Design of optical system for flattop beam shaper based on the measurement of laser induced damage threshold of thin films

被引：5

作者：

Li, Yuyao ^{[1
]}

Wang, Fei ^{[1
]}

Che, Ying ^{[1
]}

Li, Ning ^{[2
]}

机构：

[1] Changchun Univ Sci & Technol, Coll Optoelect Engn, Changchun 130022, Peoples R China

[2] Beihua Univ, Coll Basic Med, Jilin 132013, Peoples R China

来源：

OPTIK | 2014年 / 125卷 / 15期

关键词：

Optical design; Thin films; Damage threshold; Beam shaper; Aspheric; WAVE;

D O I：

10.1016/j.ijleo.2014.01.096

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To solve the problem of large error when measure the laser induced damage threshold of thin films in the case of Gaussian distribution beam induced damage thin films, optical system of flattop beam shaper which is capable of redistributing a beam with a Gaussian profile to a flattop profile was designed with optical design software ZEMAX. The Fermi-Dirac beam model was chosen as the distribution function of the flattop beam in this paper, the mapping formula of the input Gaussian beam and the output flattop beam was establish, the surface coefficient of aspheric was given. The energy conversion efficiency was 95.33% and the flattened degree was 93.66% in this design. The accuracy of measurement has been improved when measure the laser induced damage threshold of thin films by the flattop beam. (C) 2014 Elsevier GmbH. All rights reserved.

引用

页码：4143 / 4145

页数：3

共 8 条

[1]

Amarande SA, 1996, OPT COMMUN, V129, P311

[2] Laser damage threshold of ceramic YAG [J].

Bisson, JF ;

Feng, Y ;

Shirakawa, A ;

Yoneda, H ;

Lu, JR ;

Yagi, H ;

Yanagitani, T ;

Ueda, KI .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2003, 42 (8B) :L1025-L1027

[3] LOSSLESS CONVERSION OF A PLANE LASER WAVE TO A PLANE WAVE OF UNIFORM IRRADIANCE [J].

FRIEDEN, BR .

APPLIED OPTICS, 1965, 4 (11) :1400-&

[4] The pointing stability of flattened Gaussian beams [J].

Lü, B ;

Luo, SR .

JOURNAL OF MODERN OPTICS, 2002, 49 (07) :1089-1094

[5]

Santarsiero M, 1997, J MOD OPTIC, V44, P633, DOI 10.1080/09500349708232927

[6] Geometric optics-based design of laser beam shapers [J].

Shealy, DL ;

Chao, SH .

OPTICAL ENGINEERING, 2003, 42 (11) :3123-3138

[7] Mirror thermal noise in flat-beam cavities for advanced gravitational wave interferometers [J].

Vinet, JY .

CLASSICAL AND QUANTUM GRAVITY, 2005, 22 (07) :1395-1404

[8] Single-element laser beam shaper for uniform flat-top profiles [J].

Zhang, S ;

Neil, G ;

Shinn, M .

OPTICS EXPRESS, 2003, 11 (16) :1942-1948

← 1 →