Mechanism and Properties of Point Contact W-Ni Diode Detectors at 10.6 μm
Abstract
The responsivity of the tungsten-nickel point contact diodes for the CO2 laser is investigated as functions of the contact pressure and the oxide thickness on the nickel post in order to determine the detection mechanisms of point contact MIM diodes at 10.6 μm. The data are compared with the current-temperature (I--T) characteristics and the theory based on the equivalent circuit model. A comparison of the above data and the I--T characteristics indicates that the point contact MIM diode acts as a tunnel diode. It is confirmed, from a comparison of the above data and the theory based on the equivalent circuit model, that the MIM diode operates as a square-law detector for the CO2 laser.
- Publication:
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Japanese Journal of Applied Physics
- Pub Date:
- January 1978
- DOI:
- Bibcode:
- 1978JaJAP..17..171Y
- Keywords:
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- Carbon Dioxide Lasers;
- Electric Contacts;
- Infrared Detectors;
- Mim (Semiconductors);
- Nickel;
- Tungsten;
- Electrical Resistance;
- Electron Tunneling;
- Film Thickness;
- Laser Outputs;
- Oxide Films;
- Schottky Diodes;
- Semiconductor Diodes;
- Temperature Effects;
- Volt-Ampere Characteristics;
- Electronics and Electrical Engineering