Strong-field terahertz optical mixing in excitons
نویسندگان
چکیده
منابع مشابه
Transmission Properties of the Periodic Structures Based on Graphene Nonlinear Optical Conductivity in a Terahertz Field
By developing the terahertz (THz) technology, in addition to generators and detectors of THz waves, the existence of some tools such as modulators and filters are needed. THz filters are important tools for various applications in the field of chemical and biological sensors. Linear and nonlinear optical properties of the graphene have attracted lots of attention. In fact graphene exhibits vari...
متن کاملAntenna effects in terahertz apertureless near-field optical microscopy
We have performed measurements on terahertz (THz) apertureless near-field microscopy that show that the temporal shape of the observed near-field signals is approximately proportional to the time-integral of the incident field. Associated with this signal change is a bandwidth reduction by approximately a factor of 3 which is observed using both a near-field detection technique and a far-field ...
متن کاملBose-einstein Condensation of Excitons in Ideal 2d System in Strong Magnetic Field
We study ideal two-dimensional ( 2D ) electron-hole system in a strong perpendicular magnetic field using the Keldysh-Kozlov-Kopaev method and generalized random phase approximation. The Bose-Einstein condensation of the correlated pairs takes place on a single particle state with an arbitrary wave vector k in a symmetric 2D model. We show that the ground state energy per one exciton and the ch...
متن کاملHigh Field, High Efficiency Terahertz Pulse Generation by Optical Rectification
The great difficulty of producing high intensity radiation in the terahertz (THz) spectral region by conventional electronics has stimulated interest in development of sources based on photonics. Optical rectification in lithium niobate is an attractive approach, because it supports high generation efficiencies, uses low cost, bulk LN crystals, and is powered by common Yb-doped lasers at wavele...
متن کاملOptical waveguide mode control by nanoslit-enhanced terahertz field.
In this Letter we propose a scheme providing control over an optical waveguide mode by a terahertz (THz) wave. The scheme is based on an optimization of the overlap between the optical waveguide mode and the THz field, with the THz field strength enhanced by the presence of a metallic nanoslit surrounding the waveguide. We find an optimum balance between the optical mode attenuation and Kerr-in...
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: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.67.125307