Paper
3 October 2014 Engineering the ground- and excited-state absorption spectra of broadband reverse saturable absorbers
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Abstract
We exploit the strong spin-orbit coupling in iridium to modify the linear absorption spectrum of a novel iridium(III) complex so as to broaden the spectral region over which it exhibits reverse saturable absorption. We discuss the design of the new chromophore, present its ground-state absorption spectrum, and report values of its singlet excited-state lifetime and singlet and triplet excited-state absorption cross sections, determined from femtosecond transient difference absorption measurements and nanosecond and picosecond open-aperture Z scans.
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Timothy M. Pritchett, Michael J. Ferry, William M. Shensky III, Andrew G. Mott, Chengkui Pei, and Wenfang Sun "Engineering the ground- and excited-state absorption spectra of broadband reverse saturable absorbers", Proc. SPIE 9181, Light Manipulating Organic Materials and Devices, 918104 (3 October 2014); https://doi.org/10.1117/12.2059282
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KEYWORDS
Absorption

Picosecond phenomena

Lens design

Phosphorescence

Chromophores

Iridium

Quantum efficiency

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