Microscopic theory of motional narrowing of microcavitypolaritons in a disordered
نویسنده
چکیده
The innuence of static disorder on the optical properties of microcavity-embedded quantum wells is studied by means of a microscopic model. Both the exciton-photon coupling and the exciton-disorder interaction are treated non-perturbatively. Despite the nonconservation of the in-plane momentum due to disorder, the Rabi splitting is still present. Moreover, the lower polari-ton is subject to motional narrowing of the spectral response, while for the upper one this eeect is less important. This result shows very good agreement with recently observed spectra in high-quality samples.
منابع مشابه
Level spacing statistics of disordered finite superlattices spectra and motional narrowing as a random matrix theory effect
In the present work the problem of coupled disordered quantum wells is addressed in a random matrix theory framework. The quantum wells are short repulsive binary alloys embeded by ordered barriers and show well defined quantized levels as a consequence of spatial confinement. Finite disordered superlattices may show both diffusive-like and localized minibands. Three different level repulsion s...
متن کاملSome new observations on pulse sequence dependent diffusion related edge enhancement in MR microscopy.
Self-diffusion of nuclear spins has been suggested to cause edge enhancement in images especially on a microscopic scale. According to previously published work, theory suggests that edge enhancement is caused by motional narrowing due to the boundaries and spin self-diffusion during the data acquisition period. More careful examination reveals that edge enhancement due to motional narrowing de...
متن کاملDevelopments in the Motional Narrowing of the Nmr Spectra of Solids— Microscopic and Macroscopic
An investigation of microscopic motional narrowing of nmrspectra of polycrystalline tetra-, tn-, diand mono-methylammonium chloride is reported. A diversity of rotational motions of the ions and of the methyl groups within the ions is exhibited. The problem of detailed interpretation of the line-narrowing is particularly acute for two of these compounds, and also for solid 1-valine. The proper ...
متن کاملMotional narrowing effect in one-dimensional Frenkel chains with configurational disorder
We analyze the peculiarities of the motional narrowing effect in disordered one-dimensional Frenkel chains with off-diagonal disorder, induced by uncorrelated Gaussian fluctuations in the positions of the host units. A clear difference in the scaling laws with respect to the magnitude of the positional disorder and the chain size is found, as compared to those for uncorrelated diagonal disorder...
متن کاملElectronic Transmission Wave Function of Disordered Graphene by Direct Method and Green's Function Method
We describe how to obtain electronic transport properties of disordered graphene, including the tight binding model and nearest neighbor hopping. We present a new method for computing, electronic transport wave function and Greens function of the disordered Graphene. In this method, based on the small rectangular approximation, break up the potential barriers in to small parts. Then using the f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007