Imaging the evanescent intensity gradients of an optical waveguide using a tapping-mode near-field scanning optical microscope

Chi Wen Yang; Din Ping Tsai; Howard E. Jackson

doi:10.1117/12.370327

12 November 1999 Imaging the evanescent intensity gradients of an optical waveguide using a tapping-mode near-field scanning optical microscope

Chi Wen Yang, Din Ping Tsai, Howard E. Jackson

Author Affiliations +

Proceedings Volume 3896, Design, Fabrication, and Characterization of Photonic Devices; (1999) https://doi.org/10.1117/12.370327
Event: International Symposium on Photonics and Applications, 1999, Singapore, Singapore

Abstract

Imaging the local evanescent intensity gradients by using a tapping-mode near-field scanning optical microscope is developed. Two different optical structures, one a well- characterized BK-7 glass prism in the total internal reflection configuration, and the other a side-polished optical fiber waveguide with a step index of refraction, were studied. Results show distinct imaging contrast of the intensity gradients, the reveal the variations of the local index of refraction of waveguide. This is a novel near-field optical method, and can be used in the imaging of local index of refraction of a variety of optical waveguide structures.

Citation Download Citation

Chi Wen Yang, Din Ping Tsai, and Howard E. Jackson "Imaging the evanescent intensity gradients of an optical waveguide using a tapping-mode near-field scanning optical microscope", Proc. SPIE 3896, Design, Fabrication, and Characterization of Photonic Devices, (12 November 1999); https://doi.org/10.1117/12.370327

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