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Electrical properties of p –n junctions based on superlattices 

Chu, S.N.G.; Asomoza, R.; Kudryavtsev, Yu.; Holtz, M.; Temkin, H.; Nikishin, S.; Kipshidze, G.; Borisov, B.; Chandolu, A.; Kuryatkov, V. (American Institute of Physics, 2003-08-18)
Measurements of acceptor activation energy in p – n junctions based on superlattices of AlN ~1.25 nm thick! and Al0.08Ga0.92(In!N ~0.5 nm thick!, with the average AlN content greater than 0.6, are reported. Structural ...
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Evolution of surface roughness of AlN and GaN induced 

Holtz, Mark; Aurongzeb, D.; Temkin, H.; Nikishin, S.; Kipshidze, G.; Yun, J.; Borisov, B.; Kuryatkov, V.; Zhu, K. (American Institute of Physics, 2004-05-01)
We study the effects of plasma etching on the evolution of surface roughness of GaN and AlN. The etch-induced roughness is investigated using atomic force microscopy by systematically varying plasma power, chamber pressure, ...
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High-Resolution Pulse Shaper Based on Arrays of 

Temkin, H.; Bernussi, A.A.; Grave de Peralta, L.; Krishnan, A.; Knapczyk, M. (Institute of Electrical and Electronics Engineers, 2005-10)
We describe an optical Fourier transform pulse shaper based on a combination of a diffraction grating and a reconfigurable array of digital micromirrors. The pulse shaper allows for adjustment of separation between consecutive ...
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Direct space-to-time pulse shaper with reflective 

Temkin, H.; Bernussi, A.A.; Kuryatkov, V.; Grave de Peralta, L.; Krishnan, A. (Optical Society of America, 2006-03-01)
We demonstrate for what we believe to be the first time the generation of sequences of ultrafast optical pulses by phase modulation in a direct space-to-time pulse shaper. The pulse shaper is based on the combination of a ...
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Dependence of the stress–temperature coefficient on dislocation density 

Temkin, H.; Faleev, N.; Holtz, Mark; Ahmad, I. (American Institute of Physics, 2004-02-15)
We report measurements of stress in GaN epitaxial layers grown on 6H–SiC and a-Al2O3 substrates. Biaxial stresses span 11.0 GPa ~tensile! to 21.2 GPa ~compressive!. Stress determined from curvature measurements, obtained ...
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Generation of Arbitrary Sequences of Ultrafast 

Bernussi, A.A.; IEEE; Fellow; Temkin, H.; Kuryatov, V.; Grave de Peralta, L.; Krishnan, A. (Institute of Electronic and Electrical Engineers, 2007-02-15)
We report a new approach to the generation of arbitrary sequences of ultrafast pulses using an integrated optics space-to-time optical processor. The processor combines a reflective arrayed waveguide grating multiplexer ...
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DIELECTRIC FUNCTION OF AlN GROWN ON Si (111) BY MBE 

Temkin, H.; Nikishin, S.; Wilson, S.; Gregory, R.; Konkar, A.; Zollner, Stefan (Materials Research Society, 2000)
We measured the ellipsometric response from 0.7-5.4 eV of c-axis oriented AlN on Si (111) grown by molecular beam epitaxy. We determine the film thicknesses and find that for our AlN the refractive index is about 5-10% ...
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Ignition studies of AlÕFe2O3 energetic nanocomposites 

Temkin, H.; Yun, J.; Berg, J.; Holtz, Mark; Aurongzeb, D.; Shkuratov, S.; Bhargava Ram, K.; Patibandla, S.; Menon, L. (American Institute of Physics, 2004-06-07)
We prepare energetic nanocomposites, which undergo an exothermic reaction when ignited at moderate temperature. The nanocomposites are a mixture of Al fuel and Fe2O3 oxidizer where Fe2O3 is in the form of an array of ...
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Generation of Ultrafast Pulse Sequences With 

Bernussi, A.A.; Temkin, H.; Grave de Peralta, L.; Krishnan, A. (Institute of Electronics and Electrical Engineers, 2006-05-15)
We demonstrate a novel approach to generation of sequences of ultrafast pulses in which external stress is applied to arrayed waveguide grating multiplexers using a corrugated pattern. Stress applied to the grating region ...
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Enhanced deep ultraviolet luminescence from AlGaN quantum wells grown 

Temkin, H.; Kuryatkov, V.; Nikishin, S.; Borisov, B. (American Institute of Physics, 2005-10-31)
We report a significant improvement in the room temperature cathodoluminescence efficiency of AlGaN quantum wells when the three-dimensional growth mode is induced by reduced flux of ammonia. We interpret this observation ...
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Nikishin, S. (21)Kuryatkov, V. (16)Holtz, Mark (15)Borisov, B. (14)Kipshidze, G. (14)Holtz, M. (11)Chandolu, A. (9)Grave de Peralta, L. (9)Aurongzeb, D. (7)... View MoreDate Issued2004 (11)2005 (11)2003 (9)2001 (5)2002 (5)2006 (5)2000 (2)2007 (2)Has File(s)Yes (50)

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