Spectrometer - Physics Demonstrations - Spectrometer | Physics Undergraduate Labs

The near-UV flashlight emits UV-A radiation (365-400 nm). Keep it pointed away from the audience and avoid staring directly at the source.

Purpose

Uses a fiber-optic USB spectrometer to display real-time emission spectra of LED and UV light sources. Students see how different sources produce distinct spectral signatures and can measure wavelengths directly.

Hands holding fiber optic cable and a green laser pointer aimed at the cable tip, with laptop displaying OceanView software showing a sharp spectral peak; small blue USB spectrometer visible at left

Figure 1: Ocean Optics USB2000+ spectrometer connected to a laptop running OceanView software. The fiber optic cable collects light from a green laser pointer, producing the sharp peak shown on screen.

Multicolor LED Flashlight

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Optical Slider

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Color Filter Samples

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Safety Warnings

Warning: UV Exposure Caution

Purpose