MS10FS precision microscope slide onto the sample window directly or use the sample posi-...

  • Page 24: Cuvette

    4.2.6 Cuvette Liquid samples inside the 3500 mL macro Fluorescence synthetic quartz glass cuvette (replacement item # CV10Q35FEP) can be analyzed for their Raman spectrum with the RASP1 or RASP2 spectrometers by using the sample positioner. Please always use a synthetic quartz glass cuvette inserted into the cuvette holder shipped with the RASPA1 Raman accessory kit to properly position the cuvette.

  • Page 25: Tips And Tricks For Samples

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 4 Hardware Operation 4.2.7 Tips and Tricks for Samples This section lists aspects about the choice of sample container that will influence the Raman spectrum: 1. Any shape of plastic container may be used for the samples, provided its transparency and thickness allows a large portion of the detection volume to be within the sample.

  • Page 26: Software Operation

    5.1 Software Startup When a RASP1 or RASP2 spectrometer is connected and the software is started, the software will recog- nize the device and import the spectrometer data from the device EEPROM; this process may take up to two minutes in the first instance.
  • Page 27 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation ThorRaman Start Screen after Device Recognition Data import can be reloaded via the right side button. Also, the settings, as described in the chapter Settings below, can be accessed via the button "Settings".

  • Page 28: Procedure For Raman Spectrum Acquisition

    Steps of the "Adjust" procedure to determine the precise laser wavelength Unless otherwise indicated, the following information applies to RASP1 or RASP2 systems. The differ- ence is the RASP1 Raman spectrometers has one laser at 785 nm and the RASP2 Raman spectrometer has two lasers (680 nm and 7785 nm).
  • Page 29 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation 1. Place the supplied RPC Polystyrene chip on the sample window of the RASP1 or RASP2 spectromet- ers. 2. Select "Adjust" in the Top Menu (see below, marked by red frame).

  • Page 30: Wavelength Verification & System Performance Test

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation ThorRaman Interface during the Adjustment with the 785 nm Laser Active For RASP2: When adjusting the RASP2 spectrometer with the 785 nm and 680 nm lasers, the calibration screen will display both wavelength ranges.
  • Page 31 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation ThorRaman Interface after Successful Adjust Procedure Top Panel: During the adjustment, the top menu changes to the option to stop the measurement and to export the data after the measurement is finished.

  • Page 32: Export Calibration Report

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation 5.3.3 Export Calibration Report To export the calibration report (.pdf), resulting from the test after the adjust step, click on the icon "Export" in the top menu. Attention Please be aware that the spectrum of the integrated neon lamp used for the calibration may contain traces of argon and thus the respective spectral lines may appear.

  • Page 33: Calibrate

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Raman Spectrum of Neon Lamp with Trace Amounts of Argon Raman Spectrum of Neon Lamp with a Substantial Argon Component 5.4 Calibrate In order to receive meaningful Raman spectra, it is critical to verify that the precise wavelength is used in the software.
  • Page 34 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Calibration Steps 1. Place the supplied RPC Polystyrene chip on the sample window of the RASP1 or RASP2 spectro- meter. 2. Select "Calibrate" in the Top Menu (see below, marked by red frame).
  • Page 35 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation RASP2 (785 nm Laser and 680 nm Laser) Calibration Screen The result screen shows the following panels: Top Panel: During the calibration measurement, the top menu changes to the option to stop the meas- urement and to Export the data after the measurement is finished.

  • Page 36: Export Calibration Report

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation 2. Wavelength Dispersion and Resolution, which verifies the performance of the spectrometer us- ing the spectrum of the built in Neon lamp. When this step failed, please clean the Polystyrene chip and calibrate again.

  • Page 37: Settings

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation 5.5 Settings To get to the Setting menu, click the respective icon in the top menu (see below, marked with the red frame). The following interface appears: Settings Overview Interface You can now access the settings for Measurement, the Spectrometer or the Software.
  • Page 38 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Different pre-programmed templates are available within ThorRaman. The Default Project Tem- plate is ideal for most measurements. The chapter Project and Template provides more informa- tion. The following screen appears under Measurement Settings. In this screen, the user sets up the struc- ture for saving and analysis of the acquired Raman spectra with the choice of the library, the project and the template used within this project.

