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PHYSICS
Optoelectronics
Tunable Infrared Light Source
Tunable infrared light sources unlock invisible molecular signatures for advanced sensing
5 Feb 2026
0
What is the primary mechanism that allows a tunable infrared light source to emit different wavelengths of light?
Changing the intensity of the electrical current without altering the semiconductor properties
Using a fixed semiconductor band gap and relying solely on external filters to change wavelength
Adjusting the semiconductor band gap or device structure to change photon energy
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