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Summary of Contents for Newport ORIEL Instruments Cornerstone 260
- Page 1 (217) 352-9330 | Click HERE Find the Newport / Oriel 74125 at our website:...
- Page 2 Cornerstone™ 260 1/4m Monochromator Family User's Manual Family of Brands – ILX Lightwave • New Focus™ • Ophir • Corion • Richardson Gratings™ • Spectra-Physics ® ® ® MCS260, Rev A...
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Page 3: Table Of Contents
MCS260 CORNERSTONE 260 MONOCHROMATORS TABLE OF CONTENTS GENERAL INFORMATION ........................5 SYMBOLS AND DEFINITIONS ..................... 6 GENERAL WARNINGS ......................7 ELECTRICAL HAZARDS ....................... 7 MECHANICAL HANDLING ....................8 OPTICS CARE AND HANDLING ................... 8 INTRODUCTION ..........................9 OPTICAL CONFIGURATION ....................9 STRAY LIGHT REJECTION .................... - Page 4 19.4 GRATING DISPERSION ...................... 70 19.5 GRATING ILLUMINATION AND RESOLUTION..............70 WARRANTY AND SERVICE ......................71 20.1 CONTACTING NEWPORT CORPORATION ..............71 20.2 REQUEST FOR ASSISTANCE / SERVICE ................. 72 20.3 REPAIR SERVICE ....................... 72 20.4 NON-WARRANTY REPAIR ....................72 20.5 WARRANTY REPAIR ......................
- Page 5 MCS260 CORNERSTONE 260 MONOCHROMATORS LIST OF FIGURES Figure 1: Optical Configuration of the Cornerstone 260 ................9 Figure 2: Model Number Codes ......................... 10 Figure 3: Application Example: Quantum Efficiency Measurements ............11 Figure 4: Model 74104 Mounting Kit ......................13 Figure 5: Monochromator Connections ......................
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Page 6: General Information
MCS260 CORNERSTONE 260 MONOCHROMATORS 1 GENERAL INFORMATION ™ ® Thank you for your purchase of this Cornerstone 260 Monochromator from Oriel Instruments Please carefully read the following important safety precautions prior to unpacking and operating this equipment. In addition, please refer to the complete User’s Manual and all other documentation provided for additional important notes and cautionary statements regarding the use and operation of the system. -
Page 7: Symbols And Definitions
Hazard arising from dangerous voltage. Any mishandling could result in irreparable damage to the equipment, and personal injury or death. EUROPEAN UNION CE MARK The presence of the CE Mark on Newport Corporation equipment means that it has been designed, tested and certified as complying with... -
Page 8: General Warnings
Note: This instrument conforms to CE standards for both safety and EMC. During normal use, this equipment will not pose any electrical hazards to the user. Read all warnings before installing or operating this system. If there are any questions or concerns, contact Oriel Instruments or the regional sales representative for Newport. -
Page 9: Mechanical Handling
MCS260 CORNERSTONE 260 MONOCHROMATORS 1.4 MECHANICAL HANDLING Avoid dropping, sudden shocks, or rough handling of the monochromator since this may cause the system to lose its calibration and may destroy the high precision drive components or optics. 1.5 OPTICS CARE AND HANDLING Do not touch any optical surfaces since this is likely to cause irreparable damage. -
Page 10: Introduction
MCS260 CORNERSTONE 260 MONOCHROMATORS 2 INTRODUCTION The Oriel Cornerstone 260 is a high performance, economical and user-friendly monochromator – an ideal instrument for research and OEM applications. Each of these instruments includes up to three diffraction gratings, filter wheel control circuitry and an integrated electronic shutter. -
Page 11: Stray Light Rejection