  • Page 39: Spectrometer Settings

    Polystyrene (Adjust/Calibration) and Acetaminophen (all measurements). Store Images from Spectrograph This saves .tif image files generated by the spectrograph. This is useful for diagnostics and not required during standard measurements. Please only activate this when in contact with Thorlabs for diagnostic reasons. Page 35 Rev: 1.1, 20-Jul-2023...

  • Page 40: Software Settings

    Path: C:\Users\username\AppData\Local Please do not change the file path. Measurement Logs Data Storage File path where Log Data are saved. Please change the file path only after contacting Thorlabs Technical Support. Path: C:\Users\username\AppData\Local... Quick Start of ThorRaman via System Tray after closing the Software This allows quick access for faster start up via the right side of the Windows®...
  • Page 41 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Performance Logs are: · Time stamps of algorithms on every data processing algorithm step · Traces of decisions made by algorithms. · Details on device connection: This provides information concerning at which point which port was defined.

  • Page 42: Library Settings

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Operator Name This is an optional annotation to set the name of the person operating the spectrometer. Use this in case the person operating the system is not the same as the person logged onto the PC.
  • Page 43 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation New Measurement 1. Please ensure that the instrument has been adjusted and calibrated. 2. Go to the Home display shown below. 3. Go to the tab Settings and configure the software according to your needs. Please make sure to...
  • Page 44 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Upon selecting the green Play button, the measurement starts. The following interface appears during the measurement: In this screen, the 785 nm laser of the RASP2 is active and the fingerprint spectrum is measured as indic- ated by the yellow icon.
  • Page 45 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation When the measurement is running, the laser status field in the lower right corner indicates which laser is active with the yellow exclamation mark in front of the active laser. The top menu gives the option to stop the measurement. When the measurement was stopped, it can be restarted from the beginning using the appearing Play button.
  • Page 46 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation ThorRaman Interface after a Measurement Plot Selection The measured spectrum (in red) and its decomposition, using the library previously selected in the measurement settings, will be shown in blue in the main graph window.
  • Page 47 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation The library spectra of the different recognized components can be added to the plot, as shown below for Paracetamol (selected in the panel above the plot). Switching to the composition spectrum will show the assignment of the measured peaks to the com-...
  • Page 48 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Saving a Measurement The measurement together with the analysis (comparison to the selected library) and annotations (meta information) can be saved to the history inside the ThorRaman software. To do so, click the save button in the lower right corner.

  • Page 49: Project And Template

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Data Export The measured Raman spectra can be exported into a .zip file with Bitmaps , all meta data, and .spf2x file and all additional information saved in .xml format. To do so, click the icon in for opening in ThorSpectra menu.
  • Page 50 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Default Template for New Projects The user has the choice between four default templates for new projects in the measurement settings: · Default Project Template: This is appropriate for most analytical measurements.
  • Page 51 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation · Multi-line text · Attachment: This provides the option to attach a variety of files, such as sample pictures, test proto- cols. Click "+: Add custom" to Add a New Annotation; A Panel Opens Below.
  • Page 52 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation After all annotations are filled, click save. With this the meta information is also saved to the project. Changing template annotations in the viewer Search History The user can change all annotations which are not marked "i" in the search history measurement viewer.

  • Page 53: Search History

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation 5.8 Search History Acquired Raman spectra can be reviewed in the interface Search History. For this, go to the home interface, and click the large icon "Search History". The following interface lists all measurements which were saved within the project selected in the field "Select Project"...
  • Page 54 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation results for the calibration (either from a calibration or the verification following the adjustment) and in the tab below, spectrometer data like temperature. Sample Measurement information When selecting a sample measurement, view different information in the top panel: ·...
  • Page 55 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Edit Annotations Select the Edit button on the bottom left corner to change annotations marked with a check or add new annotations. Annotations marked with an i can not be edited.
  • Page 56 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation To add a new annotations, select the + icon below the list of annotations: Fill the right panel with the information: Page 52 MTN032926-D02...

