Inverse problem of Bragg's scattering for measuring the spectrum surface roughness in the optical gradient waveguide

N. Grishaeva; A. Osovitsky; N. Espinosa; L. Cadena; C. Vega; J. Alvarez

doi:10.1117/12.2273970

5 September 2017 Inverse problem of Bragg's scattering for measuring the spectrum surface roughness in the optical gradient waveguide

N. Grishaeva, A. Osovitsky, N. Espinosa, L. Cadena, C. Vega, J. Alvarez

Author Affiliations +

Proceedings Volume 10372, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems III; 1037209 (2017) https://doi.org/10.1117/12.2273970
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

A new method for measuring the spectrum of surface roughness based on Bragg scattering, is proposed. This method is characterized by its high precision of measurement of the spatial amplitudes and frequencies. Was determined the rang of spatial frequencies (periods) of harmonics in the roughness spectrum surfaces (0,π) (0; π). When the rotation´s angle of grating is (0,π/4) will be a forward scattering or Bragg´s deflector. At rotation´s angle of grating is (π/2,π/4) or (-3π/4,-π/2) will a Bragg´s mirror. The measurements are made in a gradient waveguide, obtained by ion exchange method.

Citation Download Citation

N. Grishaeva, A. Osovitsky, N. Espinosa, L. Cadena, C. Vega, and J. Alvarez "Inverse problem of Bragg's scattering for measuring the spectrum surface roughness in the optical gradient waveguide", Proc. SPIE 10372, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems III, 1037209 (5 September 2017); https://doi.org/10.1117/12.2273970

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