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Spectrometer Kits

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Spectrometer Educational Kits




  • Designed for Education,Demonstration, and Classroom Use
  • Easy-to-Use Kit Includes All Component Plus Educational Materials

Spectrometer Educational Kits

  • Designed for Educational, Demonstration, and Classroom Use
  • Complete Kit Includes All Hardware Except Light Source
  • Includes Extensive Manual for Easy Assembly and Use

Experiment

  • Study the Spectral Makeup of Various User-Provided Light Sources
  • Basic Kit Includes Parts for a Grating-Based Spectrometer
  • Advanced Kit Includes Parts for Grating- and Prism-Based Spectrometers

Thorlabs offers two spectrometer kits for educational use. The basic kit includes the components to build a grating-based spectrometer, while the advanced kit contains components to build both a grating- and dispersing prism-based spectrometer. Although grating- and prism-based spectrometers can both be used to observe the spectra of various light sources, they function using very different physical principles. The grating spectrometer provides insights into interference and the wave nature of light, while the prism spectrometer provides the opportunity to study various ray optics concepts, such as an optical material's index of refraction as a function of wavelength.

Thorlabs Educational Products

Thorlabs' educational line of products aims to promote physics, optics, and photonics by covering many classic experiments, as well as emerging fields of research. Each kit includes all the necessary components and a manual that contains both detailed setup instructions and extensive teaching materials. These kits are being offered at the price of the included components, with the educational materials offered for free.

Thorlabs offers two spectrometer kits for educational use. The basic kit, EDU-SPEA1/M, includes the components to build a grating-based spectrometer, including a 1200 mm-1 diffraction grating. The advanced kit, the EDU-SPEB1/M, contains all of the components of the basic kit, as well as an additional 600 mm-1 diffraction grating and equipment to build a dispersing prism-based spectrometer. Please note that light sources are not included with the spectrometer kits, but LEDs, lasers, gas discharge tubes, light bulbs, and many other light sources can all be analyzed with these kits.

Grating-Based Spectrometer

The grating-based spectrometer, included in both kits, uses a ruled reflective diffraction grating to separate the spectral components of light. As seen in the photo to the right, the light is focused on an adjustable slit using a series of lenses. The light exiting the slit passes through another lens and is incident on a 1200 lines/mm ruled diffraction grating. Light is diffracted off of the grating and is incident on the viewing screen. Since the angle of diffraction is wavelength dependent, light diffracting off of the grating is separated into different wavelengths and appears at different locations on the screen. Both emission line and broadband sources can be analyzed, and the wavelength of spectral components can be calculated. Additionally, the interference properties of the diffraction grating can be studied with this spectrometer.

Prism-Based Spectrometer

The prism-based spectrometer, included in the EDU-SPEB1/M advanced kit, uses an equilateral dispersing prism to separate the spectral components of light. As seen in the photo to the right, light is focused on an adjustable slit using a series of lenses. The light exiting the slit passes through another lens, which focuses it onto the viewing screen after passing through the equilateral dispersing prism. Light of different wavelengths is refracted at different angles through the prism, so the light is separated into its spectral components when viewed on the screen. As with the grating-based kit described above, both emission line and broadband sources can be analyzed. Additionally, the refractive properties of the prism can be studied. For example, the index of refraction of the prism can be found by measuring the angle of minimum deviation.

We also offer similarly priced compact CCD-based spectrometers, which can be used for demonstration but provide quantitative measurements.

Spectrometer Kit Components

Thorlabs' Spectrometer kits have been carefully engineered to be easy to set up and to give clear, reliable results. The kits contain many stock Thorlabs components, making it possible to expand the scope of the experiment by purchasing additional components.

Light Sources Note: Light sources are not included with the spectrometer kits, but many light sources including LEDs, lasers, gas discharge tubes, and light bulbs can be analyzed.

Diffraction Gratings Handling Warning: Optical gratings can be easily damaged by moisture, fingerprints, aerosols, or the slightest contact with any abrasive material. Gratings should only be handled when necessary and always held by the sides. Latex gloves or a similar protective covering should be worn to prevent oil from fingers from reaching the grating surface. No attempt should be made to clean a grating other than blowing off dust with clean, dry air or nitrogen. Solvents will likely damage the grating's surface. Scratches or other minor cosmetic imperfections on the surface of a grating do not usually affect performance and are not considered defects.

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

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