Diffraction gratings ablated on lithium niobate single crystal by femtosecond pulses

Benhai Yu; Qingbin Tang

doi:10.1117/12.821452

18 February 2009 Diffraction gratings ablated on lithium niobate single crystal by femtosecond pulses

Benhai Yu, Qingbin Tang

Proceedings Volume 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications; 727613 (2009) https://doi.org/10.1117/12.821452
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

The surface diffraction gratings on lithium niobate single crystal ablated by a femtosecond laser pulse at a wavelength of 800 nm have been investigated. The diffraction efficiencies of the gratings ablated with various parameters were measured by He-Ne laser at a wavelength of 632.8 nm. The 1-order diffraction efficiencies of the gratings improve from 1.7% to 2.3% with the increase of ablation speed from 20μm/s to 200μm/s, and decrease from 1.9% to 1.3% with the increase of pulse energy from 70nJ to 110nJ, respectively. The experimental and theoretical results show that the diffraction efficiencies of gratings can be improved by increase of ablation speed and grating constant or decrease of pulse energy.

Citation Download Citation

Benhai Yu and Qingbin Tang "Diffraction gratings ablated on lithium niobate single crystal by femtosecond pulses", Proc. SPIE 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications, 727613 (18 February 2009); https://doi.org/10.1117/12.821452

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available