Patent ID: 7741604
Filing Date: 2010-06-22
Classification: G01J

Abstract:
1. A bolometer-type THz-wave detector comprising: a substrate provided with a read-out integrated circuit; a temperature detecting portion opposed to said substrate and provided with a bolometer film and an absorbing film for absorbing a THz wave and having a sheet resistance in a range of 30 to 50 Ω/square; a reflective film formed on a face opposed to the temperature detecting portion of said substrate for reflecting said THz wave and forming an optical resonance structure with said temperature detecting portion; a supporting portion arranged on said substrate and supporting said temperature detecting portion so that a gap between said reflective film and said temperature detecting portion is in a range of 1.5 to 2.5 μm; and electrode wiring connecting said read-out integrated circuit and said bolometer film.