405nm (InGaN)

A 405nm laser operates in the violet range of the electromagnetic spectrum. It's a popular choice for various applications due to its unique properties.

Key characteristics and applications:

  • High absorption: 405nm light is strongly absorbed by many biomolecules, making it ideal for fluorescence microscopy, flow cytometry, and laser-induced breakdown spectroscopy (LIBS).
  • Compact size: Lasers emitting at this wavelength are often compact and portable, suitable for field applications and integration into smaller devices.
  • Data storage: 405nm lasers are used in some optical disc drives, such as Blu-ray, for high-density data storage.
  • Medical applications: They can be used for various medical procedures, including skin resurfacing and retinal treatment.
405nm (InGaN)

6 products

  • Generate 405nm Light

    Direct Diode Laser: This is the most common and efficient method. A semiconductor diode, specifically designed to emit at 405nm, is electrically pumped to produce laser light. These diodes are often fabricated using materials like gallium nitride (GaN).

    Frequency Doubling: In this method, a laser emitting at a longer wavelength (typically around 810nm) is passed through a nonlinear crystal. The crystal converts the infrared light into 405nm light through a process known as second-harmonic generation.

  • Summary

    Generally affordable: 405nm lasers, especially direct diode lasers, are relatively affordable compared to some other laser wavelengths. This is due to their widespread use in various applications.

    Power and specifications: The cost can vary depending on the desired power output, beam quality, and additional features like temperature control or modulation capabilities.

    Visible but dim: While 405nm light is technically visible to the human eye, it appears as a dim purple color. This is because our eyes are less sensitive to shorter wavelengths.

    Safety precautions: It's important to handle 405nm lasers with care, as even low-power lasers can be harmful to the eyes if not used correctly. Protective eyewear should always be worn when working with lasers.

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