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The physics of heterodyne detection in the far-infrared: transition from electric-field to photon-absorption detection in a simple system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Teich, M. C. |
| Copyright Year | 1980 |
| Description | The history of heterodyne detection is reviewed from the radiowave to the optical regions of the electromagnetic spectrum with emphasion the submillimeter/far infrared. The transition from electric field to photon absorption detection in a simple system is investigated. The response of an isolated two level detector to a coherent source of incident radiation is calculated for both heterodyne and video detection. When the processes of photon absorption and photon emission cannot be distinguished, the relative detected power at double- and sum-frequencies is found to be multiplied by a coefficient, which is less than or equal to unity, and which depends on the incident photon energy and on the effective temperature of the system. |
| File Size | 447610 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800021152 |
| Archival Resource Key | ark:/13960/t7kq2t95c |
| Language | English |
| Publisher Date | 1980-08-01 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Infrared Detectors Beat Frequencies Far Infrared Radiation Optical Heterodyning Electromagnetic Absorption Emission Spectra Submillimeter Waves Absorption Spectra Radio Physics Laser Applications Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
