Fabrication of birefringent microstructures in transparent materials with femtosecond laser pulses

Wataru Watanabe; Kazuhiro Yamada; Daisuke Kuroda; Taishi Shinagawa; Taishi Asano; Junji Nishii; Kazuyoshi Itoh

doi:10.1117/12.470622

18 June 2002 Fabrication of birefringent microstructures in transparent materials with femtosecond laser pulses

Wataru Watanabe, Kazuhiro Yamada, Daisuke Kuroda, Taishi Shinagawa, Taishi Asano, Junji Nishii, Kazuyoshi Itoh

Proceedings Volume 4637, Photon Processing in Microelectronics and Photonics; (2002) https://doi.org/10.1117/12.470622
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States

Abstract

When femtosecond laser pulses are tightly focused inside the bulk of transparent materials, the intensity in a focal volume become high enough to produce submicrometer-scale structural modifications. The modifications has been applied to fabricate 3D photonic structures. Tightly-focused femtosecond laser pulses create voids, which are surrounded by densified material. In this paper we show that the shapes of voids can be controlled by the spatial profile of incident laser pulse. We also show that the diffraction intensities due to the fabricated arrays of voids depend on the polarization-states of the readout beam. Finally, we demonstrate that irradiation of femtosecond laser pulses moves a void inside calcium fluoride and silica glass without any mechanical translations of the optical system. In situ observation revealed that a void moves towards incident direction of laser pulses as long as 2 micron.

Citation Download Citation

Wataru Watanabe, Kazuhiro Yamada, Daisuke Kuroda, Taishi Shinagawa, Taishi Asano, Junji Nishii, and Kazuyoshi Itoh "Fabrication of birefringent microstructures in transparent materials with femtosecond laser pulses", Proc. SPIE 4637, Photon Processing in Microelectronics and Photonics, (18 June 2002); https://doi.org/10.1117/12.470622

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