Controlling "mottness" in a correlated electron system via coherent vibrational excitation
Optics InfoBase Conference Papers (2010)
Abstract:
Control of onsite electronic wavefunctions is achieved in the organic conductor (BEDT-TTF)-F2TCNQ by resonant excitation of localized molecular vibrational modes of the BEDT molecule. In this way, the onsite two-particle Coulomb repulsion can be modulated. © OSA/UP 2010.Photo-induced superconductivity in charge ordered LESCO (La1.8-x Er0.2 Srx CuO4 , x=0.125)
Optics InfoBase Conference Papers (2010)
Abstract:
Photo-excitation of Cu-O vibrations with 17 mm wavelength pulses La1.8-xEr0.2SrxCuO4 results in a quantum coherent state, revealed by the presence of a Josephson Plasma Resonance characteristic of layered superconductors. © OSA / UP 2010.Quantum interference between photo-excited states in a solid-state mott insulator
Optics InfoBase Conference Papers (2010)
Abstract:
By exciting with sub-10-fs 1.6-μm pulses the quasi-one-dimensional Mott insulator ETF2TCNQ, we observe prompt collapse of the Mott gap modulated by 24-THz oscillations of the gap, which are assigned to quantum interference between holon-doublon excitations. © 2010 Optical Society of America.Single-shot detection and on-line control of carrier phase drifts of mid-IR pulses
Optics InfoBase Conference Papers (2010)
Abstract:
We introduce a new scheme for single-shot characterization of the absolute-phase jitter of mid-IR pulses. The system detects phase drifts of self-phase stabilized sources; a control scheme compensating long-term drifts is also demonstrated. © 2010 Optical Society of America.Single-shot detection and stabilization of carrier phase drifts of mid-IR pulses
Optics InfoBase Conference Papers (2010)