Multiple pulse laser induced damage in Mercury Cadmium Telluride and Cadmium Telluride with 1.06μm laser in picosecond regime

被引：2

作者：

Garg, A ^{[1
]}

Kapoor, A ^{[1
]}

Tripathi, KN ^{[1
]}

机构：

[1] Univ Delhi, Dept Elect Sci, New Delhi 110021, India

来源：

LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 2003 | 2003年 / 5273卷

关键词：

laser damage; narrow band semiconductors;

D O I：

10.1117/12.524225

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Multiple pulse damage in mirror polished samples of Mercury Cadmium Telluride & Cadrnium Telluride at damage threshold has been studied using a 1.06 mum Nd: YAG laser of 35ps pulse duration. Damage morphology observed under Scanning Electron Microscope (SEM) is same for both HgCdTe & CdTe. It shows formation of a typical forest of micro-columnar structures which are aligned along the laser beam direction. All these micro-columns have 2-3 mum diameter round tip having a bright or white periphery. Formation of these micro-columns has been explained by hydro dynamical sputtering as proposed by Kelly and coworkers.

引用

页码：303 / 308

页数：6

共 9 条

[1] DEVELOPMENT AND ORIGIN OF CONICAL STRUCTURES ON XECL LASER ABLATED POLYIMIDE [J].