Share Email Print

Proceedings Paper

Enhanced second-order effect in fullerene-doped glass
Author(s): Peter K. Wong; Tak D. Cheung; Harry D. Gafney; Dehipawalag Sunil
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Fullerene (C60) was doped into porous Corning Vycor glass host while preserving its second order susceptibility. The range of loading factor is from 2 by 10E16 fullerene molecules/g of glass to 2 by 10E17 molecules/g. The susceptibility of the fullerene is substantially enhanced from the thin film value of 10E-15 esu, as reported in the literature. The observed second harmonic signal showed a broad spectrum similar to that of the thin film as the transition is vibration-assisted. The second harmonic signal was excited with the fundamental of a Q-switched Nd:YAG laser. Signals from those high loading factor samples that are oriented at a certain angle relative to the beam are comparable to that of powdered LiNbO3. This geometry- related enhancement is interpret as a quasi phase-matching enhancement resulted from the observed birefringence. This birefringence originating from the C60/Vycor interaction within the nanopores and nanochannels is enhanced over that of the glass alone. Loaded glass samples of 2-mm thickness showed a weak absorption in the visible region but good transmission in the IR. No thermal degradation was observed after irradiating the samples with the Nd:YAG laser for 2000 seconds at 1 kHz repetition rate pulses with a power input density of Mw/cm2.

Paper Details

Date Published: 29 October 1998
PDF: 8 pages
Proc. SPIE 3474, Second-Order Organic Nonlinear Optics, (29 October 1998); doi: 10.1117/12.328578
Show Author Affiliations
Peter K. Wong, CUNY/Queensboro Community College (United States)
Tak D. Cheung, CUNY/Queensboro Community College (United States)
Harry D. Gafney, CUNY/Queens College (United States)
Dehipawalag Sunil, CUNY/Queens College (United States)

Published in SPIE Proceedings Vol. 3474:
Second-Order Organic Nonlinear Optics
Manfred Eich, Editor(s)

© SPIE. Terms of Use
Back to Top