![]() ![]() ![]() ![]() ![]() |
![]() ![]() ![]() ![]() |
![]() ![]() |
![]() |
( 28490 of 28490 ) |
United States Patent | 3,571,592 |
Glass | March 23, 1971 |
A class of materials exemplified by mixed crystals of barium niobate and strontium niobate acts as a radiation detector by reason of the change in polarization resulting from the heating produced by an incident beam. This pyroelectric response is sufficiently rapid for infrared radiation that a pulse train well in excess of a megabit per second may be followed for incident beam power well below 1 watt.
Inventors: | Glass; Alastair M. (Murray Hill, NJ) |
Assignee: |
Bell Telephone Laboratories, Incorporated
(Murray Hill, Berkeley Heights,
NJ)
|
Appl. No.: | 04/749,354 |
Filed: | August 1, 1968 |
Current U.S. Class: | 250/338.3 ; 136/213; 374/177 |
Current International Class: | G02F 2/00 (20060101); G01k 007/02 (); H01j 039/00 () |
Field of Search: | 250/83,83.3 (IR)/ 73/356 |
3453432 | July 1969 | McHenry |
![]() ![]() |
![]() ![]() ![]() ![]() |