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A. Roshko · SciRah

Researcher profile · Semantic Scholar

A. Roshko

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A. Roshko — researcher profile on SciRah

h-index: 26
Works: 130
Citations: 2,449

Most-cited papers

Mechanism for spontaneous growth of GaN nanowires with molecular beam epitaxy
K. Bertness, A. Roshko, L. Mansfield, T. Harvey +1 more
2008168 citations
Semantic Scholar
New Constraints on Dark Photon Dark Matter with Superconducting Nanowire Detectors in an Optical Haloscope.
J. Chiles, I. Charaev, R. Lasenby, M. Baryakhtar +8 more
2021Physical Review Letters142 citations Open access
Semantic Scholar
Spontaneously grown GaN and AlGaN nanowires
K. Bertness, A. Roshko, N. Sanford, Joy M. Barker +1 more
2006126 citations
Semantic Scholar
Controlled Nucleation of GaN Nanowires Grown with Molecular Beam Epitaxy
Kris A. Bertness, A. Sanders, D. Rourke, T. Harvey +3 more
2010125 citations
Semantic Scholar
Steady-state and time-resolved photoluminescence from relaxed and strained GaN nanowires grown by catalyst-free molecular-beam epitaxy
J. B. Schlager, K. Bertness, Paul T. Blanchard, L. Robins +2 more
2008122 citations
Semantic Scholar
Nucleation conditions for catalyst-free GaN nanowires
K. Bertness, A. Roshko, L. Mansfield, T. Harvey +1 more
2007115 citations
Semantic Scholar
Catalyst-free growth of GaN nanowires
K. Bertness, N. Sanford, Joy M. Barker, J. B. Schlager +3 more
2006109 citations
Semantic Scholar
Steady-state and transient photoconductivity in c-axis GaN nanowires grown by nitrogen-plasma-assisted molecular beam epitaxy
N. Sanford, Paul T. Blanchard, K. Bertness, L. Mansfield +5 more
2010106 citations
Semantic Scholar
Epitaxial nucleation and growth of chemically derived Ba2YCu3O7−x thin films on (001) SrTiO3
P. McIntyre, M. Cima, A. Roshko
1995104 citations
Semantic Scholar
Polarity-Controlled GaN/AlN Nucleation Layers for Selective-Area Growth of GaN Nanowire Arrays on Si(111) Substrates by Molecular Beam Epitaxy
M. Brubaker, S. Duff, T. Harvey, Paul T. Blanchard +4 more
201685 citations
Semantic Scholar
On-chip optical interconnects made with gallium nitride nanowires.
M. Brubaker, Paul T. Blanchard, J. B. Schlager, A. Sanders +6 more
2013Nano letters (Print)82 citations
Semantic Scholar
Polarization-resolved photoluminescence study of individual GaN nanowires grown by catalyst-free molecular beam epitaxy
J. B. Schlager, N. Sanford, K. Bertness, Joy M. Barker +2 more
200664 citations
Semantic Scholar
EBSD Measurement of strains in GaAs due to oxidation of buried AlGaAs layers
R. Keller, A. Roshko, R. Geiss, K. Bertness +1 more
200463 citations
Semantic Scholar
Heteroepitaxial growth of TiO2 films by ion-beam sputter deposition
P. A. Morris Hotsenpiller, G. A. Wilson, A. Roshko, J. Rothman +1 more
199644 citations Open access
Semantic Scholar
Electron Enhanced Growth of Crystalline Gallium Nitride Thin Films at Room Temperature and 100 °C Using Sequential Surface Reactions
J. Sprenger, A. Cavanagh, Hua-Xing Sun, K. Wahl +2 more
2016Chemistry of Materials43 citations Open access
Semantic Scholar
Electron-Enhanced Atomic Layer Deposition of Boron Nitride Thin Films at Room Temperature and 100 °C
J. Sprenger, Hua-Xing Sun, A. Cavanagh, A. Roshko +2 more
2018The journal of physical chemistry. C, Nanomaterials and interfaces42 citations
