Physics Lab Equipment

LEOK-9 Interference, Diffraction-1.jpg

Schematic of a Mach-Zehnder interferometer


LEOK-9 Interference, Diffraction-2.jpg

Schematic of measuring the refractive index of air


LEOK-9 Interference, Diffraction-3.jpg

Fraunhofer diffraction of a single slit

LEOK-9 Interference, Diffraction-4.jpg

Fraunhofer diffraction of multiple slits


LEOK-9 Interference, Diffraction-5.jpg

Schematic of multi-slit diffraction


LEOK-9 Interference, Diffraction-6.jpg

Verification of Malus's Law

LEOK-9 Interference, Diffraction & Polarization Kit - Enhanced Model

LEOK-9 Interference, Diffraction & Polarization Kit - Enhanced Model

Note: stainless steel optical table or breadboard not provided

Features

  • Comprehensive experiments

  • Detailed instruction manual

  • Easy alignment and setup







Introduction

LEOK-9 is a comprehensive kit including a series of experiments in optical interference, diffraction and polarization. It is developed for general physics education at colleges and universities. It provides a complete set of optical and mechanical components (including light source), which can be conveniently constructed to implement various experiments. Through selecting and assembling individual components into complete experiment setups, students can enhance their experimental skills and problem solving ability. Using this system, the following experiment examples can be conducted:


Build Interferometers and Observe Interference Patterns

Construct a Michelson interferometer and measure the refractive index of air

Construct a Sagnac interferometer

Construct a Mach-Zehnder interferometer

 

Set Up Fraunhofer Diffraction and Measure Intensity Distribution

Fraunhofer diffraction through a Single Slit

Fraunhofer diffraction through a Multi-Slit Plate

Fraunhofer diffraction through a Single Circular Aperture

Fraunhofer diffraction through a Transmission Grating

 

Set Up Fresnel Diffraction and Measure Intensity Distribution

Fresnel diffraction through a Single Slit

Fresnel diffraction through a Multi-Slit Plate

Fresnel diffraction through a Circular Aperture

Fresnel diffraction past a Straight Edge

 

Measure and Analyze Polarization Status of Light Beams 
Brewster's angle measurement of a black glass
Verification of Malus's Law
Function study of a half-wave plate
Function study of a quarter-wave plate: circularly and elliptically polarized light


Part List

DescriptionSpecs/Part #Qty
He-Ne laserLLL-2 (>1.5 mW@632.8 nm)1
Transversal measurement stageRange: 80 mm; accuracy: 0.01 mm1
Magnetic base with post holderSZ-043
Two-axis mirror holderSZ-072
Lens holderSZ-082
Plate holderSZ-121
White screenSZ-131
Aperture adjustable bar clampSZ-191
Adjustable slitSZ-401
Laser tube holderSZ-421
Optical goniometerSZ-471
Polarizer holderSZ-513
Beam splitter50/502
Polarizer
2
Half-wave plate
1
Quarter-wave plate
1
Black glass
1
Flat mirrorΦ 36 mm2
Lensf ' = 6.2, 150 mm1 each
Grating20 l/mm1
Multiple-slit & multi-hole plate

Single slit: 0.06 & 0.1 mm

Multi-slit: 2, 3, 4, 5 (slit width: 0.03 mm; center-to-center: 0.09 mm)

Round holes: diameter: 0.05, 0.1,  0.2, 0.3, 0.4, 0.5 mm

Square holes: length: 0.05, 0.1,  0.2, 0.3, 0.4, 0.5 mm

1
Optical rail1 m; aluminum1
Universal carrier
2
X-translation carrier
2
X-Z translation carrier
1
Air chamber with gauge
1
Manual Counter4 digits, counts 0 ~ 99991
Photocurrent amplifierLLM-1 or LLM-21

Note: a stainless steel optical table or breadboard ( ≥ 900 mm x 600 mm) is needed for use with this kit.

LEOK-9 Interference, Diffraction-1.jpg

Schematic of a Mach-Zehnder interferometer


LEOK-9 Interference, Diffraction-2.jpg

Schematic of measuring the refractive index of air


LEOK-9 Interference, Diffraction-3.jpg

Fraunhofer diffraction of a single slit

LEOK-9 Interference, Diffraction-4.jpg

Fraunhofer diffraction of multiple slits


LEOK-9 Interference, Diffraction-5.jpg

Schematic of multi-slit diffraction


LEOK-9 Interference, Diffraction-6.jpg

Verification of Malus's Law

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