2.35 μm LEDs for measuring methane
А. А. ПоповPhysicotechnical InstituteV. V. SherstnevA. F. Ioffe Physicotechnical Institute Russian Academy of Sciences, St. PetersburgYu. P. YakovlevPhysicotechnical Institute
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GaAlAsSb/GaInAsSb/GaAlAsSb double-heterostructure LEDs emitting in the region of the 2.35 μm absorption band of methane have been developed for fast gas analyzers. Different designs of double heterostructures based on the solid solution GaInAsSb were studied. Continuous-wave optical power of 1.2 mW was achieved. The methane absorption spectrum for the LED radiation is presented.
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