Semantic Scholar
Nano-sized ferrite particles for magnetic resonance imaging thermometry
J. Hankiewicz, J. A. Stoll, J. Stroud, J. Davidson +8 more
2019Journal of Magnetism and Magnetic Materials41 citations Open access
Semantic Scholar
UV LEDs Based on p-i-n Core-Shell AlGaN/GaN Nanowire Heterostructures Grown by N-polar Selective Area Epitaxy
M. Brubaker, Kristen L. Genter, A. Roshko, Paul T. Blanchard +3 more
2019Nanotechnology40 citations Open access
Semantic Scholar
Hybrid glass substrates for waveguide device manufacture.
Samuel D. Conzone, J. S. Hayden, D. Funk, A. Roshko +1 more
2001Optics Letters38 citations
Semantic Scholar
Imaging of domain-inverted gratings in LiNbO3 by electrostatic force microscopy
H. Bluhm, A. Wadas, R. Wiesendanger, A. Roshko +2 more
199734 citations
Semantic Scholar
Injection-level-dependent internal quantum efficiency and lasing in low-defect GaN nanowires
J. B. Schlager, N. Sanford, K. Bertness, A. Roshko
201130 citations
Semantic Scholar
Surface resistance and morphology of YBCO films as a function of thickness
F. Stork, K. A. Beall, A. Roshko, D. Degroot +3 more
1997IEEE transactions on applied superconductivity26 citations
Semantic Scholar
Optical constants of (Al0.98Ga0.02)xOy native oxides
K. J. Knopp, R. Mirin, D. H. Christensen, K. Bertness +2 more
199825 citations
Semantic Scholar
Surface modification of YBa2Cu3O7- delta thin films using the scanning tunneling microscope: five methods
R. Thomson, J. Moreland, A. Roshko
199425 citations Open access
Semantic Scholar
Selective Area Growth and Structural Characterization of GaN Nanostructures on Si(111) Substrates
A. Roshko, M. Brubaker, Paul T. Blanchard, T. Harvey +1 more
2018Crystals23 citations Open access
Semantic Scholar
Enhanced superconducting transition temperature in electroplated rhenium
D. Pappas, Donald E. David, R. Lake, M. Bal +12 more
2018Applied Physics Letters22 citations Open access
Semantic Scholar
Growth morphologies of heteroepitaxial rutile films on sapphire substrates
P. A. Morris Hotsenpiller, A. Roshko, J. B. Lowekamp, G. Rohrer
199719 citations
Semantic Scholar
The effects of substrate surface steps on the microstructure of epitaxial Ba2YCu3O7−x thin films on (001) LaAlO3
P. McIntyre, M. Cima, A. Roshko
199519 citations
Semantic Scholar
The role of Si in GaN/AlN/Si(111) plasma assisted molecular beam epitaxy: polarity and inversion
A. Roshko, M. Brubaker, Paul T. Blanchard, T. Harvey +1 more
2019Japanese journal of applied physics. Part 1, Regular papers & short notes16 citations Open access
Semantic Scholar
Laser‐assisted atom probe tomography of MBE grown GaN nanowire heterostructures
N. Sanford, Paul T. Blanchard, M. Brubaker, K. Bertness +5 more
201416 citations
Semantic Scholar
Toward Discrete Axial p–n Junction Nanowire Light-Emitting Diodes Grown by Plasma-Assisted Molecular Beam Epitaxy
M. Brubaker, Paul T. Blanchard, J. B. Schlager, A. Sanders +7 more
2013Journal of Electronic Materials15 citations
Semantic Scholar
Comparison of heteroepitaxial YBa2Cu3O7−δ and TiO2 thin film growth
A. Roshko, F. Stork, D. Rudman, D. J. Aldrich +1 more
199715 citations
Semantic Scholar
Fabrication and analysis of GaN nanorods grown by MBE
N. Sanford, L. Robins, M. Gray, Y.-S. Kang +7 more
200514 citations
Semantic Scholar
Comparison of convergent beam electron diffraction and annular bright field atomic imaging for GaN polarity determination
