Search Results - "Vengurlekar, A S"

Enhanced magneto-optical effects in magnetoplasmonic crystals by Belotelov, V. I., Akimov, I. A., Pohl, M., Kotov, V. A., Kasture, S., Vengurlekar, A. S., Gopal, Achanta Venu, Yakovlev, D. R., Zvezdin, A. K., Bayer, M.

“…Plasmonics allows light to be localized on length scales much shorter than its wavelength, which makes it possible to integrate photonics and electronics on…”
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Size-Dependent Tuning of Mn2+ d Emission in Mn2+-Doped CdS Nanocrystals: Bulk vs Surface by Nag, Angshuman, Cherian, Roby, Mahadevan, Priya, Gopal, Achanta Venu, Hazarika, Abhijit, Mohan, Akshatha, Vengurlekar, A. S, Sarma, D. D

“…We show that the characteristic Mn2+ d emission color from Mn2+-doped CdS nanocrystals can be tuned over as much as 40 nm, in contrast to what should be…”
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Plasmon assisted intense blue–green emission from ZnO/ZnS nanocrystallites by Mandal, P., Singh, Amandev, Kasture, Sachin, Gopal, Achanta Venu, Vengurlekar, A.S.

“…► ZnO/ZnS is an important optoelectronic materials in the blue–green spectral range. ► Strong emission and broad band coverage. ► Materials growth through…”
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Modulation of a surface plasmon-polariton resonance by subterahertz diffracted coherent phonons by Brüggemann, C., Akimov, A. V., Glavin, B. A., Belotelov, V. I., Akimov, I. A., Jäger, J., Kasture, S., Gopal, A. V., Vengurlekar, A. S., Yakovlev, D. R., Kent, A. J., Bayer, M.

“…Coherent sub-THz phonons incident on a gold grating that is deposited on a dielectric substrate undergo diffraction and thereby induce an alteration of the…”
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Femtosecond pulse distortion at surface plasmon resonances in a plasmonic crystal: Effect of surface plasmon lifetime by Vengurlekar, A. S., Gopal, A. Venu, Ishihara, T.

“…Measurements of temporal profile of a femtosecond laser pulse propagating through a one-dimensional metallic plasmonic crystal show that the pulses are…”
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Near dispersion-less surface plasmon polariton resonances at a metal-dielectric interface with patterned dielectric on top by Kasture, Sachin, Mandal, P., Singh, Amandev, Ramsay, Andrew, Vengurlekar, A. S., Dutta Gupta, S., Belotelov, Vladimir, Venu Gopal, Achanta

“…We report possibility of surface plasmon polariton modes that can be excited by incident light of a fixed frequency coming at wide angles. We experimentally…”
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On the origin of time-resolved pump–probe differential signal from excitons in quantum wells by Pal, Bipul, Vengurlekar, A.S

“…We investigate the origin and nature of femtosecond time-resolved (TR) pump–probe differential (PPD) signal from the exciton resonance in semiconductor quantum…”
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Studying periodic nanostructures by probing the in-sample optical far-field using coherent phonons by Brueggemann, C, Jaeger, J, Glavin, BA, Belotelov, VI, Akimov, IA, Kasture, S, Gopal, A V, Vengurlekar, A S, Yakovlev, DR, Akimov, A V

“…Optical femtosecond laser pulses diffracted into a crystalline substrate by a gold grating on top interact with gigahertz coherent phonons propagating towards…”
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Reciprocal transmittances and reflectances: An elementary proof by Iwanaga, Masanobu, Vengurlekar, A. S., Hatano, Takafumi, Ishihara, Teruya

“…We present an elementary proof concerning reciprocal transmittances and reflectances. The proof is direct, simple, and valid for the diverse objects that can…”
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Exciton Formation and Relaxation Dynamics in Quantum Wires by Kumar, Rajesh, Vengurlekar, A. S., Venu Gopal, A., Mélin, T., Laruelle, F., Etienne, B., Shah, J.

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Propagation effects in spectrally resolved transient four wave mixing measurements on excitons in GaAs multiple quantum wells by Pal, Bipul, Vengurlekar, A.S, Gopal, A.V, Prabhu, S.S

“…We perform spectrally resolved degenerate four wave mixing (DFWM) measurements by resonantly exciting 1s heavy hole excitons in 8 and 17.5 nm wide GaAs…”
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Plasmonic crystals for ultrafast nanophotonics: Optical switching of surface plasmon polaritons by Pohl, M., Belotelov, V. I., Akimov, I. A., Kasture, S., Vengurlekar, A. S., Gopal, A. V., Zvezdin, A. K., Yakovlev, D. R., Bayer, M.

“…We demonstrate that the dispersion of surface plasmon polaritons in a periodically perforated gold film can be efficiently manipulated by femtosecond laser…”
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Exciton-phonon scattering in GaAs/AlAs quantum wires by Gopal, A. Venu, Kumar, Rajesh, Vengurlekar, A. S., Mélin, T., Laruelle, F., Etienne, B.

“…We perform temperature-dependent photoluminescence measurements on a GaAs/AlAs quantum wire array (QWR-A) with a very low disorder. Using these, we deduce the…”
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On the line shape of intensity correlated nonlinear photoluminescence spectra due to delocalized excitons in GaAs quantum wells by Kumar, R., Vengurlekar, A.S., Prabhu, S.S.

“…Measurements of the picosecond time-resolved intensity-correlated nonlinear photoluminescence (NLPL) spectra are made at different excitation densities in the…”
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Temperature dependence of luminescence spectra related to free carrier and exciton recombination in GaAs quantum wells by Kumar, Rajesh, Prabhu, S S, Vengurlekar, A S

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Exciton–exciton scattering in GaAs/AlAs lateral superlattice by Venu Gopal, A., Vengurlekar, A.S., Laruelle, F., Etienne, B., Shah, J.

“…We perform time integrated degenerate four-wave mixing (DFWM) measurements to investigate exciton dephasing in a GaAs/AlAs lateral superlattice (LSL) with a…”
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Miniband conduction of minority electrons and negative transconductance by quantum reflection in a superlattice transistor by VENGURLEKAR, A. S, CAPASSO, F, HUTCHINSON, A. L, TSANG, W. T

“…Transport of electrons tunnel injected into a superlattice (SL) is studied. The SL is placed in the base of an n-p-n bipolar transistor. By varying the…”
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Extraordinary optical transmission through metal films with subwavelength holes and slits by Vengurlekar, A. S.

“…Continuous films of metals like gold and silver with a thickness of a few tens of nanometres have poor transmission for visible and infrared light. However,…”
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Effect of shallow and deep donors on the equilibrium electron density of the two-dimensional electron gas in a modulation-doped field-effect transistor by Subramanian, S., Vengurlekar, A.S., Diwan, A.A.

“…A model to calculate the equilibrium electron density of the two-dimensional electron gas in a modulation-doped field-effect transistor that takes into account…”
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Laser processing of III–V compound semiconductors by Vengurlekar, A S

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