Abstract:

We demonstrate tunable electro-optic guiding, shaping, and switching of beams in the near infrared spectrum ( 980 nm), typical of VCSEL technology, using biomimetic 3D funnel waveguides miniaturized into a sample of potassium–lithium–tantalate–niobate. The switchable waveguides are written using the slow photorefractive build-up of a 3D volume space-charge field caused by a diffracting continuous wave low intensity λ = 532 nm beam, and electro-optic functionality is supported by the quadratic electro-optic effect of the high-symmetry paraelectric phase. [ABSTRACT FROM AUTHOR]Copyright of Journal of Optics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Notes:

Accession Number: 102282746; J Parravicini 1,2; Email Address: jacopo.parravicini@roma1.infn.it F Di Mei 1,3 D Pierangeli 1 A J Agranat 4 E DelRe 1,2; Affiliation: 1: Dipartimento di Fisica, ‘Sapienza’ Università di Roma, I-00185 Roma, Italy 2: IPCF-CNR, ‘Sapienza’ Università Roma, I-00185 Roma, Italy 3: Center for Life Nano Science Sapienza, Istituto Italiano di Tecnologia, I-00161 Roma, Italy 4: Applied Physics Department, Hebrew University of Jerusalem, IL-91904 Israel; Source Info: May2015, Vol. 17 Issue 5, p1; Subject Term: MINIATURE electronic equipment; Subject Term: ELECTRO-optical modulation; Subject Term: PHOTOREFRACTIVE effect; Subject Term: BIOMIMETIC materials; Subject Term: SURFACE emitting lasers; Subject Term: NEAR infrared spectroscopy; Number of Pages: 1p; Document Type: Article