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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
  • OSA Technical Digest (CD) (Optica Publishing Group, 2007),
  • paper QWE1

Multi-THz Conductivity and Lattice Dynamics during a Femtosecond Insulator-Metal Transition in VO2

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Abstract

Ultrabroadband THz spectroscopy directly monitors the femtosecond onset of conductivity during the photoinduced insulator-to-metal phase transition in vanadium dioxide. We observe coherent structural distortions via anharmonic phonon coupling and fluence-dependent self-trapping of excitons.

© 2007 Optical Society of America

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