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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xiying Chen Nabet, B. Quaranta, F. Cola, A. Currie, M. |
| Copyright Year | 2002 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA (Xiying Chen) |
| Abstract | A novel RCE (resonant-cavity-enhanced) HMSM (Heterostructure Metal-Semiconductor-Metal) photodetector with Al/sub 0.24/Ga/sub 0.76/As/Al/sub 0.9/Ga/sub 0.1/As distributed Bragg reflector is presented. The photocurrent spectrum shows a clear peak at 850 nm wavelength with full width at half maximum (FWHM) of around 30 nm. The top reflector is a delta modulation doped Al/sub 0.24/Ga/sub 0.76/As that also acts as the barrier enhancement layer thus providing very low dark current values. I-V curve shows that there is a five-fold decrease in dark current, with bias less than 10 V and a factor of two increase in photocurrent as a result of delta doping. Time response measurements gives a 3 dB bandwidth of about 33 GHz. Combination of low dark current, fast response, wavelength selectivity, and compatibility with high electron mobility transistors makes this device especially suitable for short haul communications purposes. |
| Starting Page | 1281 |
| Ending Page | 1284 |
| File Size | 259963 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780372395 |
| ISSN | 0149645X |
| DOI | 10.1109/MWSYM.2002.1011899 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-06-02 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Photodetectors Resonance Dark current Photoconductivity Distributed Bragg reflectors Delta modulation Doping Time factors Time measurement Wavelength measurement |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electrical and Electronic Engineering Radiation |
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