Time-resolved reflectivity evolution of transparent dielectrics under femtosecond-laser pulse excitation

Shi Zhen Xu; Tian Qing Jia; Hai Yi Sun; Xiao Xi Li; Dong Hai Feng; Cheng Bin Li; Xiao Feng Wang; Jian Rong Qiu; Zhi Zhan Xu

Time-resolved reflectivity evolution of transparent dielectrics under femtosecond-laser pulse excitation

Shi Zhen Xu^*, Tian Qing Jia, Hai Yi Sun, Xiao Xi Li, Dong Hai Feng, Cheng Bin Li, Xiao Feng Wang, Jian Rong Qiu, Zhi Zhan Xu

^*Corresponding author for this work

CAS - Shanghai Institute of Optics and Fine Mechanics

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

1 Scopus citations

Abstract

Using the 800-nm-pump and 400-nm-probe technique, the dynamics of the electron excitation and relaxation in CaF₂ and MgO crystals was studied. A coupling model including both the multiphoton ionization (MPI) and the impact ionization (II) was applied to investigate laser propagation and conduction band electron production. The evolution of reflectivity was calculated, and the calculated results agree with the experimental results. The results indicate that both MPI and II play important roles in the generation of conduction band electrons. The relaxation dynamics was also discussed.

Original language	English
Pages (from-to)	53-56
Number of pages	4
Journal	Zhongguo Jiguang/Chinese Journal of Lasers
Volume	33
Issue number	1
State	Published - Jan 2006
Externally published	Yes

Keywords

Dielectrics
Femtosecond laser
Time-resolved reflectivity
Ultrafast dynamics
Ultrafast optics

Cite this

@article{f28b4e4b11f94574b3bc3cfe66f990d0,

title = "Time-resolved reflectivity evolution of transparent dielectrics under femtosecond-laser pulse excitation",

abstract = "Using the 800-nm-pump and 400-nm-probe technique, the dynamics of the electron excitation and relaxation in CaF2 and MgO crystals was studied. A coupling model including both the multiphoton ionization (MPI) and the impact ionization (II) was applied to investigate laser propagation and conduction band electron production. The evolution of reflectivity was calculated, and the calculated results agree with the experimental results. The results indicate that both MPI and II play important roles in the generation of conduction band electrons. The relaxation dynamics was also discussed.",

keywords = "Dielectrics, Femtosecond laser, Time-resolved reflectivity, Ultrafast dynamics, Ultrafast optics",

author = "Xu, \{Shi Zhen\} and Jia, \{Tian Qing\} and Sun, \{Hai Yi\} and Li, \{Xiao Xi\} and Feng, \{Dong Hai\} and Li, \{Cheng Bin\} and Wang, \{Xiao Feng\} and Qiu, \{Jian Rong\} and Xu, \{Zhi Zhan\}",

year = "2006",

month = jan,

language = "英语",

volume = "33",

pages = "53--56",

journal = "Zhongguo Jiguang/Chinese Journal of Lasers",

issn = "0258-7025",

publisher = "Science Press ",

number = "1",

}

TY - JOUR

T1 - Time-resolved reflectivity evolution of transparent dielectrics under femtosecond-laser pulse excitation

AU - Xu, Shi Zhen

AU - Jia, Tian Qing

AU - Sun, Hai Yi

AU - Li, Xiao Xi

AU - Feng, Dong Hai

AU - Li, Cheng Bin

AU - Wang, Xiao Feng

AU - Qiu, Jian Rong

AU - Xu, Zhi Zhan

PY - 2006/1

Y1 - 2006/1

N2 - Using the 800-nm-pump and 400-nm-probe technique, the dynamics of the electron excitation and relaxation in CaF2 and MgO crystals was studied. A coupling model including both the multiphoton ionization (MPI) and the impact ionization (II) was applied to investigate laser propagation and conduction band electron production. The evolution of reflectivity was calculated, and the calculated results agree with the experimental results. The results indicate that both MPI and II play important roles in the generation of conduction band electrons. The relaxation dynamics was also discussed.

AB - Using the 800-nm-pump and 400-nm-probe technique, the dynamics of the electron excitation and relaxation in CaF2 and MgO crystals was studied. A coupling model including both the multiphoton ionization (MPI) and the impact ionization (II) was applied to investigate laser propagation and conduction band electron production. The evolution of reflectivity was calculated, and the calculated results agree with the experimental results. The results indicate that both MPI and II play important roles in the generation of conduction band electrons. The relaxation dynamics was also discussed.

KW - Dielectrics

KW - Femtosecond laser

KW - Time-resolved reflectivity

KW - Ultrafast dynamics

KW - Ultrafast optics

UR - https://www.scopus.com/pages/publications/33645020897

M3 - 文章

AN - SCOPUS:33645020897

SN - 0258-7025

VL - 33

SP - 53

EP - 56

JO - Zhongguo Jiguang/Chinese Journal of Lasers

JF - Zhongguo Jiguang/Chinese Journal of Lasers

IS - 1

ER -

Time-resolved reflectivity evolution of transparent dielectrics under femtosecond-laser pulse excitation

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Keywords

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