Premium
Meso ‐Tetra‐Alkynyl Porphyrins for Optical Limiting—A Survey of Group III and IV Metal Complexes
Author(s) -
Krivokapic A.,
Anderson H. L.,
Bourhill G.,
Ives R.,
Clark S.,
McEwan K. J.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200105)13:9<652::aid-adma652>3.0.co;2-3
Subject(s) - microsecond , tetra , materials science , picosecond , photochemistry , excited state , indium , porphyrin , wavelength , absorption (acoustics) , laser , metal , optoelectronics , optics , atomic physics , chemistry , physics , medicinal chemistry , metallurgy , composite material
Indium porphyrin 1 is an excellent optical limiter at visible wavelengths (480–620 nm). Absorption of light results in quantitative formation of the triplet excited state, which absorbs light 48 times more strongly than the ground state and has a lifetime of 0.8 ms. This should provide strong nonlinear attenuation of laser pulses on picosecond to microsecond timescales.