MCS260 CORNERSTONE 260 MONOCHROMATORS 2.2 STRAY LIGHT REJECTION Stray light may have a variety of origins. Its presence may be caused by a wide variety of design and manufacturing factors. The level of stray light due to the dispersed radiation inside the monochromator is affected by the design of the instrument, its baffles and interior finish. -
Page 12: Typical Applications
MCS260 CORNERSTONE 260 MONOCHROMATORS 2.4 TYPICAL APPLICATIONS The applications for the Cornerstone 260 monochromator are practically limitless. Here we present one example: a quantum efficiency measurement system using an optically chopped light source used with a lock-in digital amplifier to extract small signal levels from background radiation. All components shown are available from Oriel Instruments. -
Page 13: Initial Setup
Inspect the shipping box for external signs of damage or mishandling. Inspect the contents for damage. If any item is missing or damaged, immediately contact Oriel Instruments or the Newport representative from whom the system was purchased. -
Page 14: Mounting Options
MCS260 CORNERSTONE 260 MONOCHROMATORS 3.4 MOUNTING OPTIONS The ability to mount the monochromator simplifies setup and alignment of the optical system. The mounting plate or kits also helps ensure consistent results over time, as the monochromator cannot be accidentally moved out of position. The following options are available for securing the Cornerstone 260: •... -
Page 15: Electrical And Computer Connections
Read all warnings before installing or operating this system. If there are any questions or concerns, contact Oriel Instruments or the regional sales representative for Newport. ELECTRICAL SHOCK Never attempt to open the lamp power supply or monochromator power adapter. -
Page 16: Figure 5: Monochromator Connections
MCS260 CORNERSTONE 260 MONOCHROMATORS Figure 5: Monochromator Connections The USB models of the Cornerstone 260 each include a USB 2.0 cable. A GPIB cable (model 70038) and RS232 cable (model 70040) are available from Oriel, and are sold separately. If using a commercially available USB/GPIB or USB/RS232 converter cable, the driver for this cable must be installed before communication to the monochromator can be established. -
Page 17: Shutter
MCS260 CORNERSTONE 260 MONOCHROMATORS 4 SHUTTER An electronic shutter is integrated into the Cornerstone monochromator’s design. It is mounted inside the housing at the input port. This shutter is normally closed. The shutter is used to close the light path when light is not required. This allows the light source to remain on, and therefore remain warmed up, so that it continues to provide stable performance. -
Page 18: Input And Output Slits
MCS260 CORNERSTONE 260 MONOCHROMATORS 5 INPUT AND OUTPUT SLITS To operate any monochromator, slits are required at the input and output port. The slits offered with the Cornerstone 260 all have 1.5-inch male flanges, allowing them to be easily connected to the wide variety of Oriel accessories and instruments. -
Page 19: Micrometer Adjustable Slits
MCS260 CORNERSTONE 260 MONOCHROMATORS 5.2 MICROMETER ADJUSTABLE SLITS Micrometer adjustable slit assemblies are continuously variable from fully closed to 3 mm width. A height adjustment slide allows variation in the height from 2 to 12 mm. Benefits of the micrometer adjustable slits are flexibility and high throughput. -
Page 20: Figure 11: Shortest Micrometer Adjustable Slit Height
MCS260 CORNERSTONE 260 MONOCHROMATORS The slit height is continuously adjustable. Pull the lever out for the shortest height. Push the slide in for the tallest height setting. Use a 10x multiplier to convert the micrometer reading to the actual slit opening size. example, turning the dial one full revolution starting from the fully closed position will give a reading of 50 on the micrometer. -
