WAVELENGTH-SELECTIVE DETECTOR BASED ON A QUANTUM-WELL IN A STANDING-WAVE

被引:8
作者
CARRARESI, L [1 ]
DESOUZA, EA [1 ]
MILLER, DAB [1 ]
JAN, WY [1 ]
CUNNINGHAM, JE [1 ]
机构
[1] UNIV FLORENCE,DIPARTIMENTO FIS,I-50125 FLORENCE,ITALY
关键词
6;
D O I
10.1063/1.111542
中图分类号
O59 [应用物理学];
学科分类号
摘要
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.
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页码:134 / 136
页数:3
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