1. Monolithic silicon bolometers as sensitive MM-wave detectors
- Author
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K. Farooqui, S. H. Moseley, C. A. Allen, Jun-Wei Zhou, Peter T. Timbie, D. B. Mott, and Grant W. Wilson
- Subjects
Coupling ,Waveguide (electromagnetism) ,Materials science ,Silicon ,business.industry ,Bolometer ,Detector ,chemistry.chemical_element ,law.invention ,Responsivity ,Optics ,Si substrate ,chemistry ,law ,Coupling efficiency ,Optoelectronics ,business - Abstract
We report the development of a waveguide-coupled monolithic Si bolometer for applications in low-background millimeter-wave astrophysical observations. In this device, the absorber of the bolometer is a narrow Bi-coated Si substrate oriented along the E-plane of the waveguide. This design allows efficient coupling of bolometers to waveguide. We measured these devices to have a high coupling efficiency, an electrical responsivity /spl ap/2/spl times/10/sup 9/ V/W, and electrical noise equivalent power (NEP) /spl ap/10/sup -17/ W//spl radic/(Hz) at /spl sim/100 mK. >
- Published
- 2002