Microcavity array IR photodetector

Journal Article · Thu Dec 31 04:00:00 EST 2009 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2009V039N12ABEH014148· OSTI ID:21467065

Esman, A K; Kuleshov, V K; Zykov, G L ^[1]

---

1. B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk (Belarus)

An original microcavity array IR photodetector is proposed and the sensitivity and response time of its pixels are calculated. A photosensitive element represents a composite silicon microcavity made of two optically coupled closed waveguides on a dielectric substrate whose resonance wave depends on its temperature. This dependence is used to detect IR radiation which heats an absorbing element and the composite microcavity thermally coupled with this element. It is shown that for a spatial resolution of 45 {mu}m, the time response is 30 ms and the sensitivity is 10{sup -3} K at the IR radiation power of {approx} 4.7 x 10{sup -8} W element{sup -1}. (photodetectors)

• OSTI ID: 21467065
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 12 Vol. 39; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC MATERIALS
ELECTROMAGNETIC RADIATION
ELEMENTS
INFRARED RADIATION
MATERIALS
MICROSTRUCTURE
PHOTODETECTORS
RADIATIONS
RESOLUTION
RESONANCE
SEMIMETALS
SENSITIVITY
SILICON
SPATIAL RESOLUTION
SUBSTRATES
WAVEGUIDES