Advanced Technocracy Inc.
Grain Market, Ambala, Haryana
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Various Type of Inteferometers and C.D.S

Offering you a complete choice of products which include sodium light complete unit, helium-neon laser with stand, diode laser with power supply (red colour), michelson interferometer, fabry perot interferometer and fabry-perot interferometer.

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Generally this light source is used for above Michelson Interferometer. Supplied with sodium vapour lamp transformer 35 W, sodium vapour lamp 35W & heavy metal box for sodium vapour lamp with electrical fitting.
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Imported Laser tubes along with SMPS Power Supply are housed in thick powdered coated aluminium box . From the hole the laser beam comes out. Supplied with rectangular holder & heavy base.

Size
a 1mW (random)
b  2mW (random)
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A compact, fully solid state instrument produces an intense beam of light at a wavelength 635-670nm for red colour. This semiconductor diode laser is mounted in a simple mount. Supplied completely with power supply. Output power 3 - 5 mW
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Michelson Interferometer (Bread Board Model) (To find Refractive index of gas/air)
Same as [Michelson Interferometer (Bread Board Model) - Coherent Length of the Laser]but we can also study the change of refractive index of air with change in pressure & determine the refractive index of air.
It consists of list of items as per  [Michelson Interferometer(Bread Board Model) - Coherent Length of the Laser]in addition to this it also consists of compressor, pressure chamber, valve & pedestal air pump etc.
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This Model is mounted on a heavy iron base. It is most suitable for Educational Institution. Various Components are made from high precision machines, mounted on the aluminium base and the complete interferometer is mounted on a heavy cast iron base.
It consists of beam splitter and compensator Plates mounted in an aluminium housing. It is fitted on the aluminium base at 45° to two reflecting mirrors. All flat optics used have flatness of at least l/4 and are protected with a layer of silicon Monoxide coating.
Least Count 0.01mm. It also consist of reading telescope of magnification 3x, fitted with Ramsden eyepiece & cross line graticule. 20x objective with mount is also supplied with interferometer (in case of work with He-Ne Laser or Diode Laser).
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It is specially useful for accurate measurements, comparison of wavelengths and examination of hyperfine structure of spectral lines. It is also used for measuring wavelength changes by application of magnetic field.
It consist of a partially coated mirror mounted in an alumminium housing. This module is placed in front of the moving mirror to set up the Fabry Perot Interferometer. Two adjustable screws are provided for making the two etalons parallel.
In built Telescope has a magnification of 3x and is fitted with a Ramsden eyepiece & a cross line graticule.
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In Fabry-Perot interferometer, the distance between partially reflecting mirrors are varied by using coarse and fine translation stage driven by micrometers. One beam splitter is fixed and the other is mounted on the translation stage through a kinematic mount. The two axes kinematic mount is used to correct the parallelism between beam splitters.
Translation stages are fitted with micrometers for both coarse and fine movements in order to get precision measurements. All components and modules are mounted on rail and carriage system for easy adjustments. The optics and mechanics assembly is made out of corrosion free materials.
List of instruments supplied in this kit
• Optical rail.
• Diode Laser with Power supply
• Kinematic Laser mount with rail carriage
• Fabry-Perot Interferometer with rail carriage
• Lens with mount and rail carriage
• Translucent screen with rail carriage
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The Sagnac effect manifests itself in an experiments setup called ring interferometry. A beam of light splits and the two beams are made to follow a trajectory in opposite directions. To act as ring, the trajectory must enclose an area. On return to the point of entry, the light is allowed exit to the apparatus in such a way that an interference pattern is obtained. The arrangement for Sagnac interferometer is as shown in the figure.
Sagnac interferometer employs modular in design and construction. Mirrors beam splitters and lasers along with mechanical mountings are supplied as individual modules which can be assembled on honeycomb breadboard.
The device consists of 800 mm x 600 mm honeycomb breadboard with a rigid and vibration resistant base for assembling the interferometer. Mirrors and beam splitters are held in precision kinematic mounts for fine alignments. Laser head is also held in a kinematic mount for fine tuning the direction of the laser beam.
Students gain hands on experience in optical instruments assembly by setting up the interferometer.
Sagnac effect is employed in current technology. One of the use is in inertial guidance system. Ring interferometers are extremely sensitive to rotations. In the Sagnac configuration, the position of the interference fringes is dependent on angular velocity of the setup. This dependence is caused by the rotation, effectively shortening the path length of one beam, while lengthening the other.
List of instruments supplied in this kit
• Optical breadboard
• 5mW Diode Laser with Power supply
• Kinematic Laser mount with carriage
• Metallic beam splitter with kinematic mount
• Front coated mirror with kinematic mount
• Convex lens with mount Optical breadboard
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Product Details:
BrandATICO

