EXCESS NOISE IN SEMICONDUCTORS.
Status rept. no. 4, 1 Jul-30 Sep 65,
IIT RESEARCH INST CHICAGO IL
Pagination or Media Count:
The noise correlation spectrum between optical emission fluctuations and forward current noise of a GaAs luminescent diode was measured. The spectrum exhibits two characteristic time constants of 12 and 0.5 milliseconds, which presumably are associated with carrier transitions in the junction region. The correlated noise magnitude increases linearly with the dc forward current. As a preliminary to optical absorption fluctuation measurements, the radiant energy from a tungsten ribbon lamp has been determined using a novel self-calibrating technique. This technique uses the noise and signal response characteristics of a PbS cell and is self-calibrating. Author