Nonresonant holeburning in the Terahertz range: Brownian oscillator model
نویسندگان
چکیده
منابع مشابه
Nonresonant holeburning in the Terahertz range: Brownian oscillator model.
The response to the field sequence of nonresonant hole burning, a pump-wait-probe experiment originally designed to investigate slow relaxation in complex systems, is calculated for a model of Brownian oscillators, thus including inertial effects. In the overdamped regime the model predictions are very similar to those of the purely dissipative stochastic models investigated earlier, including ...
متن کاملWidth of phonon sidebands in the Brownian oscillator model.
The line width dependence of zero-phonon lines and phonon sidebands on temperature, bath dissipation, and electron-phonon coupling is studied for an underdamped Brownian oscillator model with an Ohmic dissipative bath. Factors determining the line widths vary from the zero-phonon lines to the phonon sidebands. The control-parameter space of line broadening has been mapped out, revealing that th...
متن کاملNonresonant 104 Terahertz Field Enhancement with 5-nm Slits
Transmission of Terahertz (THz) electromagnetic wave through a substrate is encumbered because of scattering, multiple reflections, absorption, and Fabry-Perot effects when the wave interacts with the substrate. We present the experimental realization of nonresonant electromagnetic field enhancement by a factor of almost 104 in substrate-free 5-nm gold nanoslits. Our nanoslits yielded greater t...
متن کاملTerahertz Power-Combining with Coupled Oscillator Arrays
A quasi-optical method for solid-state power-combining is discussed, with application to high-power millimeter-wave generation. The approach uses two-dimensional planar arrays of coupled oscillators. These arrays are distinguished by the strength of the coupling, which is limited to weak interactions. This simplifies both the analysis and design of the arrays. A theoretical description of the c...
متن کاملTerahertz Bloch oscillator with a modulated bias.
Electrons performing Bloch oscillations in an energy band of a dc-biased superlattice in the presence of weak dissipation can potentially generate THz fields at room temperature. The realization of such a Bloch oscillator is a long-standing problem due to the instability of a homogeneous electric field in conditions of negative differential conductivity. We establish the theoretical feasibility...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2004
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.1633251