Picosecond ultrasonics with a free-running dual-comb laser
arXiv:2109.00457 · doi:10.1364/OE.440856
Abstract
We present a free-running 80-MHz dual-comb polarization-multiplexed solid-state laser which delivers 1.8 W of average power with 110-fs pulse duration per comb. With a high-sensitivity pump-probe setup, we apply this free-running dual-comb laser to picosecond ultrasonic measurements. The ultrasonic signatures in a semiconductor multi-quantum-well structure originating from the quantum wells and superlattice regions are revealed and discussed. We further demonstrate ultrasonic measurements on a thin-film metalized sample and compare these measurements to ones obtained with a pair of locked femtosecond lasers. Our data show that a free-running dual-comb laser is well-suited for picosecond ultrasonic measurements and thus it offers a significant reduction in complexity and cost for this widely adopted non-destructive testing technique.
References in corpus (9)
- Adaptive real-time dual-comb spectroscopy
- Lifetimes of Confined Acoustic Phonons in Ultra-Thin Silicon Membranes
- Anderson photon-phonon co-localization in certain random superlattices
- Optomechanical properties of GaAs/AlAs micropillar resonators operating in the 18 GHz range
- Direct Observation of Propagating Gigahertz Coherent Guided Acoustic Phonons in Free Standing Single Copper Nanowires
- Ultrafast Acousto-Plasmonics in Gold Nanoparticles Superlattice
- Spatio-Temporal Imaging of the Acoustic Field Emitted by a Single Copper Nanowire Copper Nanowires Fabrication
- Coherent generation and detection of acoustic phonons in topological nanocavities
- Determination of Nanoscale Mechanical Properties of Polymers via Plasmonic Nanoantennas
Cited by in corpus (4)
- Spatially multiplexed single-cavity dual-comb laser
- Coherently averaged dual-comb spectroscopy with a low-noise and high-power free-running gigahertz dual-comb laser
- Timing jitter characterization of free-running dual-comb laser with sub-attosecond resolution using optical heterodyne detection
- Dispersive coherent Brillouin scattering spectroscopy