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US 8,772,890 B2Granted
Apparatus and method of detecting electromagnetic radiation
AssigneeTerasense Group, Inc.
InventorsIgor Kukushkin, Viacheslav Muravev
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Abstract
A high speed and miniature detection system, especially for electromagnetic radiation in the GHz and THz range comprises a semiconductor structure having a 2D charge carrier layer or a quasi 2D charge carrier layer with incorporated single or multiple defects, at least first and second contacts to the charge carrier layer, and a device for measuring photovoltage between the first and second contacts. System operation in various embodiments relies on resonant excitation of plasma waves in the semiconductor structure.
Claims30
A solid state detector apparatus comprising:
- a semiconductor structure having a charge carrier layer, wherein charge carriers move in two dimensions (2D);
- at least one defect;
- and
- at least a first and a second contact defining a length of said charge carrier layer, said contacts being spaced apart by a distance, wherein the at least one defect and at least one of the first and second contacts define at least two length of regions which can act as resonant plasmon cavities.
1 more element
Dependencies are inferred from the claim text.