http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Hongji Qi (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Fabry-Perot Filter Constructed with Anisotropic Space Layer and Isotropic Mirrors
Hongji Qi,Yongqiang Hou,Kui Yi,Jianda Shao 한국광학회 2013 Current Optics and Photonics Vol.17 No.1
In this study a new design concept of the Fabry-Perot filter, constructed with an anisotropic space layer and a couple of isotropic mirrors, was proposed based on the Maxwell equations and the characteristic matrix method. The single- and double-cavity Fabry-Perot filters were designed, and their optical properties were investigated with a developed software package. In addition, the dependence of the transmittance and phase shift for two orthogonal polarization states on the column angle of the anisotropic space layer and the incidence angle were discussed. We demonstrated that the polarization state of electromagnetic waves and phase shifts can be modulated by exploiting an anisotropic space layer in a polarization F-P filter. Birefringence of the anisotropic space layer provided a sophisticated phase modulation with varied incidence angles over a broad range, resulting in a wide-angle phase shift. This new concept would be useful for designing optical components with isotropic and anisotropic materials.
-
Laser-induced Damage of Multilayer Oxide Coatings at 248 nm
Chaoyang Wei,Hongbo He,Hongji Qi,Kui Yi,Zhengxiu Fan 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.58 No.42
Al_2O_3/SiO_2 and HfO_2/SiO_2 high reflection coatings for 248 nm were deposited with optimized parameters to try to elucidate the laser-induced damage mechanisms of oxide coatings for 248 nm irradiation. Qualitative differences in the laser-induced damage thresholds (LIDTs) and in the surface morphologies indicated that the dominant damage mechanisms were different for the two multilayers. The damage morphology information showed that the damage was induced by defects for the HfO_2/SiO_2 multilayers whereas the damage for Al_2O_3/SiO_2 multilayers displayed intrinsic damage characteristics that were dramatically different from those of HfO_2/SiO_2 multilayers. Quantitative analyse of the above two kinds of coatings were done. The results showed that the damage to the HfO_2/SiO_2 multilayers can be well explained by a defect model. As for the damage to the Al_2O_3/SiO_2 multilayer, a quantitative analysis based on electron production via multiphoton ionization (MPI) and impact ionization (II) was in good agreement with the assumption that the damage to the Al_2O_3/SiO_2 multilayers was induced by intrinsic nonlinear absorption.
DBpia
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
