Physics Lab Equipment

LEOK-50 Information Optical Experiments with LC-SLM

LEOK-50 Information Optical Experiments with LC-SLM

Features

  • Open structure

  • Powerful software

  • Electro-optic effect of liquid crystal

  • Computed holography









Introduction

Liquid crystal (LC) is an organic polymer compound that may flow like a liquid, but the molecules may be aligned in a crystal-like orientation. When LC molecules are aligned, the material becomes optically anisotropic. A LC screen is a spatial light modulator (SLM) based on the electro-optic modulation property of the LC material. This type of modulator is electronically addressable so that both input and output signals of the device can be computer-controlled. A LC-SLM can be used for optical signal processing, such as computed holography. It is suitable for optical experiment education in opto-electronic information, physics and other related areas.


Using this kit, the following experiments can be conducted:


1. Electro-optic effect of liquid crystal

2. Microstructure measurement of an electronically addressable LC-SLM using diffraction theory

3. Optical interference and diffraction

4. Computed holography

5. Diffraction efficiency measurement of hologram

6. Verification of Fourier transform and holographic characteristics


Part List

ItemSpecificationsQty

SLM

Display type: transmissive LC

1

Resolution: 1024 x 768
Pixel pitch: 26 μm
Active area: 26.4 mm x 19.8 mm
Modulation mode: amplitude
Spectral range: 500 ~ 700 nm
Signal format: VGA ~ XGA
Frame rate: 60 Hz
SLM Driver
1
Semiconductor Laser with AC Adapter650 nm1 set
Polarizerdia 60 mm with rotation scale2
CCD Camera
1
Fourier Transform Lensdia 60 mm, f=300 mm1
B/W Monitor
1
Optical Power Meter with Detector
1 set
Optical Rail with Slides1.5 m in length1 set
Black Screen
1
VGA Splitter1 to 41
RS232 Cable9 pins1
Software CD
1

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Schematic of configuration


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