Title :
Ultrafast dissection of excitonic and structural orders in a persisting charge density wave
Author :
Porer, M. ; Leierseder, U. ; Menard, J.-M. ; Dachraoui, H. ; Mouchliadis, L. ; Perakis, I.E. ; Heinzmann, U. ; Demsar, J. ; Rossnagel, K. ; Huber, R.
Author_Institution :
Dept. of Phys., Univ. of Regensburg, Regensburg, Germany
Abstract :
We monitor the terahertz fingerprints of electronic and structural orders of the charge density wave in 1T-TiSe2 on the femtosecond scale. NIR photoexcitation selectively melts electronic ordering while the structural distortion persists in a coherently excited state.
Keywords :
charge density waves; excitons; high-speed optical techniques; infrared spectra; light coherence; photoexcitation; terahertz waves; titanium compounds; NIR photoexcitation; TiSe2; charge density wave; coherently excited state; electronic orders; excitonic orders; femtosecond scale; structural distortion; terahertz fingerprint monitoring; ultrafast dissection; Correlation; Distortion; Lattices; Optical distortion; Phonons; Physics; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
