Chirality and optical activity: a terahertz time-domain spectroscopy investigation

A. Y. Elezzabi; S. Sederberg

doi:10.1117/12.809299

6 February 2009 Chirality and optical activity: a terahertz time-domain spectroscopy investigation

A. Y. Elezzabi, S. Sederberg

Proceedings Volume 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII; 72140O (2009) https://doi.org/10.1117/12.809299
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We explore THz optical activity of ensembles of dense randomly oriented metallic helices by studying their time-domain response to THz electromagnetic pulse excitation. The interaction of the electromagnetic wave with this artificial chiral material mimics that interaction with highly concentrated optically active liquids. By dynamically accessing the THz electric field transmitted through the helical chiral media, optical activity signatures are correlated with the arrival time and polarization state of the detected THz electric field radiation. Our experiment show two distinct phases for optical rotation: one which is associated with scattering and the other is associated with phase accumulation.

Citation Download Citation

A. Y. Elezzabi and S. Sederberg "Chirality and optical activity: a terahertz time-domain spectroscopy investigation", Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 72140O (6 February 2009); https://doi.org/10.1117/12.809299

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