  • Page 57: Manage Libraries

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation The save the edited annotations in the lower left corner: 5.9 Manage Libraries Raman spectra libraries of known substances are required to identify substances inside the sample by comparison. The ThorRaman software provides an Example Raman Library with a number of known substance spec- tra.

  • Page 58: Example Raman Library

    New substances can be added to an existing ThorRaman custom library by acquisition of Raman spectra of the substance of choice in library-quality on the RASP1 or RASP2 instrument. Before adding new spectra to a library, please make sure an appropriate custom library already exists or create a custom library as described below.
  • Page 59 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Note Library-quality spectra can not be added to the Example Raman Library provided with the ThorRa- man Software. Custom Library File 1. In the software settings, activate Enable Editing of Raman Libraries. Normally, that feature should be disabled to prevent accidental modifications of libraries by inexperienced users.
  • Page 60 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation You can then save this new library file to be filled with library quality Raman spectra of substances of your choice. These spectra need to be acquired using the ThorRaman software.

  • Page 61: Library Editing

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation 5.9.3 Library Editing To edit a custom library such as adding new substances to the library, go to the Software Settings activate Enable Editing of Raman Libraries. Note Spectra cannot be added to the Example Raman Library. A new custom library needs to be gener- ated.
  • Page 62 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation With the + (New) button in the lower left corner, a library quality Raman spectrum can now be acquired for the substance of choice. Please place the substance of choice in an appropriate sample container onto the sample window. Be sure to use the best available quality of substance and container because the data base record should have the best quality possible to ensure proper recognition later on.
  • Page 63 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation There will be information indicating whether this new substance is sufficiently unique to the selected library. If it is not different enough from spectra already present within the library, ThorRaman will in- dicate so.

  • Page 64: Library Export-Import

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Note In case the calibration was not done previously, the ThorRaman will still save this library measurement to a library with the factory calibration. Please try to avoid this. Following approval, the new substance (here test3) will appear in the custom ThorRaman library (here custom 2): 5.9.4 Library Export-Import...
  • Page 65 RASP1, RASP2 Raman Spectroscopy Systems Chapter 5 Software Operation Import To import ThorRaman libraries, go to the software settings and enable editing of libraries, then go to the measurement settings interface and click import. Note Because Libraries not generated in ThorRaman can not be directly imported, please contact...

  • Page 66: Operating Principle

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 6 Operating Principle 6 Operating Principle Raman Spectroscopy Raman Spectroscopy is a well-established technique for the characterization of chemical substances in solid, powder, liquid, or gas forms. It is based on the detection and analysis of Raman scattered light emitted from a sample upon exposure to monochromatic light.

  • Page 67: Excitation And Detection Volume

    Chapter 6 Operating Principle 6.1 Excitation and Detection Volume The sketch below illustrates the optimal position of a sample on the RASP1 and RASP2 spectrometers. This optimal position is illustrated by the red ellipse. The collimated laser beam of 2-3 mm beam diameter (green arrow) generates the excitation volume and excites the sample (blue rectangle) at an angle with respect to the sample window.

  • Page 68: Coded-Aperture Raman Spectroscopy

    Chapter 6 Operating Principle 6.2 Coded-Aperture Raman Spectroscopy Thorlabs RASP1 and RASP2 Raman spectrometers are based on imaging spectrometers that feature a diffraction grating as the dispersive element. Traditional spectrographs of this design face a trade-off between the desired spectral resolution and the achievable light throughput. This is because the dis- persive element produces spectrally separable images of the same slit image.
  • Page 69 The RASP1 and RASP2 Raman spectrometers use the full sensor area of a 2D CMOS camera. This is an ad- vantage for the signal-to-noise ratio because each reconstructed spectrum data-point is the average of a large number of pixels.

