Demonstration of an optical enhancement cavity with 10 micron wavelength

Kazuyuki Sakaue, Masakazu Washio, A. Endo

研究成果: Conference contribution

抄録

We have been developing a pulsed-laser optical enhancement cavity for laser-Compton scattering (LCS). LCS can produce high brightness X-ray through the collision between relativistic electrons generated from the accelerator and high power laser photons with a compact facility. In order to increase the number of collisions/sec, high repetition rate accelerator and laser are required. For the laser system, an optical enhancement cavity is the most powerful tool for LCS, thus we have been developing the cavity for storing 1 micron laser pulse. On the other hand, the resulting X-ray energy can be changed by the collision laser wavelength. If we have another optical cavity with different wavelength, the multicolor, quasi-monochromatic, high brightness and compact X-ray source can be realized. Therefore, we started to develop an optical cavity at 10 micron wavelength with CO2 laser. At this wavelength region, the absorption loss is dominant compared with scattering loss. Thus we carefully chose the optical mirrors for enhancement cavity. We demonstrated a more than 200 enhancement factor with 795 finesse optical cavity at 10 micron CO2 laser. Moreover, 2.3 kW storage in the optical cavity was successfully demonstrated. The design of optical cavity, first experimental results and future prospects will be presented at the conference.

本文言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
出版社SPIE
9513
ISBN(印刷版)9781628416343
DOI
出版ステータスPublished - 2015
イベントHigh-Power, High-Energy, and High-Intensity Laser Technology II - Prague, Czech Republic
継続期間: 2015 4 142015 4 15

Other

OtherHigh-Power, High-Energy, and High-Intensity Laser Technology II
国/地域Czech Republic
CityPrague
Period15/4/1415/4/15

ASJC Scopus subject areas

  • 応用数学
  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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