Mapping Phonon-Polariton Nonlinearities with 2D THz-THz-Raman Spectroscopy

HW Lin, G Mead, GA Blake - Physical Review Letters, 2022 - APS
Two-dimensional terahertz-terahertz-Raman spectroscopy can provide insight into the
anharmonicities of low-energy phonon modes—knowledge of which can help develop …

Excitations of the ferroelectric order

P Tang, R Iguchi, K Uchida, GEW Bauer - Physical Review B, 2022 - APS
We identify the bosonic excitations in ferroelectrics that carry electric dipoles from the
phenomenological Landau-Ginzburg-Devonshire theory. The “ferron” quasiparticles emerge …

Terahertz waveform considerations for nonlinearly driving lattice vibrations

BE Knighton, R Tanner Hardy, CL Johnson… - Journal of Applied …, 2019 - pubs.aip.org
High-field terahertz (THz) spectroscopy is applied to nonlinearly excite the E phonon-
polariton vibrational coordinate in LiNbO 3. We compare three THz sources to show that by …

Experimental determination of the interatomic potential in LiNbO3 via ultrafast lattice control

BS Dastrup, JR Hall, JA Johnson - Applied Physics Letters, 2017 - pubs.aip.org
We present a direct comparison between resonant terahertz (THz) and nonresonant
impulsive stimulated Raman scattering (ISRS) excitation of phonon-polaritons in ferroelectric …

Time-of-flight detection of terahertz phonon-polariton

T Luo, B Ilyas, A Hoegen, Y Lee, J Park, JG Park… - Nature …, 2024 - nature.com
A polariton is a fundamental quasiparticle that arises from strong light-matter interaction and
as such has attracted wide scientific and practical interest. When light is strongly coupled to …

High-acquisition-rate single-shot pump-probe measurements using time-stretching method

M Kobayashi, Y Minami, CL Johnson, PD Salmans… - Scientific reports, 2016 - nature.com
Recent advances of ultrafast spectroscopy allow the capture of an entire ultrafast signal
waveform in a single probe shot, which greatly reduces the measurement time and opens …

Terahertz electro-optic sampling in thick ZnTe crystals below the reststrahlen band with a broadband femtosecond laser

B Wu, L Cao, Z Zhang, Q Fu… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
The method of electro-optic (EO) sampling of terahertz (THz) pulses in thick EO crystals
leads to waveform distortions due to effects of phase mismatch, dispersive propagation, and …

Anharmonic phonon-polariton dynamics in ferroelectric LiNbO3 studied with single-shot pump-probe imaging spectroscopy

T Kuribayashi, T Motoyama, Y Arashida… - Journal of Applied …, 2018 - pubs.aip.org
We demonstrate that single-shot pump-probe imaging spectroscopy with an echelon mirror
enables us to disclose the ferroelectric phonon-polariton dynamics across a wide …

Fast-frame single-shot pump-probe spectroscopy with chirped-fiber Bragg gratings

M Kobayashi, Y Arashida, G Yamashita, E Matsubara… - Optics letters, 2018 - opg.optica.org
To acquire single-shot pump-probe waveforms for each laser pulse at a high repetition rate
and high signal-to-noise ratio, we combined the photonic time-stretch technique and time …

Coaxial pump-probe measurement using color-selective double pulses generated by a spatial-light-modulator-based optical pulse shaper

H Takahashi, K Watanabe, K Shigematsu, T Inoue… - Optics …, 2023 - opg.optica.org
Coaxial time-resolved spectroscopy (TRS) based on a pump–probe technique using a color-
selective double pulse (CSDP) is proposed. The CSDP, generated using an optical pulse …