Surface phenomena in ionic interdiffusion in optical glasses

Alexandru I. Lupascu; Constantin P. Cristescu

doi:10.1117/12.520077

30 September 2003 Surface phenomena in ionic inter-diffusion in optical glasses

Alexandru I. Lupascu, Constantin P. Cristescu

Proceedings Volume 5227, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies; (2003) https://doi.org/10.1117/12.520077
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

Abstract

We present theoretical results in modeling ionic inter-diffusion in optical glasses. Several interface phenomena are studied and their influence on the shape and the position of the waveguides is explained. The most important process is re-diffusion. We investigate the influence of the maximum surface concentration, of the clustering and of the time constant for reaching interface equilibrium. Their influence is taken into account by introducing supplementary terms in the inter-diffusion equation or by modifying boundary and initial conditions. All the parameters of the final buried guides depend on surface phenomena. The total amount of ions in the guide, the width at half the maximum, the burying depth and the shape of the profiles depend on surface processes. The influence appears for the mono-mode, as well as for multi-mode structures.

Citation Download Citation

Alexandru I. Lupascu and Constantin P. Cristescu "Surface phenomena in ionic inter-diffusion in optical glasses", Proc. SPIE 5227, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies, (30 September 2003); https://doi.org/10.1117/12.520077

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