Description:

Advanced Technocracy Inc. is Manufacturer, Exporter & Supplier of Rayleigh Interferometer.

Specification:

For measurement of refractive index of liquids & gases. The interference fringes are magnified in the instrument to over 100times by means of a cylindrical lens of the eye-piece which provides horizontal magnification. The fringes produced are sharp at the normal distance of distinct vision.

It consists of following items :-

  • a) Heavy metal platform
  • b) Collimator with circular slit is fixed at one end.
  • c) Telescope with cylindrical lens instead of Ramsden eyepiece is fitted on other side of the table.
  • d) One metal box which is fitted in the front of the telescope consist of Razor Glass Plate inclined at an angle of 45 deg. This box also contains compensation plates. The whole system is connected to micrometer screw gauge to record the readings.
  • e) Plane parallel optical glass cells for liquids.
  • f) Pair of gas cells with plane parallel windows for the measurement of refractive index of gases.
  • g) Vacuum pump single stage having displacement of 32 liters per minute with manometer.
  • Supplied without sodium Lamp Unit.

 

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This design concept followed in this device is similar to Sagnac interferometer. The device is assembled using modular building blocks on a rigid base. A honeycomb anti- vibration breadboard of size 800mm x 600mm is supplied as the base. Mirrors, beam splitter and diode laser along with their mounts are supplied as modular building blocks.
Interferometer is built by assembling the building blocks on the breadboard as per the desired optical layout. Optics and laser head are held using kinematic mounts with two axes fine adjustment for obtaining the interference fringes are done using kinematic mounts.
One of the simplest experiments using the Mach-Zehnder interferometer is measurement of the index of refraction of air with an airtight test cell placed in one of its optical arms of the interferometer. No other factors such as convective airflow should be present which can generate optical path differences.
The flexibility in fringe localization gives Mach-Zehnder interferometer one of the important advantage over other interferometers. Although many Mach - Zehnder interferometers use a rectangular arrangement, the parallelogram arrangements are also possible.
List of instruments supplied in this kit• Optical breadboard
• 5mW diode laser with power supply
• Kinematic laser mount
• Metallic beam splitter with kinematic mount
• Front coated mirror with kinematic mount
• Gas cell with accessories
• Convex lens with mount
• Screen
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(a) Collimating Tube : (Material : Brass Pipe) O.D.: 50mm I.D. : 44mm for fitting collimating lens
It is provided with rack & pinion arrangement and slit.
Slit is of circular type.
The jaws of the slit are optically ground.
It is provided with Holfmann’s Diaphragm.
(b) Telescope Tube : (Material : Brass Pipe) O.D. : 50mm, I.D. : 44mm for fitting telescope lens
It is provided with rack & pinion arrangement for proper focussing of spectral lines.
Eyepiece ; (Ramsden Type) : magnification : 10x
In eyepiece holder a conical pointer is fitted in the focal plane of eyepiece
(c) Corrected achromatic doublet are fitted in the lens holders of collimator and telescope tube.
Doublet dia : 44mm, F.L. : 350mm (14").
The Collimator and telescope tubes are fitted in cast iron blocks which are mounted on a machined cast iron blocks which in turn are mounted on a machined cast iron plate.
(d) Suitable gap is provided between collimating lens and prism table to accommodate high resolving instrument like Fabry-Perot Etalon.
(e) Prism Table is fitted on the machined cast iron plate and actuated by tangent screw to provide smooth rotation of the C.D.S. prism placed on it.
(f) Prism table is covered with a box of a aluminium casting having two gates.
One gate allows light coming from collimator to enter into C.D.S. Prism
Another gate allows light to be collected by telescopic objective after light being dispersed from C.D.S. prism.
(g) A calibrated drum (Calibration for visible region i.e. from 4000A°- 7000A°) is attached with the prism table assembly. Accuracy of calibration + 5A°
(h) Machined cast iron plate with drum assembly is fitted over the head of a heavy cast iron base.
The base and machined cast iron plate are painted in a staple Grey colour.
Collimator, Telescope, Prism table, Drum assembly are painted black.
Total Weight : 20Kg.
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Material optically Glass R.I. either m = 1.717 or 1.78. Three faces of the prism are optically flat to surface finish l/10.
(While placing order please specify the refractive index of the CDS prism.)

