Zobrazeno 1 - 10
of 377
pro vyhledávání: '"Goldberg, B. B."'
Autor:
Vamivakas, A. N., Atature, M., Dreiser, J., Yilmaz, S. T., Badolato, A., Swan, A. K., Goldberg, B. B., Imamoglu, A., Unlu, M. S.
Publikováno v:
Nano Letters, 7, 2892-2896 (2007).
Through the utilization of index-matched GaAs immersion lens techniques we demonstrate a record extinction (12%) of a far-field focused laser by a single InAs/GaAs quantum dot. This contrast level enables us to report for the first time resonant lase
Externí odkaz:
http://arxiv.org/abs/0706.3004
Autor:
Vamivakas, A. N., Dogan, M., Ippolito, S. B., Behringer, E. R., Swan, A. K., Goldberg, B. B., Unlu, M. S.
We theoretically study the problem of detecting dipole radiation in an optical system of high numerical aperture in which the detector is sensitive to \textit{field amplitude}. In particular, we model the phase sensitive detector as a single-mode cyl
Externí odkaz:
http://arxiv.org/abs/physics/0609173
A mass and spring model is used to calculate the phonon mode dispersion for single wall carbon nanotubes (SWNTs) of arbitrary chirality. The calculated dispersions are used to determine the chirality dependence of the radial breathing phonon mode (RB
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609197
Autor:
Yin, Y., Walsh, A. G., Vamivakas, A. N., Cronin, S., Stolyarov, A. M., Tinkham, M., Bacsa, W., Unlu, M. S., Goldberg, B. B., Swan, A. K.
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics, Vol. 12, No. 6, pp. 1083, November/December 2006
We perform tunable resonant Raman scattering on 17 semiconducting and 7 metallic singly resonant single wall carbon nanotubes. The measured scattering cross-section as a function laser energy provides information about a tube's electronic structure,
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606047
Publikováno v:
Physical Review Letters, Vol. 98, No. 3, 037404, 19 January 2007
We report on an optical method to directly measure electron-phonon coupling in carbon nanotubes by correlating the first and second harmonic of the resonant Raman excitation profile. The method is applicable to 1D and 0D systems and is not limited to
Externí odkaz:
http://arxiv.org/abs/cond-mat/0605670
We use the Kramers-Heisenberg approach to derive a general expression for the resonant Raman scattering cross section from a one-dimensional (1D) system explicitly accounting for excitonic effects. The result should prove useful for analyzing the Ram
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604515
Scattering of carriers between spatially separated zero dimensional states has been observed in a system of self-assembled In_{0.55}Al_{0.45}As quantum dots. We believe the interdot tunneling is mediated by localized states below the barrier band edg
Externí odkaz:
http://arxiv.org/abs/cond-mat/9810120
We report an anomalous doublet structure and low-energy satellite in the magneto-photoluminescence spectra of a two-dimensional electron system. The doublet structure moves to higher energy with increasing magnetic field and is most prominent at odd
Externí odkaz:
http://arxiv.org/abs/cond-mat/9804068
We observe a dramatic reduction in the degree of spin-polarization of a two-dimensional electron gas in a magnetic field when the Fermi energy moves off the mid-point of the spin-gap of the lowest Landau level, $\nu=1$. This rapid decay of spin align
Externí odkaz:
http://arxiv.org/abs/cond-mat/9507069
Publikováno v:
Journal of Applied Physics; 3/1/2005, Vol. 97 Issue 5, p053105, 12p, 5 Diagrams, 8 Charts, 16 Graphs
