Abstract

Ten-nanosecond time resolution has been achieved with step-scan FT-IR absorbance difference spectroscopy (S2FT-IR Delta A TRS) and demonstrated by measuring Delta A spectra of fac -[Re(bpy)(CO) Cl] 3and cis -[Os(bpy) (CO)(4,4 ' -bpy)]2+(bpy = 2,2 ' -bipyridine; 4,4 ' -bpy 2= 4,4 ' -bipyridine) in CH CN solution, following 355-nm laser exci3 tation. In both complexes, the large shifts in upsilon (CO) to higher energy are consistent with the assignment that the lowest-energy excited states are metal-to-ligand charge transfer in nature. For [Os(bpy) (CO)(4,4 ' -bpy)]2+, it is also possible to measure the excit2 ed-state decay kinetics, again with 10-ns resolution. In addition, Delta A bands are observed that are related to excited-state vibrations of the bipyridine ligands. Delta A spectra of good signal-to-noise ratio can be obtained for complexes with lifetimes as short as 10 ns.

Time-resolved spectral characterization of ring cavity surface emitting and ridge-type distributed feedback quantum cascade lasers by step-scan FT-IR spectroscopy

Markus Brandstetter, Andreas Genner, Clemens Schwarzer, Elvis Mujagic, Gottfried Strasser, and Bernhard Lendl
Opt. Express 22(3) 2656-2664 (2014)

Effect of metal complexation on the nonlinear optical response of a conjugated ligand

F. Khammar, A. P. Kerasidou, K. Iliopoulos, P. Savel, H. Akdas-Kilig, Y. Hamaizi, J.-L. Fillaut, and B. Sahraoui
J. Opt. Soc. Am. B 31(7) 1555-1560 (2014)

Strong triplet excited-state absorption in a phenanthrolinyl iridium(III) complex with benzothiazolylfluorenyl-substituted ligands

Timothy M. Pritchett, Michael J. Ferry, William M. Shensky, Andrew G. Mott, David J. Stewart, Stephanie L. Long, Joy E. Haley, Zhongjing Li, and Wenfang Sun
Opt. Lett. 40(2) 186-189 (2015)

Recent applications of FT-IR spectroscopy to polymer systems

J. L. Koenig and M. K. Antoon
Appl. Opt. 17(9) 1374-1385 (1978)

Polarization-resolved broadband time-resolved optical spectroscopy for complex materials: application to the case of MoTe₂ polytypes

Michele Perlangeli, Simone Peli, Davide Soranzio, Denny Puntel, Fulvio Parmigiani, and Federico Cilento
Opt. Express 28(6) 8819-8829 (2020)