Comprehensive Experiment on Polarization of Light and Crystal Optics Fundamentals

Comprehensive Experiment on Polarization of Light and Crystal Optics Fundamentals

The polarization of light and the basis of crystal optics are important knowledge points in physical optics. This experiment focuses on the transverse wave properties of light, studying the propagation characteristics of light in crystals and the effect of polarizing elements on light. The experimental content is comprehensive, and the knowledge framework is gradually deepened, mainly including the generation and verification of polarized light, the conversion of different polarized light, Jones matrix, and the interference and application of different polarized light. Through the construction and testing of experimental phenomena, the obscure and abstract principles in the original teaching were intuitively demonstrated. At the same time, the polarization knowledge points and industry applications were deepened and improved, filling the gaps in the original experimental teaching. It is an excellent experimental platform for interpreting the knowledge points of physics and optoelectronics related professional courses

Experimental content:

1. The generation of linear polarization and the verification experiment of Marius' law;
2. Fast and slow axis calibration experiment of waveplate;
3. Experiment on the generation and inspection of polarized light;
4. Experiment on mutual conversion of different polarized light;
5. The Representation and Calculation Experiment of Jones Matrix;
6. Crystal birefringence and angle measurement experiment;
7. Real time testing experiment of polarization polar coordinates; (Type B)
8. Interference experiment between linearly polarized light and linearly polarized light; (Type B)
9. Interference experiment of co rotating circularly polarized light; (Type B)
10. Interference experiments with different circularly polarized light rotations; (Type B)
11. Polarization interference measurement of wave plate delay experiment. (Type B)

Optional equipment parameters

Computer (Basic Configuration)

Main equipment parameters

1. Light source components:

Fiber coupled laser: 650nm, P>1.5mW, single-mode fiber, core diameter 4 μ m, TEM 00, 3mm PVC fiber protective cover, fiber connector FC/PC, fiber length 50cm.
2. Optical components:
Variable lens: Φ 40mm, f=150mm, smoothness level III; Spectral prism: 25.4mm * 25.4mm * 25.4mm, AR@400 ~700nm;
Attenuation film: transmittance T=0.2-10%; Narrowband filter: half wave width of 50nm; reinforced aluminum reflector: Φ 40mm;
3. Programmable power meter:
Programmable power meter: The display screen shows the measurement wavelength, automatic/manual range mode, attenuation window status, and current power measurement gear; Measurement accuracy of 0.1uW, resolution of 0.1uW, supporting six range measurement; Measurement wavelength range of 200nm-1100nm, power measurement range of 0-40mW (bare detector)/0-2W (attenuation window); Provide real-time power display, long-term power detection, and display the measurement duration and power change curve within the measurement time. Provide maximum and minimum value display, and export Excel data; USB 2.0 operation communication interface.
4. Functional modules of experimental software:
The software consists of six modules, namely the generation of linear polarization and the verification module of Marius' law; Experimental module for the generation and verification of polarized light; Experimental module for mutual conversion of different polarized light; Real time testing experimental module for polarization polar coordinates; Polarized light interference experimental module; And the experimental module for measuring wave plate delay using polarized light interferometry.
5. Electric control turntable: (Type B)
5-1 Rotary table: Travel: 360 °, with a platform diameter of 60mm and a center hole diameter of 34mm. Transmission method: worm gear (reduction ratio of 1/180), maximum speed: 15 °/s, one-way positioning accuracy: 0.1 °, maximum load capacity: 3Kg.
5-2 Electronic Control Unit: Two phase stepper motor controller, maximum output frequency 5KHz, AC220V input, motion mode: switchable between continuous mode and single step mode, maximum driving current 3A, maximum fine fraction 64, communication mode USB to RS232, display mode: 2-line LCD, working environment temperature -10~+45 ℃, relative humidity 45~85% RH, with upper computer software and SDK.
6. COMS camera: (Type B)
CMOS camera: resolution 1280 × 1024, pixel size 5.2 μ m × 5.2 μ m, USB 2.0 interface.
7. Mechanical components:
Precision optical guide rail: L × W=1200mm × 90mm, equipped with slider, one-dimensional moving slider, adjustable support, and support rod;
High precision adjustment mirror frame; CCD variable attenuation aperture: C interface; Precision adjustment frame: adjust the alignment of semiconductor lasers
Lens; Two dimensional adjustable prism holder; Laser tube holder, adjustable in two-dimensional pitch, with a maximum clamping capacity of 50mm.
8. Experimental manual and warranty.