Thermal distortion of wavefront in high-intensity-laser system for inverse Compton X-ray generation

Hiroki Ishikawa; Shinji Ito; Akira Endo; Tatsuya Yanagida; Kenji Torizuka; Fumio Sakai; Masakazu Washio

doi:10.1117/12.478976

Thermal distortion of wavefront in high-intensity-laser system for inverse Compton X-ray generation

Hiroki Ishikawa^*, Shinji Ito, Akira Endo, Tatsuya Yanagida, Kenji Torizuka, Fumio Sakai, Masakazu Washio

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

We have developed a stable 7 terawatt (TW) (168 mJ per pulse, 24 fs pulse duration) Ti: sapphire laser system operating at 50 Hz for a generation of femtosecond X-ray pulses by inverse Compton scattering. We corrected the wavefront distortion of these high intensity laser pulses with adaptive optics using a Shack-Hartmann type wavefront sensor and a deformable mirror. We have also started developing a compact all-solid-state Yb: Sr₅(PO ₄)₃F (Yb: S-FAP) laser system to realize a practical X-ray pulse generation system. We measured thermal lensing induced in Yb: S-FAP crystal for design of a high-energy regenerative amplifier. In addition, we measured wavefront of the amplified pulses in the Yb: S-FAP regenerative amplifier with the wavefront sensor.

Original language	English
Pages (from-to)	50-57
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4969
DOIs	https://doi.org/10.1117/12.478976
Publication status	Published - 2003 Nov 20
Event	Laser Resonators and Beam Control VI - San Jose, CA, United States Duration: 2003 Jan 28 → 2003 Jan 30

Keywords

Diode pumped Yb: S-FAP
High-intensity laser
Thermal distortion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.478976

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title = "Thermal distortion of wavefront in high-intensity-laser system for inverse Compton X-ray generation",

abstract = "We have developed a stable 7 terawatt (TW) (168 mJ per pulse, 24 fs pulse duration) Ti: sapphire laser system operating at 50 Hz for a generation of femtosecond X-ray pulses by inverse Compton scattering. We corrected the wavefront distortion of these high intensity laser pulses with adaptive optics using a Shack-Hartmann type wavefront sensor and a deformable mirror. We have also started developing a compact all-solid-state Yb: Sr5(PO 4)3F (Yb: S-FAP) laser system to realize a practical X-ray pulse generation system. We measured thermal lensing induced in Yb: S-FAP crystal for design of a high-energy regenerative amplifier. In addition, we measured wavefront of the amplified pulses in the Yb: S-FAP regenerative amplifier with the wavefront sensor.",

keywords = "Diode pumped Yb: S-FAP, High-intensity laser, Thermal distortion",

author = "Hiroki Ishikawa and Shinji Ito and Akira Endo and Tatsuya Yanagida and Kenji Torizuka and Fumio Sakai and Masakazu Washio",

year = "2003",

month = nov,

day = "20",

doi = "10.1117/12.478976",

language = "English",

volume = "4969",

pages = "50--57",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "Laser Resonators and Beam Control VI ; Conference date: 28-01-2003 Through 30-01-2003",

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TY - JOUR

T1 - Thermal distortion of wavefront in high-intensity-laser system for inverse Compton X-ray generation

AU - Ishikawa, Hiroki

AU - Ito, Shinji

AU - Endo, Akira

AU - Yanagida, Tatsuya

AU - Torizuka, Kenji

AU - Sakai, Fumio

AU - Washio, Masakazu

PY - 2003/11/20

Y1 - 2003/11/20

N2 - We have developed a stable 7 terawatt (TW) (168 mJ per pulse, 24 fs pulse duration) Ti: sapphire laser system operating at 50 Hz for a generation of femtosecond X-ray pulses by inverse Compton scattering. We corrected the wavefront distortion of these high intensity laser pulses with adaptive optics using a Shack-Hartmann type wavefront sensor and a deformable mirror. We have also started developing a compact all-solid-state Yb: Sr5(PO 4)3F (Yb: S-FAP) laser system to realize a practical X-ray pulse generation system. We measured thermal lensing induced in Yb: S-FAP crystal for design of a high-energy regenerative amplifier. In addition, we measured wavefront of the amplified pulses in the Yb: S-FAP regenerative amplifier with the wavefront sensor.

AB - We have developed a stable 7 terawatt (TW) (168 mJ per pulse, 24 fs pulse duration) Ti: sapphire laser system operating at 50 Hz for a generation of femtosecond X-ray pulses by inverse Compton scattering. We corrected the wavefront distortion of these high intensity laser pulses with adaptive optics using a Shack-Hartmann type wavefront sensor and a deformable mirror. We have also started developing a compact all-solid-state Yb: Sr5(PO 4)3F (Yb: S-FAP) laser system to realize a practical X-ray pulse generation system. We measured thermal lensing induced in Yb: S-FAP crystal for design of a high-energy regenerative amplifier. In addition, we measured wavefront of the amplified pulses in the Yb: S-FAP regenerative amplifier with the wavefront sensor.

KW - Diode pumped Yb: S-FAP

KW - High-intensity laser

KW - Thermal distortion

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DO - 10.1117/12.478976

M3 - Conference article

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SN - 0277-786X

VL - 4969

SP - 50

EP - 57

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Laser Resonators and Beam Control VI

Y2 - 28 January 2003 through 30 January 2003

ER -

Thermal distortion of wavefront in high-intensity-laser system for inverse Compton X-ray generation

Abstract

Keywords

ASJC Scopus subject areas

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