Design And Fabrication Of Transmission Gratings With High Diffraction Efficiency For Pulse Compression

Keywords

diffraction efficiency; holographic lithography; ion etching; laser pulse compression; transmission grating

Abstract

Fused silica transmission grating plays an important role in the ultra-short laser pulse compression system. Fused silica transmission grating have the advantages of high diffraction efficiency, high damage threshold, long life and no shelter. The design and fabrication of pulse compression grating are investigated theoretically and experimentally in this paper. Rigorous coupled wave theory is used for design transmission grating with trapezoidal structure. The trapezoidal structure has better diffraction efficiency than that of the rectangular structure. The deep-etched fused silica transmission grating (1250lp/mm) is fabricated by holographic recording and ion beam etching. The aperture of transmission grating is Φ65mm, and its thickness is 1mm.The absolute -1st diffraction efficiency is about to 98%(@808nm). Experimental results are coincident with the theoretical analysis.

Publication Date

1-1-2016

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

10016

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2244872

Socpus ID

85010818150 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85010818150

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