Femtosecond carrier dynamics in quasi-one-dimensional topological compounds

Y. Toda; K. Shimatake; S. Tanda; J. Onoe

doi:10.1117/12.807333

6 February 2009 Femtosecond carrier dynamics in quasi-one-dimensional topological compounds

Y. Toda, K. Shimatake, S. Tanda, J. Onoe

Proceedings Volume 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII; 72141G (2009) https://doi.org/10.1117/12.807333
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Due to the recent progress of material science, quasi-one-dimensional (1D) materials provide an opportunity for investigating the influence of topology and dimensionality on their optical and electrical properties. In this study, we report the phase transition properties of such quasi-1D compounds by utilizing an ultrafast optical spectroscopy. Photoexcited nonequilibrium carrier dynamics yield characteristic features around the phase transition temperatures. We also discuss the toplogical effects on the phase coherence of correlated carriers by using both polarization and excitation energy dependences of the transient signals and their spatial characteristics.

Citation Download Citation

Y. Toda, K. Shimatake, S. Tanda, and J. Onoe "Femtosecond carrier dynamics in quasi-one-dimensional topological compounds", Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 72141G (6 February 2009); https://doi.org/10.1117/12.807333

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