Role of polarization-photon coupling in ultrafast terahertz excitation of ferroelectrics
Role of polarization-photon coupling in ultrafast terahertz excitation of ferroelectrics
复制标题
偏振光子耦合在铁电体超快太赫兹激发中的作用
DOI:
10.1103/physrevb.106.l140302
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发表时间:
2022
影响因子:
3.7
通讯作者:
Hu, Jia-Mian
中科院分区:
文献类型:
--
作者:
Zhuang, Shihao;Hu, Jia-Mian
We investigate the role of polarization-photon coupling (specifically, the polarization-oscillation-induced radiation electric field) in the excitation of ferroelectric thin films by an ultrafast terahertz electric field pulse. Analytical formulas are developed to predict how the frequencies and relaxation time of three-dimensional soft mode phonons (intrinsic polarization oscillation) are modulated by the radiation electric field and epitaxial strain. Ultrafast terahertz-pulse-driven excitation of harmonic polarization oscillation in strained single-domain ferroelectric thin film is then simulated using a dynamical phase-field model that considers the coupled strain-polarization-photon dynamics. The frequencies and relaxation time extracted from such numerical simulations agree well with analytical predictions. In relatively thin films, it is predicted that the radiation electric field slightly reduces the frequencies but significantly shortens the relaxation time. These results demonstrate the necessity of considering polarization-photon coupling in understanding and predicting the response of ferroelectric materials to ultrafast pulses of terahertz and higher frequencies.
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DOI:
--
发表时间:
2016-02
期刊:
arXiv: Materials Science
影响因子:
--
作者:
S. Grübel;Jeremy A. Johnson;P. Beaud;C. Dornes;A. Ferrer;V. Haborets;L. Huber;T. Huber;A. Kohutych;T. Kubacka;M. Kubli;S. Mariager;J. Rittmann;Jonathan I. Saari;Y. Vysochanskii;G. Ingold;S. Johnson
通讯作者:
S. Grübel;Jeremy A. Johnson;P. Beaud;C. Dornes;A. Ferrer;V. Haborets;L. Huber;T. Huber;A. Kohutych;T. Kubacka;M. Kubli;S. Mariager;J. Rittmann;Jonathan I. Saari;Y. Vysochanskii;G. Ingold;S. Johnson
影响因子:
19.6
作者:
M. Henstridge;M. Forst;Edward L. Rowe;M. Fechner;A. Cavalleri
通讯作者:
A. Cavalleri
影响因子:
4.4
作者:
Yong Yan;K. Nelson
通讯作者:
Yong Yan;K. Nelson
DOI:
--
发表时间:
1988
期刊:
--
影响因子:
--
作者:
Yong Yan;L. Cheng;K. Nelson
通讯作者:
Yong Yan;L. Cheng;K. Nelson
影响因子:
3.9
作者:
Chen, Long-Qing
通讯作者:
Chen, Long-Qing