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Your search keyword '"Sanchez-Gil, J.A."' showing total 11 results
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11 results on '"Sanchez-Gil, J.A."'

5. Analysis of the propagation of terahertz surface plasmon polaritons on semiconductor groove gratings

Author

Kuttge, M., Kurz, H., Rivas, J. Gomez, Sanchez-Gil, J.A., and Bolivar, P. Haring

Subjects
Semiconductor wafers -- Acoustic properties, Plasmons (Physics) -- Acoustic properties, Physics
Abstract

The propagation of terahertz (THz) surface plasmon polaritons (SPPs) on gratings formed by grooves structured in silicon wafers is examined. The effective refractive index of the Bragg gratings are determined by measuring the transmittance through the gratings at different angles of incidence and from the phase of the transmitted THz pulses.

Published
2007

6. Calculations of the direct electromagnetic enhancement in surface enhanced Raman scattering on....

Author

Sanchez-Gil, J.A. and Garcia-Ramos, J.V.

Subjects
*SURFACE enhanced Raman effect, *ELECTROMAGNETIC measurements
Abstract

Examines the direct electromagnetic enhancement in surface enhanced Raman scattering on random self-affine fractal metal structures. Details on scattered electromagnetic intensity; Electromagnetic mechanism on silver, gold and copper substrates; Assessment of wavelength for the three metals.

Published
1998
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7. Semiconductor nanowire photoluminescence : spatial/polarization averaged coupling into leaky modes

Author

Paniagua-Dominguez, R., Grzela, G., Gomez Rivas, J., Sanchez-Gil, J.A., Subramania, G.S., Foteinopoulou, S., Photonics and Semiconductor Nanophysics, and Surface Photonics

Subjects
Photon, Photoluminescence, Materials science, business.industry, Nanowire, Physics::Optics, Polarization (waves), Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, symbols.namesake, Condensed Matter::Materials Science, Fourier transform, Semiconductor, symbols, Optoelectronics, Luminescence, business
Abstract

Photoluminescence from finite semiconductor nanowires is theoretically investigated. We show experimentally the directional emission of polarized light from single InP nanowires through Fourier microphotoluminescence, thus demonstrating semiconductor nanowires behave as efficient optical nanoantennas. Numerical calculations for finite nanowires confirm such enhanced and directional emission. We anticipate the relevance of these results for the development of nanowire photon sources with optimized efficiency and controlled emission.

Published
2013

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