Dark hollow lasers may be better candidates for holography

被引：34

作者：

Malik, Lohit ^{[1
]}

机构：

[1] Netaji Subhas Univ Technol Delhi, Dept Mfg Proc & Automat Engn, New Delhi 110078, India

来源：

OPTICS AND LASER TECHNOLOGY | 2020年 / 132卷

关键词：

Dark-hollow Laser beams; Frequency difference/detuning; Modulation depth; Holography; NONVOLATILE 2-COLOR HOLOGRAPHY; TERAHERTZ GENERATION; BEAM; PROPAGATION; EVOLUTION; CRYSTAL; STATE;

D O I：

10.1016/j.optlastec.2020.106485

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Gaussian laser beams have been very successful in various fields including holography where two lasers with frequency difference have been used, but good quality holograms could be produced only for small frequency detuning. The present proposal proves that the Dark-hollow laser beams (DHBs) may be better than the Gaussian lasers for larger frequency difference. DHBs with smaller dark spot generate new regions of frequency detuning with very significant value of modulation depth. It also enables the flexibility of both fixing the pulse duration and varying the frequency difference or vice-versa for obtaining the best possible quality holograms.

引用

页数：7

共 40 条

[11] Generation of short pulse radiation from magnetized wake in gas-jet plasma and laser interaction [J].