Zobrazeno 1 - 10
of 888
pro vyhledávání: '"Osgood R"'
Autor:
Kuyken B., Leo F., Clemmen S., Dave U., Van Laer R., Ideguchi T., Zhao H., Liu X., Safioui J., Coen S., Gorza S.P., Selvaraja S. K., Massar S., Osgood R. M., Verheyen P., Van Campenhout J., Baets R., Green W.M. J., Roelkens G.
Publikováno v:
Nanophotonics, Vol 6, Iss 2, Pp 377-392 (2017)
The strong nonlinear response of silicon photonic nanowire waveguides allows for the integration of nonlinear optical functions on a chip. However, the detrimental nonlinear optical absorption in silicon at telecom wavelengths limits the efficiency o
Externí odkaz:
https://doaj.org/article/7356239d7ceb44b49ce290f4a73171fd
Autor:
Niesner, D., Fauster, Th., Dadap, J. I., Zaki, N., Knox, K. R., Yeh, P. -C., Bhandari, R., Osgood, R. M., Petrović, M., Kralj, M.
Publikováno v:
Phys. Rev. B 85, 081402(R) (2012)
We report the use of time- and angle-resolved two-photon photoemission to map the bound, unoccupied electronic structure of the weakly coupled graphene/Ir(111) system. The energy, dispersion, and lifetime of the lowest three image-potential states ar
Externí odkaz:
http://arxiv.org/abs/1109.1948
Autor:
Kocaman, S., Chatterjee, R., Panoiu, N. C., McMillan, J. F., Yu, M. B., Osgood, R. M., Kwong, D. L., Wong, C. W.
We present the first observations of zero-n bandgaps in photonic crystal superlattices consisting of alternating stacks of negative index photonic crystals and positive index dielectric materials in the near-infrared. Guided by ab initio three-dimens
Externí odkaz:
http://arxiv.org/abs/0904.2352
Autor:
Chatterjee, R., Panoiu, N. C., Liu, K., Dios, Z., Yu, M. B., Doan, M. T., Kaufman, L. J., Osgood, R. M., Wong, C. W.
We report the observation of imaging beyond the diffraction limit due to bound surface states in negative refraction photonic crystals. We achieve an effective negative index figure-of-merit [-Re(n)/Im(n)] of at least 380, ~125x improvement over rece
Externí odkaz:
http://arxiv.org/abs/0803.0986
In this paper, we numerically demonstrate a near-infrared negative-index metamaterial (NIM) slab consisting of multiple layers of perforated metal-dielectric stacks and exhibiting low imaginary part of index over the wavelength of negative refraction
Externí odkaz:
http://arxiv.org/abs/physics/0605191
We investigate for the first time the enhancement of the stimulated Raman scattering in slow-light Silicon-on-Insulator (SOI) photonic crystal line defect waveguides. By applying the Bloch-Floquet formalism to the guided modes in a planar photonic cr
Externí odkaz:
http://arxiv.org/abs/physics/0511040
Metal-based negative refractive index materials have been extensively studied in the microwave region. However, negative-index metamaterials have not been realized at near-IR or visible fre-quencies due to difficulties of fabrication and to the gener
Externí odkaz:
http://arxiv.org/abs/physics/0504208