Paper
20 February 2012 Ultrafast nonlinear optical studies of 3,8,13,18-Tetrachloro-2,7,12,17-tetramethoxyporphyrin and its derivatives
Debasis Swain, Anup Rana, Pradeepta K. Panda, S. Venugopal Rao
Author Affiliations +
Abstract
Recently we synthesized 3,8,13,18-tetrachloro-2,7,12,17-tetramethoxyporphyrin and its metallo-derivatives [1]. The free-base molecule is unique owing to the presence of an electron donating methoxy group and electron withdrawing chloro group on the adjacent β- positions of each pyrrole moiety. We could synthesize these molecules through two different routes; the first route provided pure isomer, albeit in low yield, whereas the second route provided mixture of isomers with higher yield [1]. Herein we report the third-order nonlinear optical properties of these porphyrins obtained from Z-scan measurements using ~40 fs, 800 nm pulses. Open aperture data confirmed the presence of saturable absorption whereas the closed aperture data indicated a positive nonlinearity. We have compared the data of the pure isomer with that of the mixture of isomers.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Debasis Swain, Anup Rana, Pradeepta K. Panda, and S. Venugopal Rao "Ultrafast nonlinear optical studies of 3,8,13,18-Tetrachloro-2,7,12,17-tetramethoxyporphyrin and its derivatives", Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 82581B (20 February 2012); https://doi.org/10.1117/12.906957
Lens.org Logo
CITATIONS
Cited by 2 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Absorption

Molecules

Nonlinear optics

Saturable absorption

Ultrafast phenomena

Solids

Transmittance

Back to Top