Intersubband detector with avalanche multiplier region
US7271405B2 · kind B2 · utility
10Cited by
3References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 13, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Oct 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/14
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A photodetector for use at wavelengths of 2 μm and longer has an intersubband absorption region to provide absorption at wavelengths beyond 2 μm, integrated with an avalanche multiplier region to provide low-noise gain. In one particular design, the intersubband absorption region is a quantum-confined absorption region (e.g., based on quantum wells and/or quantum dots).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.