Page 21: Motorized Slits
MCS260 CORNERSTONE 260 MONOCHROMATORS 5.3 MOTORIZED SLITS A motorized slit assembly may be adjusted from 6 µm to 2 mm width in 6 µm steps. The slit width is controlled through the utility software, optional hand controller, optional TracQ Basic software or by using low level commands. -
Page 22: Diffraction Gratings
The Cornerstone 260 monochromators feature diffraction gratings produced by Richardson Gratings. Both Oriel Instruments and Richardson Gratings are part of the Newport family of brands, and have a long history of working together to design monochromators that are appropriate for a wide variety of applications. -
Page 23: Grating Types
MCS260 CORNERSTONE 260 MONOCHROMATORS 6.1 GRATING TYPES Ruled grating masters (also called interference gratings) are produced using a ruling engine with an extremely fine cutting tool. Holographic gratings are produced by recording interference fringes in photoresist. The different techniques cause some differences in performance. Holographic gratings are most frequently available at high groove densities due to manufacturing limitations inherent in the technology. -
Page 24: Grating Efficiency And Blazing
MCS260 CORNERSTONE 260 MONOCHROMATORS 6.2 GRATING EFFICIENCY AND BLAZING Efficiency and its variation with wavelength and spectral order are important characteristics of a diffraction grating. For a reflection grating, efficiency is defined as the energy flow (power) of monochromatic light diffracted into the order being measured, relative either to the energy flow of the incident light (absolute efficiency) or to the energy flow of specular reflection from a polished mirror substrate coated with the same material (relative efficiency). -
Page 25: Figure 17: Grating Efficiency Curves, High Resolution And Extended Range Models
MCS260 CORNERSTONE 260 MONOCHROMATORS Figure 17: Grating Efficiency Curves, High Resolution and Extended Range Models... -
Page 26: Figure 18: Grating Efficiency Curves, Uv-Vis And Vis-Nir Models
MCS260 CORNERSTONE 260 MONOCHROMATORS Figure 18: Grating Efficiency Curves, UV-VIS and VIS-NIR Models... -
Page 27: Polarization Effects
MCS260 CORNERSTONE 260 MONOCHROMATORS 6.3 POLARIZATION EFFECTS The diffraction efficiency from a grating usually depends on the polarization of the radiation incident on the grating. There can be significant differences between the efficiency for radiation with the electric field vector parallel to the grating grooves and radiation with the electric vector perpendicular to the grooves. -
Page 28: Monochromator Resolution
MCS260 CORNERSTONE 260 MONOCHROMATORS 7 MONOCHROMATOR RESOLUTION Gratings are available in various groove densities (i.e. lines/mm). Higher groove densities give higher reciprocal dispersion and therefore higher resolution. The monochromator bandpass with a 1200 lines/mm grating is half that of the same arrangement with a 600 lines/mm grating. Note that this simple relationship is not accurate for slit widths below 50 µm, as the optical aberrations begin to play a role in the bandpass and resolution. -
Page 29: Determining Resolution
Resolution is calculated for each grating at the grating's blaze wavelength, i.e. the wavelength with the greatest efficiency. Actual performance is determined by the monochromator wavelength accuracy, precision and calibration. Newport suggests having the monochromator recalibrated annually by a qualified service technician. - Page 30 MCS260 CORNERSTONE 260 MONOCHROMATORS Calculation of Resolution Based on Fixed Slit Selection Grating 1 Grating 2 Grating 3 Fixed Slit Slit Width High Resolution Extended Range Configuration 77222 10 µm* 0.03 nm 0.25 nm ** 0.06 nm 77220 25 µm* 0.08 nm 0.25 nm ** 0.16 nm...
