MICHELSON INTERFERO-METER
Item Code : SK025/SK079/SK002
Principle and Working:
The Michelson Interferometer uses a coherent light beam that enters a beam splitter and is divided into two parts. These two beams travel in different directions and are reflected by two mirrors, forming interference patterns when they recombine and superimpose.
In this setup, we measure the wavelength of sodium light, a diode laser, and a He-Ne laser using the equation:
Where,
ΔL = is the distance traveled by movable mirror.
n = is the number of intensity maxima counted.
- High quality optics (flatness λ/8)
- Highly stable Interferometer body (weight 7.8 kg approx)
- 3 Knurled screw for easy mirror adjustment
- Modern & user friendly design.
- Gear arrangement provides Least count 0.0001 mm
- 4 Levelling screws for height adjustment
To determine the wave length of monochromatic light
- Using Diode laser (SK079).
- Using He- Ne laser (SK025).
- Using sodium light source (SK002).
- Moveable mirror : Range 10-0-10mm.
- Course knob : Least count 0.01 mm.
- Micro meter fine : Least count 0.0001mm.
- Beam splitter : Rectangular, size 50 x 39 x 7mm, R/T% 50/50, Flatness λ/8 (at 632mm).
- Compensator : Rectangular, size 50 x 39 x 7mm, Flatness λ/8 (at 632mm).
- Mirror : Circular, 2 nos., dimension 30 x 10mm.
- Dimension : 290 x 210 x 230mm (L x W x H).
- Telescope : Tube 90 x 25mm (L x Ø), 10x eye piece.
- Laser : He-Ne Laser (632mm), Power 2 mW, Beam spot 2.5mm, current 4mA ~ 6mA, Dimension 300 x 62 x 82mm, Weight 1.5 kg (approx.).
- Beam expender : Microscope objective, 10x.
- Lab jack : Adjustable 320 x 220mm.
- Moveable mirror : Range 10-0-10mm.
- Course knob : Least count 0.01 mm.
- Micro meter fine : Least count 0.0001mm.
- Beam splitter : Rectangular, size 50 x 39 x 7mm, R/T% 50/50, Flatness λ/8 (at 632mm).
- Compensator : Rectangular, size 50 x 39 x 7mm, Flatness λ/8 (at 632mm).
- Mirror : Circular, 2 nos., dimension 30 x 10mm.
- Dimension : 290 x 210 x 230mm (L x W x H).
- Telescope : Tube 90 x 25mm (L x Ø), 10x eye piece.
- Laser : Diode Laser (635mm), Power 5 mW.
- Beam expender : Microscope objective, 10x
- Lab jack : Height Adjustable, Size 160 x 130mm.
- Moveable mirror : Range 10-0-10mm.
- Course knob : Least count 0.01 mm.
- Micro meter fine : Least count 0.0001mm.
- Beam splitter : Rectangular, size 50 x 39 x 7mm, R/T% 50/50, Flatness λ/8 (at 632mm).
- Compensator : Rectangular, size 50 x 39 x 7mm, Flatness λ/8 (at 632mm).
- Mirror : Circular, 2 nos., dimension 30 x 10mm.
- Dimension : 290 x 210 x 230mm (L x W x H).
- Telescope : Tube 90 x 25mm (L x Ø), 10x eye piece.
- Sodium source : MS housing, 200 x 85mm (L x Ø), slit (L x W) 20x16mm.
- Sodium bulb : 35W, Dia 2 inch, Length 12 inch.
| S.No. | Item Name | SK079 | SK025 | SK002 |
|---|---|---|---|---|
| 1 | Screen Metal | 1 | 1 | – |
| 2 | Holder for Microscope Objective | 1 | – | – |
| 3 | Sheet for Laser Base | 1 | – | – |
| 4 | Diode Laser (red) | 1 | – | – |
| 5 | Adaptor 5 Volt | 1 | – | – |
| 6 | Microscope objective | 1 | 1 | – |
| 7 | Cylindrical base | 1 | 1 | – |
| 8 | Michelson interferometer | 1 | 1 | 1 |
| 9 | Laboratory jack | 1 | 1 | – |
| 10 | Laser Adapter for Microscope Objectives | – | 1 | – |
| 11 | Bumpon Tapered Square for Laser | – | 4 | – |
| 12 | He-Ne Laser | – | 1 | – |
| 13 | Telescope Assembly with Holder | – | – | 1 |
| 14 | Pin hole and ground screen with holder | – | – | 1 |
| 15 | Sodium light housing | – | – | 1 |
| 16 | Power Cord (Main Lead) | – | – | 1 |
| 17 | Stand Base (A Shaped) | – | – | 1 |
| 18 | Sodium Bulb (35W) | – | – | 1 |
| 19 | Boss Head Square (Universal Clamp) | – | – | 1 |
| 20 | Power supply for Sodium Light | – | – | 1 |
| 21 | Clamping Rod | – | – | 1 |
| 22 | Stand Rod | – | – | 1 |