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Pixelless infrared imaging utilizing ap-type quantum well infrared photodetector integrated with a light emitting diode

 

作者: L. B. Allard,   H. C. Liu,   M. Buchanan,   Z. R. Wasilewski,  

 

期刊: Applied Physics Letters  (AIP Available online 1997)
卷期: Volume 70, issue 21  

页码: 2784-2786

 

ISSN:0003-6951

 

年代: 1997

 

DOI:10.1063/1.119058

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We present experimental results which support a recently proposed scheme for infrared imaging through the combined use of a photon frequency up-conversion device with a charge coupled device (CCD) camera. The epitaxial device consists of a long wavelengthp-type GaAs/AlGaAs quantum well infrared photodetector (QWIP) on top of which is grown a shorter wavelength InGaAs/GaAs light emitting diode (LED). Upon long wavelength infrared excitation of the QWIP, near infrared light is generated by the LED whose output is directed towards a commercial CCD array where the up-converted image of the long wavelength infrared source object is formed. ©1997 American Institute of Physics.

 

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