Dual wavelength GaSb based type I quantum well mid-infrared light emitting diodes

Seungyong Jung; Suchalkin, Sergey; Kipshidze, Gela; Westerfeld, David; Golden, Eric; Snyder, Donald; Belenky, Gregory
May 2010
Applied Physics Letters;5/10/2010, Vol. 96 Issue 19, p191102
Academic Journal
We have designed and developed dual wavelength type I quantum well light emitting diodes (LEDs) operating at 2 μm and 3–3.4 μm wavelengths with independently controlled intensities. The room temperature quasicontinuous wave output power was 2.8 mW at 2 μm and 0.14 mW at 3 μm. The design of the dual wavelength structure allows for monolithically integrating LED pixels with different wavelengths opening the way for the fabrication of multiwavelength LED arrays for multispectral and hyperspectral imaging applications.


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