38 citations · 191 across the 10 of their papers we have counts for
8 papers · 1 filter
Photo-Induced Ultrafast Symmetry Switch in SnSe
Yadong Han, Junhong Yu, Hang Zhang +8
Layered tin selenide (SnSe) has recently emerged as a high-performance thermoelectric material with the current record for the figure of merit (ZT) observed in the high-temperature…
Temperature effect on the coupling between coherent longitudinal phonons and plasmons in n- and p-type GaAs
Jianbo Hu, Hang Zhang, Yi Sun +2
The coupling between longitudinal optical (LO) phonons and plasmons plays a fundamental role in determining the performance of doped semiconductor devices. In this work, we report…
Complex structural dynamics of bismuth under laser-driven compression
Jianbo Hu, Kouhei Ichiyanagi, Tomoaki Doki +13
With the aid of nanosecond time-resolved X-ray diffraction techniques, we have explored the complex structural dynamics of bismuth under laser-driven compression. The results demon…
Sound velocity measurements of tantalum under shock compression in the 10-110 GPa range
Jianbo Hu, Chengda Dai, Yuying Yu +6
The high-pressure melting curve of tantalum (Ta) has been the center of a long-standing controversy. Sound velocities along the Hugoniot curve are expected to help in understanding…
Reversible phase transition in laser-shocked 3Y-TZP ceramics observed via nanosecond time-resolved X-ray diffraction
Jianbo Hu, Kouhei Ichiyanagi, Hiroshi Takahashi +8
The high-pressure phase stability of the metastable tetragonal zirconia is still under debate. The transition dynamics of shocked Y2O3 (3 mol%) stabilized tetragonal zirconia ceram…
Delayed formation of coherent LO phonon-plasmon coupled modes in n-type and p-type GaAs measured using a femtosecond coherent control technique
Jianbo Hu, Oleg V. Misochko, Arihiro Goto +1
Coherent control experiments using a pair of collinear femtosecond laser pulses have been carried out to manipulate longitudinal optical (LO) phonon-plasmon coupled (LOPC) modes in…
Direct observation of two-phonon bound states in ZnTe
Jianbo Hu, Oleg V. Misochko, Kazutaka G. Nakamura
A coherent two-phonon bound state has been impulsively generated in ZnTe(110) via second-order Raman scattering in the time domain for the first time. The two-phonon bound state, c…
Controlling phonon squeezing and correlation via one- and two-phonon interference
Oleg V. Misochko, Jianbo Hu, Kazutaka G. Nakamura
When ultrafast laser pulse strikes the crystal with a van Hove singularity in the phonon density of states, it can create a pair of anti-correlated in wave-vector acoustic phonons.…