Ethanol-assisted ablation of silicon and germanium by temporally shaped femtosecond pulses

Guangming Zhang, Xin Li, Lan Jiang, Xuesong Shi, Kaihu Zhang, Qiang Cao, Yongfeng Lu

Research output: Contribution to journalArticle

Abstract

A surprising phenomenon can be discovered by using femtosecond double-pulse ablation of silicon and germanium in ethanol. The ablation areas present an oscillation increase phenomenon when the pulse delay increases from 200 fs to 1 ps in the fluence range of 0.5-0.6 J/cm2. In contrast, the ablation areas exhibit an oscillation decrease phenomenon as the pulse delay increases when the laser fluence F < 0.5 J/cm2, which is consistent with the results of the experiment in air. It is considered that the adjustment of the photon-electron coupling efficiency by pulse train technology plays an important role in the ablation process.

Original languageEnglish (US)
Article number041402
JournalChinese Optics Letters
Volume13
Issue number4
DOIs
StatePublished - Apr 10 2015

Fingerprint

Germanium
Silicon
Ablation
Ultrashort pulses
ablation
germanium
Ethanol
ethyl alcohol
silicon
pulses
fluence
oscillations
Laser pulses
Photons
adjusting
Electrons
Lasers
air
photons
Air

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Ethanol-assisted ablation of silicon and germanium by temporally shaped femtosecond pulses. / Zhang, Guangming; Li, Xin; Jiang, Lan; Shi, Xuesong; Zhang, Kaihu; Cao, Qiang; Lu, Yongfeng.

In: Chinese Optics Letters, Vol. 13, No. 4, 041402, 10.04.2015.

Research output: Contribution to journalArticle

Zhang, Guangming ; Li, Xin ; Jiang, Lan ; Shi, Xuesong ; Zhang, Kaihu ; Cao, Qiang ; Lu, Yongfeng. / Ethanol-assisted ablation of silicon and germanium by temporally shaped femtosecond pulses. In: Chinese Optics Letters. 2015 ; Vol. 13, No. 4.
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