Picosecond ultrasonics time resolved spectroscopy using a photonic crystal fiber.
We present a broadband picosecond ultrasonics time resolved spectroscopy. Detection of picosecond coherent acoustic phonons using a wavelength continuum generation in a photonic crystal fiber (PCF) with femtosecond laser pulses is developed. Measurements are performed for selected wavelengths of a broad wavelength probe pulse within a bandwidth of 250 nm with an 825 nm center wavelength on two samples made of tungsten and of gallium arsenide.
Rossignol
C
C
Laboratoire de Mécanique Physique, UMR CNRS 5469, Université Bordeaux 1, 351 cours de la Libération, 33405 Talence, France. c.rossignol@lmp.u-bordeaux1.fr <c.rossignol@lmp.u-bordeaux1.fr>
Rampnoux
J M
JM
Dehoux
T
T
Dilhaire
S
S
Audoin
B
B