Coherent phonon dynamics in diamond detected via multiphoton absorption
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-10-14 |
| Journal | Applied Physics Letters |
| Authors | Martin Zukerstein, F. TrojĆ”nek, Bohuslav Rezek, Z. Å obĆ”Å, Martin KozĆ”k |
| Institutions | Czech Academy of Sciences, Institute of Physics, Charles University |
| Citations | 10 |
Abstract
Section titled āAbstractāCoupling between ultrafast lattice dynamics and electronic polarization becomes increasingly important for generating terahertz frequency combs, monitor atomic potential landscapes, or high-speed information processing. Here, we show that the carrier population excited by multiphoton (5-photon) absorption in diamond crystal can be controlled at terahertz frequencies by coherent lattice vibrations-phonons. We introduce and compare two independent methods for direct monitoring of coherent phonon dynamics in diamond by using photoluminescence or photocurrent measurements on femtosecond time scale. We observe a strong signal enhancement compared to standard techniques due to transmission geometry and high-order nonlinearity of optical carrier generation.