User contributions for Pcunni1
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- 13:27, 6 November 2009 diff hist +839 Terahertz Radiation
- 10:55, 6 November 2009 diff hist +238 N File:HBCCO Tdep.png THz TDS is used to map the temperature dependence of the conductivity in the high-temperature superconductor HBCCO, showing an sharp increase in the imaginary component near the critical temperature where Cooper pairing becomes efficient. current
- 11:54, 8 October 2009 diff hist +173 Terahertz Radiation
- 13:18, 4 October 2009 diff hist +290 Terahertz Radiation
- 09:41, 4 October 2009 diff hist +184 N File:Polymer dynamics.png The THz conductivity dynamics observed in an amorphous polymer film at various delays after photo-excitation shows an evolution from dispersive transport to a bound excitonic response. current
- 19:13, 1 October 2009 diff hist +2,941 Terahertz Radiation
- 20:05, 24 September 2009 diff hist +88 Terahertz Radiation →EO Polymers for THz
- 20:01, 24 September 2009 diff hist +602 Terahertz Radiation →THz generation and detection
- 19:20, 24 September 2009 diff hist +1,594 Terahertz Radiation →EO Polymers for THz
- 18:48, 24 September 2009 diff hist +158 N File:THz Polymer vs ZnTe.png The THz bandwidth available using polymer detector far exceeds that available using the inorganic crystal ZnTe, due to improved phase matching in the polymer. current
- 09:35, 24 September 2009 diff hist +2,022 Terahertz Radiation →THz generation and detection
- 09:14, 24 September 2009 diff hist +246 N File:THz OR.png THz "optical rectification" occurs by nearly-degenerate difference frequency mixing between the frequency components of an ultra-short pulse in a 2nd order nonlinear optical medium. This process is capable of producing very broadband THz pulses. current
- 09:08, 24 September 2009 diff hist +191 N File:THz PDA.png Schematic diagrams of THz generation from transient photocurrent in a photoconductive dipole antenna, and detection by an THz field-induced transient photocurrent in a photoconductive switch. current
- 08:47, 24 September 2009 diff hist +411 N File:FSEOS of THz.png In free-space electro-optic sampling, the THz waveform and a ultra-short "probe" pulse propagate collinearly through an electro-optic medium. The THz field induces birefringence in the EO medium through the Pockel effect, rotating the polarization of the current
- 19:59, 23 September 2009 diff hist +1,313 Terahertz Radiation →THz generation
- 18:30, 23 September 2009 diff hist +189 N File:THz exp setup.png Schematic diagram of a typical THz time-domain spectroscopy experimental setup where THz pulses are generated via "optical rectification" and detected via free-space electro-optic sampling. current
- 18:17, 23 September 2009 diff hist +1,952 Terahertz Radiation edited introduction and added history section
