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Wavelength-selective detector based on a quantum well in a standing wave (1994)

Carraresi, L. ; De Souza, E. A. ; Miller, D. A. B. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 64 (1994), S. 134-136

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We present an example of a new class of optoelectronic devices realized by placing thin absorbers in a standing wave. Using quantum wells as absorbers and measuring the photocurrent from each of them separately it is possible to realize devices which accomplish complex tasks like separately detecting more than one wavelength at the same time or measuring the wavelength of a quasimonochromatic beam. In this letter we demonstrate a wavelength-selective detector based on a single quantum well. It detects at 850 nm with a bandwidth 〈10 nm, while rejecting at the shorter wavelength of 835 nm by a factor of 120.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.111542

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