Search Results - "Crawford, M. H."

Light-Extraction Enhancement of GaInN Light-Emitting Diodes by Graded-Refractive-Index Indium Tin Oxide Anti-Reflection Contact by Kim, J. K., Chhajed, S., Schubert, M. F., Schubert, E. F., Fischer, A. J., Crawford, M. H., Cho, J., Kim, H., Sone, C.

“…GaInN LEDs with a six‐layer graded‐ refractive‐index antireflection coating made entirely of indium tin oxide (ITO) are demonstrated to have 24.3 % higher…”
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Diet and bite force in red foxes: ontogenetic and sex differences in an invasive carnivore by Forbes‐Harper, J. L., Crawford, H. M., Dundas, S. J., Warburton, N. M., Adams, P. J., Bateman, P. W., Calver, M. C., Fleming, P. A.

“…Bite force is often used as a predictive indicator of an animal's feeding ecology, although the premise that there is a direct link between diet and cranial…”
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Dependence of radiative efficiency and deep level defect incorporation on threading dislocation density for InGaN/GaN light emitting diodes by Armstrong, A., Henry, T. A., Koleske, D. D., Crawford, M. H., Westlake, K. R., Lee, S. R.

“…The influence of threading dislocation (TD) density on electroluminescence and deep level defect incorporation in the multi-quantum well regions of InGaN/GaN…”
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Subsidised by junk foods: factors influencing body condition in stray cats (Felis catus) by Crawford, H M, Calver, M C, Fleming, P A

“…Abstract Domestic cats (Felis catus) are one of the most widely distributed and successful carnivores globally. While cats are popular pets, many unowned,…”
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Connection between GaN and InGaN growth mechanisms and surface morphology by Koleske, D.D., Lee, S.R., Crawford, M.H., Cross, K.C., Coltrin, M.E., Kempisty, J.M.

“…Power spectral density (PSD) analysis of atomic force microscopy (AFM) images is used to determine the roughening and smoothing mechanisms that contribute to…”
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Growth and characterization of Mg-doped AlGaN–AlN short-period superlattices for deep-UV optoelectronic devices by Allerman, A.A., Crawford, M.H., Miller, M.A., Lee, S.R.

“…We report the growth and characterization of Mg-doped, short-period superlattices (Mg-SPSLs) consisting of AlN and Al 0.23Ga 0.77N epilayers grown by…”
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Growth and design of deep-UV (240–290 nm) light emitting diodes using AlGaN alloys by Allerman, A.A., Crawford, M.H., Fischer, A.J., Bogart, K.H.A., Lee, S.R., Follstaedt, D.M., Provencio, P.P., Koleske, D.D.

“…Solid-state light sources emitting at wavelengths less than 300 nm would enable technological advances in many areas such as fluorescence-based biological…”
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Thermal stability of thin InGaN films on GaN by Thaler, G.T., Koleske, D.D., Lee, S.R., Bogart, K.H.A., Crawford, M.H.

“…The thermal stability of ∼200-nm-thick InGaN thin films on GaN was investigated using isothermal and isochronal post-growth anneals. The In x Ga 1− x N films (…”
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Patterns of DNA Methylation Across the Leptin Core Promoter in Four Diverse Asian and North American Populations by Mosher, M. J., Melton, P. E., Stapleton, P., Schanfield, M. S., Crawford, M. H.

“…DNA methylation is the most widely studied of epigenetic mechanisms, with environmental effects recorded through patterned attachments of methyl groups along…”
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Effect of interface grading and lateral thickness variation on x-ray diffraction by InGaN/GaN multiple quantum wells by Lee, S.R., Koleske, D.D., Crawford, M.H., Wierer, J.J.

“…We develop a method for simulating the effects of interface grading and lateral variation in layer thickness on x-ray diffraction by InGaN/GaN multiple quantum…”
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Junction and carrier temperature measurements in deep-ultraviolet light-emitting diodes using three different methods by Xi, Y., Xi, J.-Q., Gessmann, Th, Shah, J. M., Kim, J. K., Schubert, E. F., Fischer, A. J., Crawford, M. H., Bogart, K. H. A., Allerman, A. A.

“…The junction temperature of AlGaN ultraviolet light-emitting diodes emitting at 295nm is measured by using the temperature coefficients of the diode forward…”
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Biological relationship between central and South American Chibchan speaking populations: Evidence from mtDNA by Melton, Phillip E., Briceño, I., Gómez, A., Devor, E.J., Bernal, J.E., Crawford, M.H.

“…We examined mitochondrial DNA (mtDNA) haplogroup and haplotype diversity in 188 individuals from three Chibchan (Kogi, Arsario, and Ijka) populations and one…”
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Mammary response to exogenous prolactin or frequent milking during early lactation in dairy cows by Wall, E H, Crawford, H M, Ellis, S E, Dahl, G E, McFadden, T B

“…Frequent milking of dairy cows during early lactation results in a persistent increase in milk yield; however, the mechanism underlying this effect is unknown…”
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Relaxation of compressively-strained AlGaN by inclined threading dislocations by Follstaedt, D. M., Lee, S. R., Provencio, P. P., Allerman, A. A., Floro, J. A., Crawford, M. H.

“…Transmission electron microscopy and x-ray diffraction were used to assess the microstructure and strain of Al x Ga 1 − x N ( x = 0.61 - 0.64 ) layers grown on…”
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Analysis of lasers as a solution to efficiency droop in solid-state lighting by Chow, W. W., Crawford, M. H.

“…This letter analyzes the proposal to mitigate the efficiency droop in solid-state light emitters by replacing InGaN light-emitting diodes (LEDs) with lasers…”
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The band-gap bowing of AlxGa1−xN alloys by Lee, S. R., Wright, A. F., Crawford, M. H., Petersen, G. A., Han, J., Biefeld, R. M.

“…The band gap of AlxGa1−xN is measured for the composition range 0⩽x<0.45; the resulting bowing parameter, b=+0.69 eV, is compared to 20 previous works. A…”
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Carrier Diffusion Lengths in Continuously Grown and Etched-and-Regrown GaN Pin Diodes by Celio, K. C., Armstrong, A. M., Talin, A. A., Allerman, A. A., Crawford, M. H., Pickrell, G. W., Leonard, F.

“…Advanced GaN power devices are promising for many applications in high power electronics but performance limitations due to material quality in…”
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An Echocardiographic Study of Valvular Heart Disease Associated with Systemic Lupus Erythematosus by Roldan, Carlos A, Shively, Bruce K, Crawford, Michael H

“…Valvular disease is the most prevalent and clinically important form of cardiac involvement in patients with systemic lupus erythematosus, 1 – 4 but little is…”
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Anthropometric Variation Among Bering Sea Natives by Justice, Anne, Rubicz, Rohina, Chittoor, Geetha, Jantz, Richard L., Crawford, M. H.

“…Recent research indicates that anthropometrics can be used to study microevolutionary forces acting on humans. We examine the use of morphological traits in…”
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AlGaN/GaN quantum well ultraviolet light emitting diodes by Han, J., Crawford, M. H., Shul, R. J., Figiel, J. J., Banas, M., Zhang, L., Song, Y. K., Zhou, H., Nurmikko, A. V.

“…We report on the growth and characterization of ultraviolet GaN quantum well light emitting diodes. The room-temperature electroluminescence emission was…”
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