Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
62 (1993), S. 1179-1181
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
A steady-state photovoltaic effect of picosecond response speed has been observed in an asymmetrical graded InAlGaAs superlattice structure with a responsivity of ∼0.3 V/W and a saturation photovoltage of ∼0.3 V. For 10 devices of varying sizes ranging from 51 to 502 μm in diameter, the measured full width at half-maximum of the impulse response to a 1.6-ps laser pulse varies only twofold from 29 to 58 ps. The intrinsic rise time of each device is less than 10 ps. Steady-state photovoltage signals were observed in all the devices when excited with 100-ps–2-μs laser pulses. No dc bias voltage is needed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.108726
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