Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power

We analyze the narrowband terahertz emission process occurring from electron bunches passing in a bending magnet, after a laser-induced sinusoidal modulation has been performed. In particular, we focus on experimental tunability curves, and power scalings with current and laser power. Theoretically,...

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Main Authors: C. Evain, C. Szwaj, S. Bielawski, M. Hosaka, Y. Takashima, M. Shimada, S. Kimura, M. Katoh, A. Mochihashi, T. Takahashi, T. Hara
Format: Article
Language:English
Published: American Physical Society 2010-09-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.13.090703
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author C. Evain
C. Szwaj
S. Bielawski
M. Hosaka
Y. Takashima
M. Shimada
S. Kimura
M. Katoh
A. Mochihashi
T. Takahashi
T. Hara
author_facet C. Evain
C. Szwaj
S. Bielawski
M. Hosaka
Y. Takashima
M. Shimada
S. Kimura
M. Katoh
A. Mochihashi
T. Takahashi
T. Hara
author_sort C. Evain
collection DOAJ
description We analyze the narrowband terahertz emission process occurring from electron bunches passing in a bending magnet, after a laser-induced sinusoidal modulation has been performed. In particular, we focus on experimental tunability curves, and power scalings with current and laser power. Theoretically, we simplify the problem formulation using the slowly varying envelope approximation. At low powers, the scaling with laser power appears to be quadratic, and analytical expressions for the tuning curves are obtained. Emission at first passage in the bending magnet, and after one full turn in the storage ring, are considered both experimentally and theoretically. The experiments are performed on the UVSOR-II storage ring.
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spelling doaj.art-2b306e044ac6400eb1948540ebe0be2c2022-12-21T19:02:25ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022010-09-0113909070310.1103/PhysRevSTAB.13.090703Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser powerC. EvainC. SzwajS. BielawskiM. HosakaY. TakashimaM. ShimadaS. KimuraM. KatohA. MochihashiT. TakahashiT. HaraWe analyze the narrowband terahertz emission process occurring from electron bunches passing in a bending magnet, after a laser-induced sinusoidal modulation has been performed. In particular, we focus on experimental tunability curves, and power scalings with current and laser power. Theoretically, we simplify the problem formulation using the slowly varying envelope approximation. At low powers, the scaling with laser power appears to be quadratic, and analytical expressions for the tuning curves are obtained. Emission at first passage in the bending magnet, and after one full turn in the storage ring, are considered both experimentally and theoretically. The experiments are performed on the UVSOR-II storage ring.http://doi.org/10.1103/PhysRevSTAB.13.090703
spellingShingle C. Evain
C. Szwaj
S. Bielawski
M. Hosaka
Y. Takashima
M. Shimada
S. Kimura
M. Katoh
A. Mochihashi
T. Takahashi
T. Hara
Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power
Physical Review Special Topics. Accelerators and Beams
title Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power
title_full Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power
title_fullStr Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power
title_full_unstemmed Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power
title_short Laser-induced narrowband coherent synchrotron radiation: Efficiency versus frequency and laser power
title_sort laser induced narrowband coherent synchrotron radiation efficiency versus frequency and laser power
url http://doi.org/10.1103/PhysRevSTAB.13.090703
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