Subsurface 3D structures by laser-induced modification of the optical properties of transparent materials

David Ashkenasi; Hans-Juergen Hoffmann; Dieter Krause; Gerhard J. Mueller

doi:10.1117/12.479233

17 October 2003 Subsurface 3D structures by laser-induced modification of the optical properties of transparent materials

David Ashkenasi, Hans-Juergen Hoffmann, Dieter Krause, Gerhard J. Mueller

Author Affiliations +

Proceedings Volume 4977, Photon Processing in Microelectronics and Photonics II; (2003) https://doi.org/10.1117/12.479233
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

A new field in laser processing is opened by this method of modifying the optical properties, i.e. the refractive index, absorption- and scattering-coefficient, inside the material. Focusing ultra short laser pulses inside the transparent media allows to control and modify their optical properties. This is referred to as nik-engineering, relating the experimental technique to changes of the complex refractive index (n + ik). Three dimensional patterns of the (n + ik) modifications can be achieved in the subsurface region even on a microscopic scale. New results in nik-engineering obtained in our application laboratory are presented using different optical materials. The results in laser nik-engineering of photo-chromic glass using ultra short laser pulses at a wavelength of 800 nm are presented to the best of our knowledge for the first time. We discuss the results and the possibilities of nik-engineering and consider the technological relevance with respect to decorative work, micro-tagging, and other functional structures.

Citation Download Citation

David Ashkenasi, Hans-Juergen Hoffmann, Dieter Krause, and Gerhard J. Mueller "Subsurface 3D structures by laser-induced modification of the optical properties of transparent materials", Proc. SPIE 4977, Photon Processing in Microelectronics and Photonics II, (17 October 2003); https://doi.org/10.1117/12.479233

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