A multi-terahertz view of ultrafast charge density wave dynamics in TiSe2

We track the collective terahertz free-carrier response of 1T-TiSe 2 during femtosecond photo-induced melting and recovery of a charge density wave. The formation of charge order is highly sensitive to the transient excess carrier density, suggesting a strong excitonic influence.

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Bibliographic Details
Main Authors: Porer, M., Menard, J.-M, Dachraoui, H., Leierseder, U., Groh, K., Demsar, J., Heinzmann, U., Huber, R.
Format: Conference Proceeding
Language:English
Subjects:
Charge carrier density
Optical amplifiers
Optical pulses
Optical pumping
Optical reflection
Scattering
Ultrafast optics
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Summary:We track the collective terahertz free-carrier response of 1T-TiSe 2 during femtosecond photo-induced melting and recovery of a charge density wave. The formation of charge order is highly sensitive to the transient excess carrier density, suggesting a strong excitonic influence.
ISSN:2160-8989
2160-9004