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Page 31: Figure 20: Some Of The Fixed Slit Sizes Available
MCS260 CORNERSTONE 260 MONOCHROMATORS Calculation of Resolution Based on Fixed Slit Selection Grating 1 Grating 2 Grating 3 Fixed Slit Slit Width VIS-NIR Configuration 77222 10 µm* 0.13 nm 0.06 nm 0.13 nm 77220 25 µm* 0.32 nm 0.16 nm 0.32 nm 77219 50 µm*... -
Page 32: Getting Light Into A Monochromator
MCS260 CORNERSTONE 260 MONOCHROMATORS 8 GETTING LIGHT INTO A MONOCHROMATOR 8.1 ACCEPTANCE PYRAMID The figure below shows the optical path of the light input to the instrument. The monochromator has an acceptance pyramid, often described by an F/#. The position and dimensions of the internal optics determines the pyramid. -
Page 33: F Number Matching
MCS260 CORNERSTONE 260 MONOCHROMATORS 8.2 F NUMBER MATCHING The Cornerstone 260 monochromator is an F/3.9 instrument. Without matching the F/# of the incoming light beam, stray light increases and throughput of desired signal suffers. To illustrate this, the photos below show a fiber optic cable placed at the entrance of a monochromator. Fibers are typically F/2. -
Page 34: Blocking Higher Order Radiation
Erroneous measurements may be taken because what was thought to be a measurement with a single wavelength was actually a measurement using radiation at that wavelength – but contaminated with higher order radiation. Consider using Newport’s Colored-Glass Alternative Filters for blocking higher order diffraction. -
Page 35: Communication Methods
MCS260 CORNERSTONE 260 MONOCHROMATORS 10 COMMUNICATION METHODS In order to satisfy the needs of as many users as possible, the Cornerstone 260 is designed to be controlled from a variety of sources. The Cornerstone 260 is capable of automatically controlling an optional filter wheel, Model 74010 . It is also able to interface with the motorized filter wheel included with Oriel’s APEX2 light sources. -
Page 36: Utility Software
MCS260 CORNERSTONE 260 MONOCHROMATORS 10.1 UTILITY SOFTWARE LabVIEW-based utility software is included at no extra cost with all Cornerstone models to control both the monochromator and filter wheel accessory. The utility software provided with the monochromator includes USB drivers for Windows 7 32-bit and 64-bit operating systems. The software can also control the instrument through an RS232 or GPIB connection. -
Page 37: Hand Controller
MCS260 CORNERSTONE 260 MONOCHROMATORS 10.2 HAND CONTROLLER The optional 74009 Hand Controller is designed specifically for use with Oriel’s Cornerstone series monochromators and MS260i spectrographs. It is very easy to set up – simply plug it into the instrument and it’s ready to go. There is no need to purchase a computer and set up the software. The Hand Controller is a very convenient option in locations where security is a concern, such as defense facilities and universities. -
Page 38: Tracq Basic Software
TracQ Basic is an application integrating Oriel monochromators with various detection instruments, such as the Newport Optical Power and Energy Meters, 1918-R, 1936-R and 2936-R, plus Oriel’s LIDA-SRS-KIT. Software prompts guide users through the measurement process. -
Page 39: Low-Level Commands
MCS260 CORNERSTONE 260 MONOCHROMATORS 10.4 LOW-LEVEL COMMANDS An intuitive command set is provided for those wishing to create their own programming. A list of these commands is provided in the user’s manual included with the monochromator. Commands are simple to use. For example, to query the wavelength, enter “WAVE?” The command to close the shutter is “SHUTTER C”. -
Page 40: Grating Installation And Calibration
MCS260 CORNERSTONE 260 MONOCHROMATORS 11 GRATING INSTALLATION AND CALIBRATION Grating installation and field calibration are typically performed at one of Newport’s manufacturing location, or by qualified field service personnel. The instructions provided in this section are for advanced users only. -
Page 41: Determining The Grating Calibration Factor
MCS260 CORNERSTONE 260 MONOCHROMATORS 11.3 DETERMINING THE GRATING CALIBRATION FACTOR The following procedure allows advanced users to perform a two-point grating calibration. Procedure: 1. Select a radiation source that has at least two narrow spectral lines in the wavelength region of interest. -
Page 42: Grating Installation
