Ultrafast photoexcitation dynamics of ZnTe crystals by femtosecond optical pump-probe and terahertz emission spectroscopy

Jianrui Liu; Xinzhong Chen; Ziheng Yao; Xincheng Wu; Mengkun Liu; Alexey V. Balakin; Alexander P. Shkurinov; Guanjun You; Yiming Zhu

doi:10.1002/mop.32392

Ultrafast photoexcitation dynamics of ZnTe crystals by femtosecond optical pump-probe and terahertz emission spectroscopy

Jianrui Liu
, Xinzhong Chen
, Ziheng Yao
, Xincheng Wu
, Mengkun Liu
, Alexey V. Balakin
, Alexander P. Shkurinov
, Guanjun You
, Yiming Zhu

Physics and Astronomy

University of Shanghai for Science and Technology
Stony Brook University
Lomonosov Moscow State University
RAS
Tongji University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

In this work we perform ultrafast optical pump-optical probe (OPOP) and optical pump terahertz (THz) emission (OPTE) studies on the ultrafast excitation dynamics in <110> ZnTe crystals. Ultrafast two-photon absorption and coherent phonon are revealed in OPOP measurements. Pump-power- and polarization-dependent phonon dynamics are characterized in time-resolved transmission, reflection, and Kerr rotation using OPOP. The phonon polariton-induced THz emission is directly observed in the time domain of OPTE dynamics. It is clear that the transverse optical phonon at ~3.7 THz and phonon polariton at ~2.6 THz are evident in OPOP measurement while OPTE only reveals part of the polariton dynamics.

Original language	English
Pages (from-to)	2656-2661
Number of pages	6
Journal	Microwave and Optical Technology Letters
Volume	62
Issue number	8
DOIs	https://doi.org/10.1002/mop.32392
State	Published - Aug 1 2020

Keywords

pump-probe spectroscopy
terahertz
ultrafast spectroscopy

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10.1002/mop.32392

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title = "Ultrafast photoexcitation dynamics of ZnTe crystals by femtosecond optical pump-probe and terahertz emission spectroscopy",

abstract = "In this work we perform ultrafast optical pump-optical probe (OPOP) and optical pump terahertz (THz) emission (OPTE) studies on the ultrafast excitation dynamics in <110> ZnTe crystals. Ultrafast two-photon absorption and coherent phonon are revealed in OPOP measurements. Pump-power- and polarization-dependent phonon dynamics are characterized in time-resolved transmission, reflection, and Kerr rotation using OPOP. The phonon polariton-induced THz emission is directly observed in the time domain of OPTE dynamics. It is clear that the transverse optical phonon at \textasciitilde{}3.7 THz and phonon polariton at \textasciitilde{}2.6 THz are evident in OPOP measurement while OPTE only reveals part of the polariton dynamics.",

keywords = "pump-probe spectroscopy, terahertz, ultrafast spectroscopy",

author = "Jianrui Liu and Xinzhong Chen and Ziheng Yao and Xincheng Wu and Mengkun Liu and Balakin, \{Alexey V.\} and Shkurinov, \{Alexander P.\} and Guanjun You and Yiming Zhu",

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year = "2020",

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doi = "10.1002/mop.32392",

language = "English",

volume = "62",

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journal = "Microwave and Optical Technology Letters",

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T1 - Ultrafast photoexcitation dynamics of ZnTe crystals by femtosecond optical pump-probe and terahertz emission spectroscopy

AU - Liu, Jianrui

AU - Chen, Xinzhong

AU - Yao, Ziheng

AU - Wu, Xincheng

AU - Liu, Mengkun

AU - Balakin, Alexey V.

AU - Shkurinov, Alexander P.

AU - You, Guanjun

AU - Zhu, Yiming

PY - 2020/8/1

Y1 - 2020/8/1

N2 - In this work we perform ultrafast optical pump-optical probe (OPOP) and optical pump terahertz (THz) emission (OPTE) studies on the ultrafast excitation dynamics in <110> ZnTe crystals. Ultrafast two-photon absorption and coherent phonon are revealed in OPOP measurements. Pump-power- and polarization-dependent phonon dynamics are characterized in time-resolved transmission, reflection, and Kerr rotation using OPOP. The phonon polariton-induced THz emission is directly observed in the time domain of OPTE dynamics. It is clear that the transverse optical phonon at ~3.7 THz and phonon polariton at ~2.6 THz are evident in OPOP measurement while OPTE only reveals part of the polariton dynamics.

AB - In this work we perform ultrafast optical pump-optical probe (OPOP) and optical pump terahertz (THz) emission (OPTE) studies on the ultrafast excitation dynamics in <110> ZnTe crystals. Ultrafast two-photon absorption and coherent phonon are revealed in OPOP measurements. Pump-power- and polarization-dependent phonon dynamics are characterized in time-resolved transmission, reflection, and Kerr rotation using OPOP. The phonon polariton-induced THz emission is directly observed in the time domain of OPTE dynamics. It is clear that the transverse optical phonon at ~3.7 THz and phonon polariton at ~2.6 THz are evident in OPOP measurement while OPTE only reveals part of the polariton dynamics.

KW - pump-probe spectroscopy

KW - terahertz

KW - ultrafast spectroscopy

UR - https://www.scopus.com/pages/publications/85083426682

U2 - 10.1002/mop.32392

DO - 10.1002/mop.32392

M3 - Article

AN - SCOPUS:85083426682

SN - 0895-2477

VL - 62

SP - 2656

EP - 2661

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

IS - 8

ER -

Ultrafast photoexcitation dynamics of ZnTe crystals by femtosecond optical pump-probe and terahertz emission spectroscopy

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Keywords

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