What type of lasers primarily use wavelengths between 322-799nm?

The range of wavelengths between 322-799 nm is primarily associated with dye lasers, which are known for their ability to emit a wide range of wavelengths due to the dye molecules that can be dissolved in a solvent. Dye lasers are tunable, meaning they can produce specific wavelengths based on the dye used, making them very versatile for various applications, including medical and scientific fields.

Gas lasers typically operate at different wavelengths, often in the visible and infrared regions, depending on the specific gas used. Solid-state lasers also have distinct wavelength ranges depending on the type of gain medium. Semiconductor diode lasers, on the other hand, generally operate within the visible to near-infrared spectrum but have a specific range of wavelengths that tend to be outside the provided range.

Understanding the unique characteristics of dye lasers clarifies why they are the right choice for this question, particularly due to their tunability and capability to emit across the specified wavelength range.