Abstract
LEDs have been created that emit in the region of the fundamental absorption band of methane at a wavelength of 3.3 μm for fast-response gas analyzers. A continuous optical power of 0.13 mW (cw) is achieved, and the peak optical power is 2.2 mW (the pulsewidth is 50 0μs, and the inverse duty cycle is 1.6×102). The current dependence of the optical power on the pump-pulse parameters is studied, and the conditions are found under which the peak power of the radiation of the LEDs in the mid-IR region is maximized.
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Pis’ma Zh. Tekh. Fiz. 23, 24–31 (November 12, 1997)
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Popov, A.A., Stepanov, M.V., Sherstnev, V.V. et al. 3.3-μm LEDs for measuring methane. Tech. Phys. Lett. 23, 828–830 (1997). https://doi.org/10.1134/1.1261898
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DOI: https://doi.org/10.1134/1.1261898