Products / Physics Lab Instruments / Diffraction / Goniometer Based Apparatus for Diffraction Experiments

Goniometer Based Apparatus

for Diffraction Experiments

for Diffraction Experiments

Model: HO-ED-D-03

Goniometer Based Apparatus for diffraction experiments (Model No: HO-ED-D-03) is, designed as a versatile instrument suitable for any optics laboratory. It’s optical rail based construction allows the user to configure it for multitudes of applications.

The apparatus can be used for studying both reflecting and transmitting type diffracting elements. Unlike conventional spectrometergoniometers, all modules in this device are open, simple and easy to assimilate. This feature gives students better understanding.

The apparatus can also be used for many other applications like measurement of prism angles, refraction angle etc., where spectrometergoniometers are generally used. All components are made from corrosion free laboratory grade materials. Optical components are made of research quality N-BK 7 optical glass.

This apparatus consists of a goniometer for measuring diffraction angle directly and a precision adjustable slit through which light passes before falling on the diffracting element. The function of goniometer and positioning stage is to establish and control the geometric relationship between the incident beam, diffraction cell and telescope. The goniometer is also the supporting base to many components, such as the optics, diffraction cell stage, telescope and so on. The equipment is specifically suited for studying elements with considerably greater diffraction angles, like holographic gratings. As the readings are taken through an eyepiece with cross wire, precise results are achieved.

Experiment Examples

Diffraction of light by single slit

The diffraction equation (condition for minima) is,

**Sin θ _{m} = m λ / d**

Where **d** is the slit width, **m** is the order, **λ** is the wavelength of laser used and **θ _{m}** is the angle subtended within the central maximum and

From this we can find out the slit width **d** as

**d = m λ / Sin θ _{m}**

Diffraction of light by double slit

The diffraction equation (condition for maxima) is,

**Sin θ _{m} = m λ / d**

Where **d** is the slit width, **m** is the order, **λ** is the wavelength of laser used and **θ _{m}** is the angle subtended within the central maximum and

From this we can find out the slit width **d** as

**d = m λ / Sin θ _{m}**

Diffraction of light by single wire

The diffraction equation (condition for maxima) is,

**Sin θ _{m} = m λ / d**

Where **d** is the slit width, **m** is the order, **λ** is the wavelength of laser used and **θ _{m}** is the angle subtended within the central maximum and

From this we can find out the slit width **d** as

**d = m λ / Sin θ _{m}**

Diffraction of light by cross wire

The diffraction equation (condition for maxima) is,

**Sin θ _{m} = m λ / d**

**d** is the slit width, **m** is the order, **λ** is the wavelength of laser used and **θ _{m}** is the angle subtended within the central maximum and

From this we can find out the slit width **d** as

**d = m λ / Sin θ _{m}**

Diffraction of light by wire mesh

The diffraction equation (condition for maxima) is,

**Sin θ _{m} = m λ / d**

**d** is the slit width, **m** is the order, **λ** is the wavelength of laser used and **θ _{m}** is the angle subtended within the central maximum and

From this we can find out the slit width **d** as

**d = m λ / Sin θ _{m}**

Diffraction of light by transmission grating

The diffraction equation (condition for maxima) is,

**Sin θ _{m} = m λ / d**

**d** is the slit width, **m** is the order, **λ** is the wavelength of laser used and **θ _{m}** is the angle subtended within the central maximum and

From this we can find out the slit width **d** as

**d = m λ / Sin θ _{m}**

Features

Modern, versatile and user friendly design

Precision optical Instrument

Angular adjustments for telescope possible

Modern, versatile and user friendly design

Precision optical Instrument

Angular adjustments for telescope possible

Related Topics

Single slit

Double slit

Single wire

Cross wire

Wire mesh

Transmission grating

Single slit

Double slit

Single wire

Cross wire

Wire mesh

Transmission grating

Scope of Supply

Goniometer

Model No: ED-D-03-G

Resolution of prism table

:

10 arc min

Resolution of stage

:

1 arc min

Quantity

:

1 no.

Optical Rail

Model No: ED-D-03-OR

Length

:

500 mm

Material

:

Black anodized Aluminum alloy

Quantity

:

1 no.

Slit with Mount

Model No: ED-D-03-SM

Controlling

:

Lead screw

Slit Size

:

0 - 3mm

Quantity

:

1 no.

Collimating Lens with Mount

Model No: ED-D-03-CLM

Focal length

:

202 mm

Diameter

:

50 mm

Quantity

:

1 no.

Cell Mount

Model No: ED-D-03-CM

Material

:

Black anodized Aluminum alloy

Diameter

:

30 mm

Quantity

:

1 no.

Telescope

Model No: ED-D-03-T

Magnification

:

10 X

Quantity

:

1 no.

Diffraction Cells

Model No: ED-D-03-DC

Single slit

:

50 & 100 micron

Double slit

:

100 & 200 micron

Transmission grating

:

30 lines / mm

Single wire

Cross wire

Wire mesh

Pinhole

Quantity

:

1 set.

High Bright LED with Power Supply

Model No: ED-D-03-HLED

Output Power

:

0 - 1 Watt Variable

Wavelength

:

535 nm

Quantity

:

1 no.

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