Interferometric detection in picosecond ultrasonics

Perrin, Bernard; Rossignol, C.; Bonello, Bernard; Jeannet, J. C.

doi:10.1016/s0921-4526(98)01479-3

Cited by 75 publications

(42 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These changes are detected by a stabilized Michelson interferometer. 29 A 100 × 100 μm surface imaging of the sample can be done by a scan of the probe objective mounted on a 2D translational motor.…”

Section: Experimental Set-upmentioning

confidence: 99%

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Ayrinhac

Gauthier

Bove

et al. 2014

The Journal of Chemical Physics

View full text Add to dashboard Cite

The acoustic velocity, refractive index, and equation of state of liquid ammonia dihydrate under high pressure and high temperature J. Chem. Phys. 137, 104504 (2012) Ultrafast acoustics measurements on liquid mercury have been performed at high pressure and temperature in a diamond anvil cell using picosecond acoustic interferometry. We extract the density of mercury from adiabatic sound velocities using a numerical iterative procedure. We also report the pressure and temperature dependence of the thermal expansion, isothermal and adiabatic compressibility, bulk modulus, and pressure derivative of the latter up to 7 GPa and 520 K. We finally show that the sound velocity follows a scaling law as a function of density in the overall measured metallic state.

show abstract

Section: Experimental Set-upmentioning

confidence: 99%

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Ayrinhac

Gauthier

Bove

et al. 2014

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

“…In most of the published works, 4,11,12 the photoelastic model, with the crude assumption of a steplike photoelastic coefficient, succeeded in simulating the acoustic phonons induced Raman scattering and the modulation of the optical response observed in time-resolved pump-probe experiments. [15][16][17][18] However, in some cases, for instance in short period superlattices 38 ͑i.e., with layer thicknesses smaller that the acoustic wavelengths͒, or for excitation close to optical resonances, 38,39 strong deviations between measured and calculated Raman intensities are noticed. In these situations the PE profile can strongly deviate from a steplike profile as shown in Figs.…”

Section: Steplike Trapezoidlike and Rbed Profilesmentioning

confidence: 99%

“…It is worthwhile to mention that the PEM is widely used also for the interpretation of the acoustic phonon echoes observed in time-resolved pump-probe experiments. [15][16][17][18] The conclusions of the present work are mainly concerned with Raman-Brillouin scattering but they apply to the time modulation of the optical properties as well.…”

Section: Introductionmentioning

confidence: 99%

Raman-Brillouin light scattering in low-dimensional systems: Photoelastic model versus quantum model

2007

View full text Add to dashboard Cite

Raman-Brillouin scattering by acoustic phonons in a free-standing nanosized silicon film is studied theoretically. Two well-known models are used to describe the inelastic light scattering. ͑i͒ The Raman-Brillouin quantum model in which the electronic states, and their interactions with light and sound, are taken into account explicitly. In this model, an effective Raman-Brillouin electronic density is introduced; it is very useful for analyzing experimental data when a large number of electronic states are involved as intermediate states in the light scattering process. Its spatial distribution depends on the optical excitation and electronic transitions of the system, and is directly connected to spectral features of the Raman-Brillouin scattering. In particular, diagonal and off-diagonal electronic densities are introduced in order to point out that diagonal electronvibration matrix elements are relevant for inelastic light scattering in nanosized objects, whereas only offdiagonal matrix elements are allowed for bulk materials. ͑ii͒ The photoelastic model is compared to the Raman-Brillouin quantum model and is discussed in terms of validity of the steplike profile of the photoelastic coefficient usually adopted in simulations of the Raman-Brillouin spectra of thin films and superlattices. It is shown that the use of trapezoidlike, rather than steplike, profiles of the photoelastic coefficient is more realistic.

show abstract

“…These acoustic perturbations are probed by transient reflectometric or interferometric detection [2].…”

Section: Introductionmentioning

confidence: 99%

Femtosecond laser generation and detection of longitudinal and shear acoustic waves in a sub‐micrometric film

Rossignol¹,

Meri²,

Perton³

et al. 2004

phys. stat. sol. (c)

View full text Add to dashboard Cite

show abstract

Interferometric detection in picosecond ultrasonics

Cited by 75 publications

References 4 publications

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Raman-Brillouin light scattering in low-dimensional systems: Photoelastic model versus quantum model

Femtosecond laser generation and detection of longitudinal and shear acoustic waves in a sub‐micrometric film

Contact Info

Product

Resources

About