Engineering the ground- and excited-state absorption spectra of broadband reverse saturable absorbers

Timothy M. Pritchett; Michael J. Ferry; William M. Shensky III; Andrew G. Mott; Chengkui Pei; Wenfang Sun

doi:10.1117/12.2059282

3 October 2014 Engineering the ground- and excited-state absorption spectra of broadband reverse saturable absorbers

Timothy M. Pritchett, Michael J. Ferry, William M. Shensky III, Andrew G. Mott, Chengkui Pei, Wenfang Sun

Proceedings Volume 9181, Light Manipulating Organic Materials and Devices; 918104 (2014) https://doi.org/10.1117/12.2059282
Event: SPIE Organic Photonics + Electronics, 2014, San Diego, California, United States

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.

Citation Download Citation

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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