solid-state diode laser

instrument

Also known as: semiconductor diode laser

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Last updated

July 14, 2026

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A solid-state diode laser is a type of laser that emits light when an electric current passes through it. This occurs at the interface between two different doped semiconductor materials, known as a p-n junction. These lasers are widely used today and can emit visible or infrared light. The specific wavelength of light produced depends on the semiconductor compound used. Semiconductor diode lasers are crucial for applications like reading data from optical discs, such as CDs, DVDs, and Blu-ray discs, with newer technologies utilizing shorter-wavelength lasers for higher data density.12

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laser
Types of lasers
…widely used lasers today are semiconductor diode lasers, which emit visible or infrared light when an electric current passes through them. The emission occurs at the interface (see p-n junction) between two regions doped with different materials. The p-n junction can act as a laser medium, generating stimulated emission
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…widely used lasers today are semiconductor diode lasers, which emit visible or infrared light when an electric current passes through them. The emission occurs at the interface (see p-n junction) between two regions doped with different materials. The p-n junction can act as a laser medium, generating stimulated emission
Read More

spectroscopy
Infrared instrumentation
The development of solid-state diode lasers, F-centre lasers, and spin-flip Raman lasers is providing new sources for infrared spectrometers. These sources in general are not broadband but have high intensity and are useful for the construction of instruments that are designed for specific applications in narrow frequency regions.
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The development of solid-state diode lasers, F-centre lasers, and spin-flip Raman lasers is providing new sources for infrared spectrometers. These sources in general are not broadband but have high intensity and are useful for the construction of instruments that are designed for specific applications in narrow frequency regions.
Read More