MCS260 CORNERSTONE 260 MONOCHROMATORS 11.4 GRATING INSTALLATION Each grating comes mounted and aligned on a grating mount. For most applications, there is no need to adjust this grating holder. Refer to the general warnings and precautions section of this manual regarding the care and handling of diffraction gratings. Note that only one grating should be replaced at a time. -
Page 43: Figure 30: Grating Platform Without Gratings
MCS260 CORNERSTONE 260 MONOCHROMATORS Figure 30: Grating Platform Without Gratings Figure 31: Grating Platform With Three Gratings Installed... -
Page 44: Troubleshooting
Cornerstone monochromator. If the tips in this section do not restore the instrument to working condition, contact Newport to arrange for technical support or repair. Contact information can be found in the Warranty and Service section of this user’s manual. -
Page 45: Grating Turret Position Error
MCS260 CORNERSTONE 260 MONOCHROMATORS 12.2 GRATING TURRET POSITION ERROR The photo below shows the inside of a Cornerstone 260 monochromator. Normally two or three gratings are mounted on the rotating turret. They are not shown in the photo for clarity. The instrument senses the turret’s angle of rotation based on a sensor. -
Page 46: Specifications
MCS260 CORNERSTONE 260 MONOCHROMATORS 13 SPECIFICATIONS General Specifications Focal Length 260 mm F/3.9 Wavelength Selection Motorized Usable Wavelength Range 180 to 2500 nm, grating dependent Spectral Resolution Grating dispersion and slit width dependent Wavelength Accuracy 0.35 nm Wavelength Precision 0.08 nm Maximum Slew Rate 205 nm/s with 1200 line/mm grating Stray Light... -
Page 47: Dimensions
MCS260 CORNERSTONE 260 MONOCHROMATORS 14 DIMENSIONS Figure 34: Cornerstone 260 Dimensions... -
Page 48: Figure 35: Micrometer Adjustable Slit Dimensions
MCS260 CORNERSTONE 260 MONOCHROMATORS Figure 35: Micrometer Adjustable Slit Dimensions Figure 36: Model 74104 Mounting Kit... -
Page 49: Eu Declaration Of Conformity
Year mark affixed: 2015 Type of Equipment: Electrical equipment for measurement, control and laboratory use in industrial locations. Manufacturer: Newport Corporation 1791 Deere Avenue Irvine, CA 92606 Standards Applied: Compliance was demonstrated to the following standards to the extent applicable: BS EN61326-1: 2013 “Electrical equipment for measurement, control and laboratory... -
Page 50: Appendix I: Low Level Commands And Queries
MCS260 CORNERSTONE 260 MONOCHROMATORS 16 APPENDIX I: LOW LEVEL COMMANDS AND QUERIES 16.1 OPENING LOW LEVEL COMMUNICATION INTERFACE Commands and Queries may be sent using Oriel’s MonoTerm software, HyperTerminal or other similar terminal emulation programs. Settings are as follows: Baud Rate: 9600 Data Bits: Parity:... -
Page 51: Standard Mode
MCS260 CORNERSTONE 260 MONOCHROMATORS 16.3 STANDARD MODE Most normal communication with the Cornerstone, especially communication handled inside closed application software, is done in Standard Mode. This mode follows all of the rules on the previous page, plus there are some additional features for error handling. The Cornerstone stores errors internally in a status byte and an error byte, where each bit has a specific meaning. -
Page 52: Handshake Mode
MCS260 CORNERSTONE 260 MONOCHROMATORS 16.4 HANDSHAKE MODE This communications mode is most useful for methods development, troubleshooting or in the early stages of programming. Use the command: “HANDSHAKE 1[lf]” to put Cornerstone into Handshake Mode. This mode follows the command syntax listed in this manual, but in addition, every Statement is acknowledged. -
Page 53: Command Reference Summary
MCS260 CORNERSTONE 260 MONOCHROMATORS 16.5 COMMAND REFERENCE SUMMARY Command Query Hand Controller Key ABORT [ABORT] ADDRESS XX ADDRESS? BANDPASS XXX.XX BANDPASS? [SHIFT 1] CALIBRATE XXX.XXX [CALIB] ERROR? FILTER X FILTER? [FILTER] FILTER1LABEL TTTTTTTT FILTER1LABEL? [SHIFT LABEL] GOWAVE XXX.XXX WAVE? [GO WAVE] GRAT X GRAT? [GRAT]... -
Page 54: Detailed Command Reference
MCS260 CORNERSTONE 260 MONOCHROMATORS 16.6 DETAILED COMMAND REFERENCE This section describes the exact syntax, acceptable parameters, and functionality for every Cornerstone 260 Command. For each corresponding Query, in braces { }, type of Response expected is also listed. Where appropriate, the corresponding Hand Controller key, in brackets [ ], is also listed. - Page 55 Lines/mm is usually changed only when installing a new grating, and in that case, the parameter should match the value provided by Newport. Note, the Hand Controller only changes the current grating parameters. GRAT2LINES XXXX...
