Related Manuals for NIREOS GEMINI 2D
Summary of Contents for NIREOS GEMINI 2D
- Page 1 USER TECHNICAL MANUAL NIREOS SRL Via Giovanni Durando, 39 - 20158 Milan (Italy) info@nireos.com | www.nireos.com...
- Page 2 NIREOS | GEMINI 2D INTERFEROMETER | USER TECHNICAL MANUAL 2.2-A Subject to change without notice Document Version: 2.2-A 13/12/2019 P a g e...
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Page 3: Table Of Contents
NIREOS | GEMINI 2D INTERFEROMETER | USER TECHNICAL MANUAL 2.2-A Contents Introduction ............................ 3 Brief Description ........................3 Information, Warnings and Safety Instructions ............... 3 1.2.1 Hazardous Voltage......................3 1.2.2 Unpacking ........................4 1.2.3 Laser safety ........................4 1.2.4 Installation Instructions ....................4 1.2.5... -
Page 4: Introduction
, the absolute arrival time of one of the two replicas is kept fixed. The GEMINI 2D Interferometer is thus the ideal device for generating a pair of replicas (i.e. controlling the state of polarization) of the incoming light with interferometric stability. -
Page 5: Unpacking
In case of any damage, contact NIREOS for replacement. Please save all packing materials in case you would like to transport or ship the product again. -
Page 6: Setup And Adjustments
2.1.2 Mechanical Mounting If needed, there are 4 threaded holes (M6 threads) to screw 4 posts to the GEMINI 2D Interferometer, that can be thus clamped and locked on an optical table. For more details regarding the position of the threaded holes, please go to Section 3.3 “Mechanical Drawings”. -
Page 7: Optical Alignment
• POLARIZATION The first optical element of the GEMINI 2D Interferometer is a polarizer (P1) mounted on a rotation mount that can be rotated by the user. It is recommended to make sure that the first polarizer is oriented at ±45° and to enter the device with a beam linearly polarized at ±45°, to maximize the light throughput. -
Page 8: Optical Features
2.1.4 Optical Features • RELATIVE DELAY T Depending on your version of the GEMINI 2D Interferometer, the relative delay T can be: Symmetric (“SYM”). The moving replica is scanned in time in a symmetric way around the “TIME ZERO” with respect to the fixed replica. The delay T can be varied from –T... - Page 9 There are 3 different ways to properly find the correct T To do that, always enter the GEMINI 2D Interferometer with a broadband light (coherent or incoherent) and be sure that the two output replicas have parallel polarization at ±45°.
- Page 10 NIREOS | GEMINI 2D INTERFEROMETER | USER TECHNICAL MANUAL 2.2-A • Using a photodiode Measure the light exiting the GEMINI 2D with a single-pixel photodiode while scanning the delay T via software (the delay can be controlled by moving the motorized positioner by a few millimetres).
- Page 11 • DISPERSION Control The dispersion introduced by the GEMINI 2D Interferometer can be finely and continuously adjusted by rotating the control “DISPERSION” with a screwdriver (see the Figure 8). By rotating in the direction of the + (-), you increase (decrease) the positive dispersion.
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Page 12: Software
INSTALLING MCS SOFTWARE In the NIREOS pen drive you will find a link with all the software needed to use the Controller Module and to develop your own software. Run the installer MCS_Installer in the MCS folder. In the installation you must first select the software folder where most of the files will be installed (default: C:\SmarAct). -
Page 13: Software Examples
The installer creates shortcuts to programs and documents in the Start menu. 2.2.2 Software Examples In the NIREOS pen drive you will find a link to useful software examples written in LabView. For more details, please read the “COMPLETE OPERATIONAL EXAMPLE (LABVIEW AND NI-DAQ)” manual. -
Page 14: Appendix
NIREOS | GEMINI 2D INTERFEROMETER | USER TECHNICAL MANUAL 2.2-A 3. Appendix 3.1 Technical Data VERSION Spectral range [nm] 300 - 3500 ± 400 ± 700 ± 1050 Max. Delay T [fs @ λ=600 nm] -100 → 700 -100 → 1300 -100 →... -
Page 15: Available Versions And Descriptions
• Keep the absolute arrival time of one of the two replicas fixed during a scan of the delay NOTE: NIREOS also produces a simpler version of interferometer (GEMINI Interferometer), which is suitable for those cases where the control on dispersion and on the absolute arrival time are not an issue (for example, for time-resolved measurements in which the interferometer is placed after the sample or for steady-state measurements). -
Page 16: Mechanical Drawings
NIREOS | GEMINI 2D INTERFEROMETER | USER TECHNICAL MANUAL 2.2-A 3.3 Mechanical Drawings Units: mm GEMINI 2D Interferometer NIREOS 15 | P a g e... - Page 17 NIREOS | GEMINI 2D INTERFEROMETER | USER TECHNICAL MANUAL 2.2-A 16 | P a g e...