Loading...
Please wait, while we are loading the content...
Similar Documents
Some n-p (hg,cd)te photodiodes for 8-14 micrometer heterodyne applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Shanley, J. F. Flanagan, C. T. |
| Copyright Year | 1980 |
| Description | The results describing the dc and CO2 laser heterodyne characteristics of a three element photodiode array and single element and four element photodiode arrays are presented. The measured data shows that the n(+)-p configuration is capable of achieving bandwidths of 475 to 725 MHz and noise equivalent powers of 3.2 x 10 to the minus 20th power W/Hz at 77 K and 1.0 x 10 to the minus 19th power W/Hz at 145 K. The n(+)-n(-)-p photodiodes exhibited wide bandwidths (approximately 2.0 GHz) and fairly good effective heterodyne quantum efficiencies (approximately 13-30 percent at 2.0 GHz). Noise equivalent powers ranging from 1.44 x 10 to the minus 19th power W/Hz to 6.23 x 10 to the minus 20th power W/Hz were measured at 2.0 GHz. |
| File Size | 654426 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800021172 |
| Archival Resource Key | ark:/13960/t0fv3cn33 |
| Language | English |
| Publisher Date | 1980-08-01 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Cadmium Semiconductor Devices Optical Heterodyning Signal To Noise Ratios Carbon Dioxide Photodiodes Mercury Metal Tellurium Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