- Page 56 Warning: this value is used to calculate wavelength motion. Offset is usually changed only when installing a new grating, and in that case, the parameter should match the value provided by Newport. This value is automatically changed via the CALIBRATE command. A calibration procedure is outlined in this user’s manual.
- Page 57 MCS260 CORNERSTONE 260 MONOCHROMATORS Cornerstone Accessory Commands SHUTTER T {SHUTTER?} [SHUTTER] Closes or opens the shutter depending upon the single letter mnemonic parameter (T). Closing the shutter requires "C", whereas opening it requires "O". The response to SHUTTER? is simply the one character parameter describing the current state.
- Page 58 MCS260 CORNERSTONE 260 MONOCHROMATORS Cornerstone System Commands {INFO?} [LOCAL] Query for basic instrument information. Generates the same response as the GPIB specific *IDN? That response is “Oriel, Model 74100 Cornerstone 260,SNXXX,VYY.YY.YY” where XXX is the unit's serial number and YY.YY.YY is the version number for internal firmware. This information is displayed for 3 seconds when [LOCAL] is pressed on the Hand Controller.
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Page 59: Error Codes For Low Level Commands
MCS260 CORNERSTONE 260 MONOCHROMATORS 16.7 ERROR CODES FOR LOW LEVEL COMMANDS Cornerstone errors are stored internally in the Status byte and Error code. The Status byte is usually empty (decimal value 0) but if an error condition occurs, bit 5 of the Status byte will be set (decimal value 32). -
Page 60: Appendix Ii: Hand Controller Commands
MCS260 CORNERSTONE 260 MONOCHROMATORS 17 APPENDIX II: HAND CONTROLLER COMMANDS The optional 74009 Hand Controller is designed specifically for use with Oriel’s Cornerstone series monochromators and MS260i spectrographs. It is very easy to set up – simply plug it into the instrument and it’s ready to go. -
Page 61: Key Reference
This key (located directly above GRAT) provides access to the grating label. The label is an eight character alpha-numeric field that is used for information only. Newport puts the grating blaze wavelength as the label during calibration. However, you can use the keypad to type any number, then press ENTER to accept that new value. - Page 62 MCS260 CORNERSTONE 260 MONOCHROMATORS SHIFT PORT To change the port, press this key. Followed by either 1 or 2 and then press ENTER. The number 1 corresponds to the axial port and the number 2 corresponds to the lateral output port. FILTER Move the 74010 Filter Wheel accessory to the specified position.
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Page 63: Appendix Iii: Usb Dll
MCS260 CORNERSTONE 260 MONOCHROMATORS 18 APPENDIX III: USB DLL The Cornerstone USB DLL “Cornerstone.dll” is located in the C:\Program Files\Newport\Mono Utility x.x.x\Cornerstone DLL directory, with “x.x.x” indicating the revision level of the software. The following DLLs are provided: Cornerstone.dll CyUSB.dll This section details how to interface with the instrument from either C#.NET or C++. -
Page 64: C# Users
MCS260 CORNERSTONE 260 MONOCHROMATORS 18.3 C# USERS This demonstrates how to call the DLL in C# .NET. Below the code is how to add a DLL Reference to a .NET project. Summary: 1. Add Code Reference to both the Cornerstone DLL and the CyUSB (Cypress) DLL 2. - Page 65 MCS260 CORNERSTONE 260 MONOCHROMATORS USBEventArgs usbEvent = e as USBEventArgs; cs.disconnect(); void usbDevices_DeviceAttached(object sender, EventArgs e) USBEventArgs usbEvent = e as USBEventArgs; cs.connect(); connect(); void connect() cornerstone = cs.device; usbDevices = cs.usbDevices; deviceCount = usbDevices.Count; void toggleButtons(Boolean toggle) btnResponse.Enabled = toggle; btnSend.Enabled = toggle;...
