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Paris NanoSciences Institute |  |
Conference papers
Coherent generation of acoustic phonons in an optical microcavity
Abstract : Coherent acoustic phonons confined in a nanocavity are generated in an optical microcavity. The confinement of the femtosecond light pulse in the optical resonator amplifies both processes, generation and detection of the acoustic phonons. In addition, due to the standing wave character of the photon field, phonons of wavevector q = 0 and q = 2k (k is the light wavenumber) contribute to both the generation and detection in time resolved reflectivity measurements, further optimizing the pump and probe experiments. Time resolved differential reflectivity experiments are reported as a function of laser energy. The optical cavity resonance is apparent in the amplitude and spectral features of the Fourier transformed signals.
https://hal.archives-ouvertes.fr/hal-00418785
Contributor : Elisabeth Martin Connect in order to contact the contributor
Submitted on : Monday, September 21, 2009 - 4:06:13 PM
Last modification on : Saturday, January 15, 2022 - 3:14:57 AM
Contributor : Elisabeth Martin Connect in order to contact the contributor
Submitted on : Monday, September 21, 2009 - 4:06:13 PM
Last modification on : Saturday, January 15, 2022 - 3:14:57 AM
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