  • Page 70: Laser Wavelength And Raman Spectroscopy

    This chapter explains why it is crucial to determine the precise wavelength of the used lasers as is done via the function Adjust in the RASP1 and RASP2 spectrometers. Raman spectra are typically reported in wavenumbers (cm ) with respect to a central laser excitation wavelength, rather than wavelength, as the wavenumber value is directly related to the energy differ- ence in the emitted photons due to the Raman effect.

  • Page 71: Acquisition Of Raman Spectra

    · The signal for Raman spectroscopy can be recorded only during the excitation of the sample with suf- ficiently high excitation power. The laser power in the RASP1 and RASP2 spectrometers is factory set and listed in the annotations in the software interface (estimated laser power).

  • Page 72: Analysis Of Raman Spectra

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 6 Operating Principle As described above, the Thorlabs RASP1 and RASP2 spectrometers feature a coded aperture including a large input window rather than a slit as in conventional systems. This allows more photons to be analyzed.
  • Page 73 RASP1, RASP2 Raman Spectroscopy Systems Chapter 6 Operating Principle in wavenumbers (cm , X-axis). This unit is, in contrast to the wavelength units, a scale proportional to energy. All Raman spectroscopy fingerprint libraries are defined in terms of Raman shift at a certain excitation wavelength, as the relative intensities of Raman peaks may also vary depending on the excitation wavelength range.

  • Page 74: Maintenance And Service

    Thorlabs for return instructions. Please gently clean the inside of the RASP1 and RASP2 sample compartment with a slightly wet cloth and, if necessary, a small amount of soap. Do not use excess amounts of liquid as it may contaminate the inside of the system.

  • Page 75: Specifications

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 8 Specifications 8 Specifications Item # RASP1 RASP2 Optical Specifications 785 nm +/- 0.5 nm (<0.2 nm) Laser Excitation Wavelength 785 nm +/- 0.5 nm (<0.2 nm) (Spectral Bandwidth) 680 nm +/- 0.5 nm (<0.2 nm)
  • Page 76 RASP1, RASP2 Raman Spectroscopy Systems Chapter 8 Specifications General Specifications Material of Sample Window Fused Silica, AR coated Power Supply DS12, 12V Interface to PC Hi-Speed USB 3.0 Dimensions (L x W x H) 296.7 mm x 190.2 mm x 127.7 mm (11.68'' x 7.49'' x 5.03 '') Mass 4.6 kg...

  • Page 77: Dimensions

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 8 Specifications 8.1 Dimensions RASP1 and RASP2 outer dimensions are identical. RASP1 is shown. Page 73 Rev: 1.1, 20-Jul-2023 © 2023 Thorlabs...

  • Page 78: Glossary

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 9 Glossary 9 Glossary Library: The library of known substances to compare to the measured spectrum in order to determine the sample components. The library can be the predefined library "Example Raman Library" or a...

  • Page 79: Certifications And Compliances

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 10 Certifications and Compliances 10 Certifications and Compliances Page 75 Rev: 1.1, 20-Jul-2023 © 2023 Thorlabs...

  • Page 80: Warranty And Rma Information

    11 Warranty and RMA Information Thorlabs warrants material and production of the RASP1 and RASP2 for a period of 24 months starting with the date of shipment in accordance with and subject to the terms and conditions set forth in Thor- labs’...

  • Page 81: Manufacturer Address

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 12 Manufacturer Address 12 Manufacturer Address Manufacturer Address Europe EU-Importer Address UK-Importer Address Thorlabs GmbH Thorlabs GmbH Thorlabs, LTD. Münchner Weg 1 Münchner Weg 1 204 Lancaster Way Business Park D-85232 Bergkirchen D-85232 Bergkirchen...

  • Page 82: Copyright And Exclusion Of Liability

    Chapter 13 Copyright and Exclusion of Liability 13 Copyright and Exclusion of Liability Thorlabs has taken every possible care in preparing this document. We however assume no liability for the content, completeness or quality of the information contained therein. The content of this docu- ment is regularly updated and adapted to reflect the current status of the product.

  • Page 83: Thorlabs Worldwide Contacts

    RASP1, RASP2 Raman Spectroscopy Systems Chapter 14 Thorlabs Worldwide Contacts 14 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up- to-date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc.

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