Femtosecond laser ablation of sapphire: Time-of-flight analysis of ablation plume

H. Varel; M. Wähmer; A. Rosenfeld; D. Ashkenasi; E. E.B. Campbell

doi:10.1016/S0169-4332(97)00622-3

Femtosecond laser ablation of sapphire: Time-of-flight analysis of ablation plume

H. Varel, M. Wähmer, A. Rosenfeld, D. Ashkenasi, E. E.B. Campbell

Department of Physics

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

104 Scopus citations

Abstract

Time-of-flight mass spectrometry has been used to investigate the mass and velocity distributions of positive ions produced on laser ablation of sapphire with ultrashort (200 fs) laser pulses at a wavelength of 790 nm. Aluminium and oxygen ions were observed with the proportion of singly and doubly charged oxygen ions increasing with increasing number of laser shots for a given laser fluence. The ions have extremely high kinetic energies which is attributed to Coulomb explosion from charged defect sites.

Original language	English
Pages (from-to)	128-133
Number of pages	6
Journal	Applied Surface Science
Volume	127-129
DOIs	https://doi.org/10.1016/S0169-4332(97)00622-3
State	Published - May 1998

Bibliographical note

Funding Information:
This work was financially supported by the BMBF (13N6591, PROBE I).

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title = "Femtosecond laser ablation of sapphire: Time-of-flight analysis of ablation plume",

abstract = "Time-of-flight mass spectrometry has been used to investigate the mass and velocity distributions of positive ions produced on laser ablation of sapphire with ultrashort (200 fs) laser pulses at a wavelength of 790 nm. Aluminium and oxygen ions were observed with the proportion of singly and doubly charged oxygen ions increasing with increasing number of laser shots for a given laser fluence. The ions have extremely high kinetic energies which is attributed to Coulomb explosion from charged defect sites.",

author = "H. Varel and M. W{\"a}hmer and A. Rosenfeld and D. Ashkenasi and Campbell, {E. E.B.}",

note = "Funding Information: This work was financially supported by the BMBF (13N6591, PROBE I).",

year = "1998",

month = may,

doi = "10.1016/S0169-4332(97)00622-3",

language = "English",

volume = "127-129",

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journal = "Applied Surface Science",

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T1 - Femtosecond laser ablation of sapphire

T2 - Time-of-flight analysis of ablation plume

AU - Varel, H.

AU - Wähmer, M.

AU - Rosenfeld, A.

AU - Ashkenasi, D.

AU - Campbell, E. E.B.

N1 - Funding Information: This work was financially supported by the BMBF (13N6591, PROBE I).

PY - 1998/5

Y1 - 1998/5

N2 - Time-of-flight mass spectrometry has been used to investigate the mass and velocity distributions of positive ions produced on laser ablation of sapphire with ultrashort (200 fs) laser pulses at a wavelength of 790 nm. Aluminium and oxygen ions were observed with the proportion of singly and doubly charged oxygen ions increasing with increasing number of laser shots for a given laser fluence. The ions have extremely high kinetic energies which is attributed to Coulomb explosion from charged defect sites.

AB - Time-of-flight mass spectrometry has been used to investigate the mass and velocity distributions of positive ions produced on laser ablation of sapphire with ultrashort (200 fs) laser pulses at a wavelength of 790 nm. Aluminium and oxygen ions were observed with the proportion of singly and doubly charged oxygen ions increasing with increasing number of laser shots for a given laser fluence. The ions have extremely high kinetic energies which is attributed to Coulomb explosion from charged defect sites.

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U2 - 10.1016/S0169-4332(97)00622-3

DO - 10.1016/S0169-4332(97)00622-3

M3 - Article

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VL - 127-129

SP - 128

EP - 133

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Femtosecond laser ablation of sapphire: Time-of-flight analysis of ablation plume

Abstract

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