Journal
OPTICS EXPRESS
Volume 19, Issue 19, Pages 18253-18259Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.018253
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Funding
- U.S. Army Research Office [50372-CH-MUR]
- ARO [W911NF-04-1-0350]
- ARO-MURI [50342-PH-MUR]
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Effects of a solid matrix on the dye kinetic parameters for Rh800 were experimentally studied. Saturation intensity dependencies were measured with a seeding pulse amplification method using a picosecond and a femtosecond white light supercontinuum source. The kinetic parameters were obtained by fitting experimental dependencies with Yee's finite-difference time-domain model coupled to the rate equations of the 4-level Rh800-system. The comparison of these parameters (Rh800-solid host) with liquid host parameters revealed a slight change of the radiative lifetime and a strong change of the non-radiative decay rate. This experimentally determined model enables predictive simulations of time-domain responses of active metamaterials. (C) 2011 Optical Society of America
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