High sensitivity two photon absorption microcavity autocorrelator
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Krug, T., Lynch, M., Bradley, A.L., Donegan, J.F., Barry, L.P., Folliot, H., Roberts, J. S., Hill, G., High sensitivity two photon absorption microcavity autocorrelator, Photonics Technology Letters, 16, 2004, 1543 - 1545
Abstract
A GaAs?AlAs microcavity device has been used
as a photodetector in an autocorrelator for measuring the
temporal pulsewidth of 1.5- m optical pulses. Enhancement of
the two-photon absorption photocurrent due to the microcavity
structure results in an autocorrelation (average power times peak
power) sensitivity of 9 3 10 4 (mW)2, which represents
two orders of magnitude improvement when compared with
conventional autocorrelators
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Author's Homepage: http://people.tcd.ie/jdonegan
Type of material: Journal Article