Search Results - "Gokhale, M. R."
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MOVPE growth of semipolar III-nitride semiconductors on CVD graphene
Published in Journal of crystal growth (01-06-2013)“…We report the growth and characterization of group III-nitride semiconductor layers on graphene grown by chemical vapour deposition. GaN, AlGaN alloys, and InN…”
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2
Wide Bandwidth Nanowire Electromechanics on Insulating Substrates at Room Temperature
Published in Nano letters (12-12-2012)“…We study InAs nanowire resonators fabricated on sapphire substrate with a local gate configuration. The key advantage of using an insulating sapphire substrate…”
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3
Influence of buffer layers on the microstructure of MOVPE grown a-plane InN
Published in Journal of crystal growth (15-01-2011)“…We report a comparative study of the microstructure of a-plane ( 1 1 2 ¯ 0 ) InN epilayers grown on different buffer layers via metalorganic vapour phase…”
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4
MOVPE growth and characterization of a -plane AlGaN over the entire composition range
Published in Physica status solidi. PSS-RRL. Rapid research letters (01-07-2010)“…We report the metal organic vapor phase epitaxy (MOVPE) growth and characterization of non‐polar (11$ \bar 2 $0) a ‐plane Alx Ga1–xN on (1$ \bar 1 $02) r…”
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5
MOVPE growth and characterization of InN/GaN single and multi-quantum well structures
Published in Journal of crystal growth (15-12-2008)“…We report on the growth of InN/GaN quantum well structures via metal organic vapour-phase epitaxy. From X-ray diffraction and transmission electron microscopy…”
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6
Growth and characterization of InN layers by metal-organic vapour phase epitaxy in a close-coupled showerhead reactor
Published in Journal of crystal growth (2007)“…We report the synthesis of InN via low-pressure metal-organic vapour phase epitaxy (MOVPE) in a close-coupled showerhead reactor system. InN layers were…”
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7
Charge deep level transient spectroscopy of electron traps in MOVPE grown n-GaN on sapphire
Published in Physica Status Solidi (b) (01-11-2008)“…We report investigation of electron traps in n‐GaN, grown on sapphire by metal organic vapour phase epitaxy, by using charge deep level transient spectroscopy…”
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8
Influence of growth parameters on the sub-bandgap absorption of MOVPE-grown GaN measured using photothermal deflection spectroscopy
Published in Journal of crystal growth (15-11-2008)“…In this work we have compared the sub-bandgap absorptance of nominally undoped GaN samples grown under different conditions. The absorptance is measured using…”
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9
Tuning and understanding the emission characteristics of MOVPE-grown self-assembled InAs/InP quantum dots
Published in Journal of crystal growth (2007)“…This paper examines the optical properties of self-assembled InAs/InP quantum dots grown by metalorganic vapour phase epitaxy (MOVPE). In a non-equilibrium…”
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10
A surface-emitting vacuum-deposited organic light emitting device
Published in Applied physics letters (02-06-1997)“…We demonstrate a vacuum-deposited organic light emitting device which emits from its top surface through a transparent indium-tin-oxide anode. This device…”
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11
Growth kinetics effects on self-assembled InAs ∕ InP quantum dots
Published in Applied physics letters (14-11-2005)“…A systematic manipulation of the morphology and the optical emission properties of metalorganic vapor phase epitaxy grown ensembles of InAs ∕ InP quantum dots…”
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12
Low-threshold current, high-efficiency 1.3-μm wavelength aluminum-free InGaAsN-based quantum-well lasers
Published in IEEE photonics technology letters (01-02-2000)“…We demonstrate high-performance Al-free InGaAsN-GaAs-InGaP-based long-wavelength quantum-well (QW) lasers grown on GaAs substrates by gas-source molecular beam…”
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13
Anisotropic structural and optical properties of a-plane (112¯) AlInN nearly-lattice-matched to GaN
Published in Applied physics letters (02-05-2011)“…We report epitaxial growth of a-plane (112¯0) AlInN layers nearly-lattice-matched to GaN. Unlike for c-plane oriented epilayers, a-plane Al1−xInxN cannot be…”
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14
Efficient coupling in integrated twin-waveguide lasers using waveguide tapers
Published in IEEE photonics technology letters (01-09-1999)“…We demonstrate a 1.55-μm wavelength, InGaAsP-InP, twin-waveguide (TG) laser integrated with passive ridge waveguides using low-loss taper couplers. The lateral…”
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15
Monolithic integration of an all-optical Mach-Zehnder demultiplexer using an asymmetric twin-waveguide structure
Published in IEEE photonics technology letters (01-06-2001)“…We demonstrate monolithic integration of a twin-waveguide Mach-Zehnder terahertz optical asymmetric demultiplexer (MZ-TOAD). The InGaAsP-InP device operates at…”
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16
High-resolution X-ray diffraction investigations of the microstructure of MOVPE grown a-plane AlGaN epilayers
Published in Journal of crystal growth (15-01-2011)“…We report a comprehensive characterization of the microstructure of non-polar ( 1 1 2 ¯ 0 ) a-plane Al x Ga 1− x N epilayers on ( 1 1 ¯ 0 2 ) r-plane sapphire…”
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17
The effects of macroscopic inhomogeneities on the magnetotransport properties of the electron gas in two dimensions
Published in Physica. E, Low-dimensional systems & nanostructures (01-09-2004)“…In experiments on electron transport, the macroscopic inhomogeneities in the sample play a fundamental role. In this paper and a subsequent one, we introduce…”
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Incidence and Predictors of Human Immunodeficiency Virus Type 1 Seroconversion in Patients Attending Sexually Transmitted Disease Clinics in India
Published in The Journal of infectious diseases (01-12-1995)“…The first estimates of the seroincidence of human immunodeficiency virus type 1 (HIV-1) and of the risk factors for seroconversion in a cohort of high-risk…”
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19
Polarized photoluminescence and absorption in A -plane InN films
Published in Applied physics letters (09-10-2006)“…The authors report the observation of strong polarization anisotropy in the photoluminescence (PL) and the absorption spectra of [ 11 2 ¯ 0 ] oriented A -plane…”
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20
Asymmetric twin-waveguide 1.55-μm wavelength laser with a distributed Bragg reflector
Published in IEEE photonics technology letters (01-05-2000)“…We demonstrate a single frequency, 1.55 μm wavelength laser based on an asymmetric twin-waveguide structure using a single growth step and a simple fabrication…”
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