Size
a µ = 1.717
b  µ = 1.78
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It is to take photographs of spectral lines. The quarter size camera is fitted in the place of telescope tube while taking photographs. The objective of the telescope is replaced by tele photo lens of the suitable focal length.
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The instrument is made in different sizes of spacers in silica. The mirrors are about 30 mm in dia & with clear aperture 25mm but other sizes can be manufactured if required by the customer specially. Both optically plane Glass plates are coated 50% each. Space between them is 3mm. It is used either with Mercury or Sodium Light.
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Product Details:
BrandATICO
Specifications are same as (Fabry-Perot Etalon) but optically Glass plates are coated in the ratio 80% & 20% to be used with He-Ne Lasers.
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Product Details:
BrandATICO

Description:

Condenser lenses are used for concentrating light into a beam. Condenser lenses are typically used in enlargers, projectors and illumination lighting systems. This range of large condenser lenses have been optically polished and of high quality at very reasonable prices. Our stock range of high quality planoconvex condenser lenses are available direct from this page with focal lengths between 250mm to 500mm and diameters between 114mm and 250mm.

Specification:

  • Material: BK7 or equivalent
  • Diameter: ± 0.25mm
  • Focal length (@587nm): ± 5%
  • Surface quality: <60-40 scratch/dig

 

 

 

 

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Product Details:
BrandATICO

Description:

Advanced Technocracy Inc. manufacturer and supplier of Monochromator.

Monochromators are designed for general spectroscopic research needs.These monochromators are designed using single 1200 lines / mm holographic precision grating. A microprocessor onboard controls the motor for precision wavelength positioning. The instrument can be operated either from the front panel or through a personal computer which can be interfaced with the device by using RS 232C serial port. The front panel of the device has user friendly keyboards and back lit LCDs. Input and output ports of the monochromator are fitted with precise, micrometer controlled variable slits. Mirrors are kinematically mounted for fine tuning during installation and setup. The software developed for the instrument has facilities for setting up and calibration as well. System accepts input data as wavelength or wave number.

Features:

 

  • Micrometer adjustable slits to precisely control incoming light.
  • User specified gratings to meet specific applications
  • Stepper motor scanning for precision wavelength positioning
  • Internal shutter or filter wheel (Optional)
  • Motorized slit (Optional)
  • Custom configurations

 

Specification:

  • Optical path configuration: Czerny-Turner type
  • Wavelength Range: 200 - 1600 nm
  • Scanning Range: 200 - 1100 nm
  • Collimating & Focusing mirror: 50 mm dia, 300 F
  • Optical Grating: 1200 l / mm
  • Grating Size: 50 x 50 mm
  • Absolute Diffraction Efficiency: 45 - 65 %
  • Slit Width: 0 ~ 3 mm Continuously Adjustable
  • Resolution: 0.1 nm (@ 546 nm, 10 μm slit width)
  • Wavelength Accuracy: ≤ 0.2 nm
  • Wavelength Repeatability: ≤ 0.1 nm
  • Stray Light: ≤ 10-3
  • Reciprocal of Linear Dispersion: 2.7 mm

 

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Advanced Technocracy Inc.

Kunal Chopra (CEO)
ATICO House 5309, Grain Market, Near B.D. Senior Secondary School
Ambala - 133001
Haryana, India
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