Resonant effects in nonlinear photon absorption during femtosecond laser ablation of Nd-doped silicate glass

Yadong Zhao; Lan Jiang; Juqiang Fang; Qianghua Chen; Xiaowei Li; Yongfeng Lu

doi:10.1364/AO.51.007039

Resonant effects in nonlinear photon absorption during femtosecond laser ablation of Nd-doped silicate glass

Yadong Zhao, Lan Jiang, Juqiang Fang, Qianghua Chen, Xiaowei Li, Yongfeng Lu

Electrical & Computer Engineering

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

5 Scopus citations

Abstract

This study investigates the resonant effects in nonlinear photon absorption in femtosecond laser ablation of Nd-doped silicate glass (Nd:glass). During the femtosecond laser ablation process, the resonant ablation threshold fluence is decreased by up to 40% compared with that of ordinary ablation. However, it is found that the resonant effect is closely related with laser intensity, and lower laser intensities are required to achieve a significant enhancement. When the intensity is lower than 2.28 × 10¹⁴ W/cm² at which multiphoton ionization dominates, resonant effect is enhanced by a factor of 1.4 to 4.4. When the intensity is higher than 2.28 × 10¹⁴ W/cm², at which intensity tunnel ionization dominates, the resonant effect becomes weak and gradually fades away. It is shown that the resonant effect is still important for multiphoton ionization yet insignificant for tunnel ionization.

Original language	English (US)
Pages (from-to)	7039-7045
Number of pages	7
Journal	Applied optics
Volume	51
Issue number	29
DOIs	https://doi.org/10.1364/AO.51.007039
State	Published - Oct 10 2012

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

Access to Document

10.1364/AO.51.007039

Cite this

@article{f955d7955d4547b0825b99fd7159336a,

title = "Resonant effects in nonlinear photon absorption during femtosecond laser ablation of Nd-doped silicate glass",

abstract = "This study investigates the resonant effects in nonlinear photon absorption in femtosecond laser ablation of Nd-doped silicate glass (Nd:glass). During the femtosecond laser ablation process, the resonant ablation threshold fluence is decreased by up to 40% compared with that of ordinary ablation. However, it is found that the resonant effect is closely related with laser intensity, and lower laser intensities are required to achieve a significant enhancement. When the intensity is lower than 2.28 × 1014 W/cm2 at which multiphoton ionization dominates, resonant effect is enhanced by a factor of 1.4 to 4.4. When the intensity is higher than 2.28 × 1014 W/cm2, at which intensity tunnel ionization dominates, the resonant effect becomes weak and gradually fades away. It is shown that the resonant effect is still important for multiphoton ionization yet insignificant for tunnel ionization.",

author = "Yadong Zhao and Lan Jiang and Juqiang Fang and Qianghua Chen and Xiaowei Li and Yongfeng Lu",

year = "2012",

month = oct,

day = "10",

doi = "10.1364/AO.51.007039",

language = "English (US)",

volume = "51",

pages = "7039--7045",

journal = "Applied optics",

issn = "1559-128X",

publisher = "Optica Publishing Group",

number = "29",

}

TY - JOUR

T1 - Resonant effects in nonlinear photon absorption during femtosecond laser ablation of Nd-doped silicate glass

AU - Zhao, Yadong

AU - Jiang, Lan

AU - Fang, Juqiang

AU - Chen, Qianghua

AU - Li, Xiaowei

AU - Lu, Yongfeng

PY - 2012/10/10

Y1 - 2012/10/10

N2 - This study investigates the resonant effects in nonlinear photon absorption in femtosecond laser ablation of Nd-doped silicate glass (Nd:glass). During the femtosecond laser ablation process, the resonant ablation threshold fluence is decreased by up to 40% compared with that of ordinary ablation. However, it is found that the resonant effect is closely related with laser intensity, and lower laser intensities are required to achieve a significant enhancement. When the intensity is lower than 2.28 × 1014 W/cm2 at which multiphoton ionization dominates, resonant effect is enhanced by a factor of 1.4 to 4.4. When the intensity is higher than 2.28 × 1014 W/cm2, at which intensity tunnel ionization dominates, the resonant effect becomes weak and gradually fades away. It is shown that the resonant effect is still important for multiphoton ionization yet insignificant for tunnel ionization.

AB - This study investigates the resonant effects in nonlinear photon absorption in femtosecond laser ablation of Nd-doped silicate glass (Nd:glass). During the femtosecond laser ablation process, the resonant ablation threshold fluence is decreased by up to 40% compared with that of ordinary ablation. However, it is found that the resonant effect is closely related with laser intensity, and lower laser intensities are required to achieve a significant enhancement. When the intensity is lower than 2.28 × 1014 W/cm2 at which multiphoton ionization dominates, resonant effect is enhanced by a factor of 1.4 to 4.4. When the intensity is higher than 2.28 × 1014 W/cm2, at which intensity tunnel ionization dominates, the resonant effect becomes weak and gradually fades away. It is shown that the resonant effect is still important for multiphoton ionization yet insignificant for tunnel ionization.

UR - http://www.scopus.com/inward/record.url?scp=84867378208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867378208&partnerID=8YFLogxK

U2 - 10.1364/AO.51.007039

DO - 10.1364/AO.51.007039

M3 - Article

C2 - 23052083

AN - SCOPUS:84867378208

SN - 1559-128X

VL - 51

SP - 7039

EP - 7045

JO - Applied optics

JF - Applied optics

IS - 29

ER -

Resonant effects in nonlinear photon absorption during femtosecond laser ablation of Nd-doped silicate glass

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this