A. Roshko, M. Brubaker, Paul T. Blanchard, K. Bertness +3 more
2017Journal of Materials Research13 citations Open access
Semantic Scholar
High Degree of Crystalline Perfection in Spontaneously Grown GaN Nanowires
K. Bertness, J. B. Schlager, N. Sanford, A. Roshko +7 more
200513 citations
Semantic Scholar
Eutectic Formation, V/III Ratio and Controlled Polarity Inversion in Nitrides on Silicon[]
A. Roshko, M. Brubaker, Paul T. Blanchard, T. Harvey +1 more
2020Physica status solidi. B, Basic research12 citations Open access
Semantic Scholar
Spontaneous growth of GaN nanowire nuclei on N- and Al-polar AlN: A piezoresponse force microscopy study of crystallographic polarity
M. Brubaker, A. Roshko, Paul T. Blanchard, T. Harvey +2 more
201612 citations Open access
Semantic Scholar
Characterization of Sub-Monolayer Contaminants at the Regrowth Interface in GaN Nanowires Grown by Selective-Area Molecular Beam Epitaxy
Paul T. Blanchard, M. Brubaker, T. Harvey, A. Roshko +3 more
2018Crystals10 citations Open access
Semantic Scholar
Formation of AlN and GaN nanocolumns on Si(111) using molecular beam epitaxy with ammonia as a nitrogen source
K. Bertness, A. Roshko, N. Sanford, J. B. Schlager +1 more
20059 citations
Semantic Scholar
Narrow photoluminescence linewidths from ensembles of self-assembled InGaAs quantum dots
R. Mirin, K. Silverman, D. H. Christensen, A. Roshko
20009 citations
Semantic Scholar
Size effects and giant magnetoresistance in unannealed NiFe/Ag multilayer stripes
S. C. Sanders, R. W. Cross, S. Russek, A. Roshko +1 more
19969 citations
Semantic Scholar
Formation of InAs/GaAs quantum dots by dewetting during cooling
R. Mirin, A. Roshko, M. van der Puijl, A. Norman
20028 citations
Semantic Scholar
Surface roughness and height-height correlations dependence on thickness of YBaCuO thin films
D. Blank, M. E. Bijlsma, R. Moerman, H. Rogalla +2 more
19978 citations Open access
Semantic Scholar
Effects of etching on the morphology and surface resistance of YBa/sub 2/Cu/sub 3/O/sub 7/(-/spl delta/) films
A. Roshko, S. Russek, K. A. Trott, S. C. Sanders +3 more
1995IEEE transactions on applied superconductivity7 citations
Semantic Scholar
Microstructure evolution and development of annealed Ni/Au contacts to GaN nanowires
A. Herrero, Paul T. Blanchard, A. Sanders, M. Brubaker +3 more
2012Nanotechnology6 citations Open access
Semantic Scholar
Tungsten germanide superconducting nanowire single-photon detectors with saturated internal detection efficiency at wavelengths up to 29 µm
B. Hampel, Daniel Kuznesof, Andrew S. Mueller, Sahil R. Patel +12 more
2025APL Photonics5 citations Open access
Semantic Scholar
Lateral variations in self-assembled InGaAs quantum dot distributions
A. Roshko, T. Harvey, Brittany Hyland, S. Lehman +1 more
20095 citations
Semantic Scholar
Polarization-resolved photoluminescence study of individual GaN nanowires grown by catalyst-free MBE
J. B. Schlager, N. Sanford, K. Bertness, Joy M. Barker +2 more
20065 citations
Semantic Scholar
Electron Backscatter Diffraction for Studies of Localized Deformation
R. Geiss, A. Roshko, K. Bertness, R. Keller
20035 citations
Semantic Scholar
Magnetic flux pinning in epitaxial YBa2Cu3O7−δ thin films
A. Roshko, L. Goodrich, D. Rudman, R. Moerman +1 more
19955 citations
Semantic Scholar

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