650nm

A 650nm laser operates in the red range of the electromagnetic spectrum. It's a popular choice for various applications due to its unique properties.

Key characteristics and applications:

High visibility: 650nm light is highly visible to the human eye, making it ideal for alignment, pointing, and presentation purposes.
Consumer electronics: It's commonly used in laser pointers, barcode scanners, and optical disc drives.
Scientific research: 650nm lasers are used in various scientific experiments, including spectroscopy and fluorescence microscopy.
Medical applications: They can be used for various medical procedures, such as laser therapy and retinal treatment.