Frequency-resolved optical gating system with a tellurium crystal for characterizing free-electron lasers in the wavelength range of 10-30 μm

Hokuto Iijima; Ryoji Nagai; Nobuyuki Nishimori; Ryoichi Hajima; Eisuke J. Minehara

doi:10.1063/1.3265318

Frequency-resolved optical gating system with a tellurium crystal for characterizing free-electron lasers in the wavelength range of 10-30 μm

Hokuto Iijima, Ryoji Nagai, Nobuyuki Nishimori, Ryoichi Hajima, Eisuke J. Minehara

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

4 Citations (Scopus)

Abstract

A second-harmonic generation frequency-resolved optical gating (SHG-FROG) system has been developed for the complete characterization of laser pulses in the wavelength range of 10-30 μm. A tellurium crystal is used so that spectrally resolved autocorrelation signals with a good signal-to-noise ratio are obtained. Pulses (wavelength ∼22 μm) generated from a free-electron laser are measured by the SHG-FROG system. The SHG intensity profile and the spectrum obtained by FROG measurements are well consistent with those of independent measurements of the pulse length and spectrum. The pulse duration and spectral width determined from the FROG trace are 0.6 ps and 5.2 THz at full width half maximum, respectively.

Original language	English
Article number	123106
Journal	Review of Scientific Instruments
Volume	80
Issue number	12
DOIs	https://doi.org/10.1063/1.3265318
Publication status	Published - 2009

ASJC Scopus subject areas

Instrumentation

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10.1063/1.3265318

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title = "Frequency-resolved optical gating system with a tellurium crystal for characterizing free-electron lasers in the wavelength range of 10-30 μm",

abstract = "A second-harmonic generation frequency-resolved optical gating (SHG-FROG) system has been developed for the complete characterization of laser pulses in the wavelength range of 10-30 μm. A tellurium crystal is used so that spectrally resolved autocorrelation signals with a good signal-to-noise ratio are obtained. Pulses (wavelength ∼22 μm) generated from a free-electron laser are measured by the SHG-FROG system. The SHG intensity profile and the spectrum obtained by FROG measurements are well consistent with those of independent measurements of the pulse length and spectrum. The pulse duration and spectral width determined from the FROG trace are 0.6 ps and 5.2 THz at full width half maximum, respectively.",

author = "Hokuto Iijima and Ryoji Nagai and Nobuyuki Nishimori and Ryoichi Hajima and Minehara, {Eisuke J.}",

note = "Funding Information: This research was partially supported by a Grant-in-Aid for Young Scientists (B) Grant No. 18740265 from Japan Society for the Promotion of Science.",

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doi = "10.1063/1.3265318",

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T1 - Frequency-resolved optical gating system with a tellurium crystal for characterizing free-electron lasers in the wavelength range of 10-30 μm

AU - Iijima, Hokuto

AU - Nagai, Ryoji

AU - Nishimori, Nobuyuki

AU - Hajima, Ryoichi

AU - Minehara, Eisuke J.

N1 - Funding Information: This research was partially supported by a Grant-in-Aid for Young Scientists (B) Grant No. 18740265 from Japan Society for the Promotion of Science.

PY - 2009

Y1 - 2009

N2 - A second-harmonic generation frequency-resolved optical gating (SHG-FROG) system has been developed for the complete characterization of laser pulses in the wavelength range of 10-30 μm. A tellurium crystal is used so that spectrally resolved autocorrelation signals with a good signal-to-noise ratio are obtained. Pulses (wavelength ∼22 μm) generated from a free-electron laser are measured by the SHG-FROG system. The SHG intensity profile and the spectrum obtained by FROG measurements are well consistent with those of independent measurements of the pulse length and spectrum. The pulse duration and spectral width determined from the FROG trace are 0.6 ps and 5.2 THz at full width half maximum, respectively.

AB - A second-harmonic generation frequency-resolved optical gating (SHG-FROG) system has been developed for the complete characterization of laser pulses in the wavelength range of 10-30 μm. A tellurium crystal is used so that spectrally resolved autocorrelation signals with a good signal-to-noise ratio are obtained. Pulses (wavelength ∼22 μm) generated from a free-electron laser are measured by the SHG-FROG system. The SHG intensity profile and the spectrum obtained by FROG measurements are well consistent with those of independent measurements of the pulse length and spectrum. The pulse duration and spectral width determined from the FROG trace are 0.6 ps and 5.2 THz at full width half maximum, respectively.

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JO - Review of Scientific Instruments

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ER -

Frequency-resolved optical gating system with a tellurium crystal for characterizing free-electron lasers in the wavelength range of 10-30 μm

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