Specially shaped negative lens produced in a lithium niobate crystal

Norbert Tarjányi

doi:10.1117/1.OE.53.5.057104

7 May 2014 Specially shaped negative lens produced in a lithium niobate crystal

Norbert Tarjányi

Author Affiliations +

Optical Engineering, Vol. 53, Issue 5, 057104 (May 2014). https://doi.org/10.1117/1.OE.53.5.057104

Abstract

The photorefractivity of iron-doped lithium niobate crystal is utilized for creating a negative lens-like structure. The refractive index inhomogeneity acting as a lens is formed due to illumination of the crystal by an optical field with Gaussian spatial distribution of intensity modified by a proper cylindrical lens. Blue line (488 nm) of an argon ion laser is used as a source of light for inducing the inhomogeneity within the crystal. Imaging properties of the photorefractive inhomogeneity are discussed in terms of wave and ray optics approaches and they are practically demonstrated by means of coherent light coming from a He–Ne laser (633 nm). Finally, the focal lengths of the “lens” are calculated using both the lens equation and the formula resulting from analysis of the phase curvature of the wave of light, which passed through the refractive index inhomogeneity.

Citation Download Citation

Norbert Tarjányi "Specially shaped negative lens produced in a lithium niobate crystal," Optical Engineering 53(5), 057104 (7 May 2014). https://doi.org/10.1117/1.OE.53.5.057104

Published: 7 May 2014

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