- Page 66 MCS260 CORNERSTONE 260 MONOCHROMATORS txtInfo.Text = cs.getLastMessage(); cs.setActiveDevice(nActiveUnit); private void btnResponse2_Click(object sender, EventArgs e) cs.setActiveDevice(cs.usbDevices.Count); txtInfo.Text = cs.getResponse(); cs.setActiveDevice(nActiveUnit);...
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Page 67: C++ Users
MCS260 CORNERSTONE 260 MONOCHROMATORS 18.4 C++ USERS Oriel_USB.h file provides a COriel_USB class that links DLL functions to connect and control the Cornerstone. Reminder: Verify the DLL is in the same folder or in command path of executable before running. Summary: Add Oriel_USB.h, Cornerstone.dll and CyUSB.dll to project Add Oriel_USB.h to #include in header file of project. -
Page 68: Appendix Iv: Grating Physics Tutorial
MCS260 CORNERSTONE 260 MONOCHROMATORS 19 APPENDIX IV: GRATING PHYSICS TUTORIAL 19.1 THE GRATING EQUATION A typical diffraction grating consists of a substrate, usually of an “optical material”, with a large number of parallel grooves ruled or replicated in its surface and overcoated with a reflecting material such as aluminum. -
Page 69: The Grating Equation In Practice
MCS260 CORNERSTONE 260 MONOCHROMATORS 19.2 THE GRATING EQUATION IN PRACTICE When a parallel beam of monochromatic light is incident on a grating, the light is diffracted from the grating in directions corresponding to m = -2, -1, 0, 1, 2, 3, etc. When a parallel beam of polychromatic light is incident on a grating then the light is dispersed so that each wavelength satisfies the grating equation. -
Page 70: Grating Order
MCS260 CORNERSTONE 260 MONOCHROMATORS 19.3 GRATING ORDER It is important to note the sign of “m” is given by either form of the grating equation and can be positive or negative. In a monochromator, the angles I and D are determined by the rotational position of the grating. -
Page 71: Grating Dispersion
MCS260 CORNERSTONE 260 MONOCHROMATORS 19.4 GRATING DISPERSION If we fix the angle I in the grating equation and differentiate with respect to wavelength we get: a x cos D x δD = m x δλ Thus: δD/δλ is the angular dispersion or change of diffraction angle corresponding to a small change in wavelength. -
Page 72: Warranty And Service
Oriel Instruments belongs to Newport Corporation's family of brands. Thanks to a steadfast commitment to quality, innovation, hard work and customer care, Newport is trusted the world over as the complete source for all photonics and laser technology and equipment. -
Page 73: Request For Assistance / Service
Newport's discretion. Newport is not responsible for damage occurring in transit. The Owner of the product bears all risk of loss or damage to the returned Products until delivery at Newport’s facility. Newport is not responsible for product damage once it has left the facility after repair or replacement has been completed. -
Page 74: Warranty Repair
Except as otherwise expressly stated in Newport’s quote or in the current operating manual or other written guarantee for any of the Products, Newport warrants that, for the period of time set forth below with respect to each Product or component type (the "Warranty Period"), the Products sold hereunder will be free from defects in material and workmanship, and will conform to the applicable specifications, under normal use and service when correctly installed and maintained. -
Page 75: Loaner / Demo Material
The Newport programs and all materials furnished or produced in connection with them ("Related Materials") contain trade secrets of Newport and are for use only in the manner expressly permitted. Newport claims and reserves all rights and benefits afforded under law in the Programs provided by Newport Corporation.
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