3D characterization of individual grains of coexisting high-pressure H2O ice phases by time-domain Brillouin scattering

  title={3D characterization of individual grains of coexisting high-pressure H2O ice phases by time-domain Brillouin scattering},
  author={Sathyan Sandeep and Th{\'e}o Thr{\'e}ard and Elton de Lima Savi and Nikolay Chigarev and Alain D. F. Bulou and Vincent Tournat and Andreas Zerr and Vitalyi E. Gusev and Samuel Raetz},
  journal={Journal of Applied Physics},
Time-domain Brillouin scattering uses ultrashort laser pulses to generate coherent acoustic pulses of picoseconds duration in a solid sample and to follow their propagation in order to image material inhomogeneities with sub-optical depth resolution. The width of the acoustic pulse limits the spatial resolution of the technique along the direction of the pulse propagation to less than several tens of nanometres. Thus, the time-domain Brillouin scattering outperforms axial resolution of the… Expand

Figures and Tables from this paper

Photoacoustic 3-D imaging of polycrystalline microstructure improved with transverse acoustic waves
A buried inclined interface between differently oriented grains is identified by monitoring changes in amplitude (phase) of the portion of the signal associated with transverse (longitudinal) waves, proving the sensitivity of the laser ultrasonic method to image inclined boundaries. Expand
Theory of time-domain Brillouin scattering for probe light and acoustic beams propagating at an arbitrary relative angle: Application to acousto-optic interaction near material interfaces
A simple theory is developed for an interpretation of the time-domain Brillouin scattering experiments where the coherent acoustic pulse and the probe light pulse beams are propagating at an angle toExpand


Revealing sub-μm and μm-scale textures in H2O ice at megabar pressures by time-domain Brillouin scattering
The achieved imaging of ice in depth and in one of the lateral directions indicates the feasibility of three-dimensional imaging and quantitative characterisation of the acoustical, optical and acousto-optical properties of transparent polycrystalline aggregates in a diamond anvil cell with tens of nanometres in-depth resolution and a lateral spatial resolution controlled by pump laser pulses focusing, which could approach hundreds of nanometricres. Expand
Advances in applications of time-domain Brillouin scattering for nanoscale imaging
Time-domain Brillouin scattering is an all-optical experimental technique based on ultrafast lasers applied for generation and detection of coherent acoustic pulses on time durations of picosecondsExpand
Subsurface Imaging of Grain Microstructure Using Picosecond Ultrasonics
Abstract We report on imaging subsurface grain microstructure using picosecond ultrasonics. This approach relies on elastic anisotropy of crystalline materials where ultrasonic velocity depends onExpand
High resolution 3D imaging of living cells with sub-optical wavelength phonons
The ability to breach the optical diffraction limit to image living cells acoustically promises to bring a new suite of imaging technologies to bear in answering exigent questions in cell biology and biomedicine. Expand
Picosecond laser ultrasonics for imaging of transparent polycrystalline materials compressed to megabar pressures.
Application ofPicosecond laser ultrasonics to polycrystalline elastically anisotropic transparent materials subject to high pressures in a diamond anvil cell reveals their significant texturing/structuring at the spatial scales exceeding dimensions of the individual crystallites. Expand
Nondestructive characterization of polycrystalline 3D microstructure with time-domain Brillouin scattering
Abstract We employ gigahertz frequency ultrasonic waves to non-invasively image grain microstructure in polycrystalline ceria. This technique, termed time-domain Brillouin scattering (TDBS), is aExpand
Thin-film optoacoustic transducers for subcellular Brillouin oscillation imaging of individual biological cells.
The design of the transducers and instrumentation is optimized to overcome the vulnerability of a cell to the exposure of laser light and heat without sacrificing the signal-to-noise ratio and Brillouin frequency images are presented. Expand
Nanoscale noncontact subsurface investigations of mechanical and optical properties of nanoporous low-k material thin film.
This development of a new opto-acoustical nanometrology paves the way for in-depth inspection and for subsurface nanoscale imaging of inorganic- and organic-based materials. Expand
Confocal Brillouin microscopy for three-dimensional mechanical imaging.
A confocal Brillouin microscope based on a fully parallel spectrometer-a virtually imaged phased array-that improves the detection efficiency by nearly 100-fold over previous approaches is demonstrated and the first cross-sectional BrillouIn imaging based on elastic properties as the contrast mechanism is shown. Expand
Imaging grain microstructure in a model ceramic energy material with optically generated coherent acoustic phonons
The authors extend the pump-probe method to obtain information on the orientation of individual crystallites by studying influence of probe beam polarization on detected signal amplitude to image grain microstructure in ceria. Expand