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Showing 1 to 12 of 33 entries
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High-Temperature Electromechanical Characterization of AlN Single Crystals.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

Kim T, Kim J, Dalmau R, Schlesser R, Preble E, Jiang X.
PMID: 26759848
IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Oct;62(10):1880-7. doi: 10.1109/tuffc.2015.007252.

Hexagonal AlN is a non-ferroelectric material and does not have any phase transition up to its melting point (>2000°C), which indicates the potential use of AlN for high-temperature sensing. In this work, the elastic, dielectric, and piezoelectric constants of...

Aluminum nitride integrated photonics platform for the ultraviolet to visible spectrum.

Optics express

Lu TJ, Fanto M, Choi H, Thomas P, Steidle J, Mouradian S, Kong W, Zhu D, Moon H, Berggren K, Kim J, Soltani M, Preble S, Englund D.
PMID: 29716039
Opt Express. 2018 Apr 30;26(9):11147-11160. doi: 10.1364/OE.26.011147.

We demonstrate a wide-bandgap semiconductor photonics platform based on nanocrystalline aluminum nitride (AlN) on sapphire. This photonics platform guides light at low loss from the ultraviolet (UV) to the visible spectrum. We measure ring resonators with intrinsic quality factor...

Risk factors for endophthalmitis after cataract surgery in diabetic patients: a case control study.

International journal of ophthalmology

Silpa-Archa S, Papirachnart A, Singhanetr P, Preble JM.
PMID: 30918810
Int J Ophthalmol. 2019 Mar 18;12(3):417-423. doi: 10.18240/ijo.2019.03.11. eCollection 2019.

AIM: To identify risk factors associated with post-cataract surgery endophthalmitis (PCE) in type 2 diabetic patients.METHODS: A hospital-based retrospective case-control study was conducted on 194 type 2 diabetic patients undergoing cataract surgery in Rajavithi Hospital from January 2007 to...

Improving handover competency in preclinical medical and health professions students: establishing the reliability and construct validity of an assessment instrument.

BMC medical education

Michael M, Griggs AC, Shields IH, Sadighi M, Hernandez J, Chan C, McHugh M, Nichols BE, Joshi K, Testa D, Raj S, Preble R, Lazzara EH, Greilich PE.
PMID: 34600497
BMC Med Educ. 2021 Oct 02;21(1):518. doi: 10.1186/s12909-021-02943-x.

BACKGROUND: As part of the worldwide call to enhance the safety of patient handovers of care, the Association of American Medical Colleges (AAMC) requires that all graduating students "give or receive a patient handover to transition care responsibly" as...

Homonymous Horizontal Sectoranopia Caused by an Occipital Lobe Infarct.

Neuro-ophthalmology (Aeolus Press)

Preble JM, Epstein A, Tannir J, Tomsak R.
PMID: 32395157
Neuroophthalmology. 2019 Mar 11;44(2):104-107. doi: 10.1080/01658107.2019.1584225. eCollection 2020 Apr.

Homonymous horizontal sectoranopia is a rare visual field defect that characteristically occurs after damage to the lateral geniculate nucleus (LGN). While there are many reports of homonymous horizontal sectoranopia resulting from LGN damage, there are very few reports of...

Application of Nomarski interference contrast microscopy as a thickness monitor in the preparation of transparent, SiC-based, cross-sectional TEM samples.

Ultramicroscopy

Preble EA, McLean HA, Kiesel SM, Miraglia P, Albrecht M, Davis RF.
PMID: 12213028
Ultramicroscopy. 2002 Aug;92(3):265-71. doi: 10.1016/s0304-3991(02)00142-0.

Reflected light optical microscopy using a Nomarski prism and a differential interference contrast filter have been employed in concert to achieve a technique that provides an accurate color reference for thickness during the dimpling and ion milling of transparent...

Spontaneous emergence of periodic patterns in a biologically inspired simulation of photonic structures.

Physical review letters

Gondarenko A, Preble S, Robinson J, Chen L, Lipson H, Lipson M.
PMID: 16712077
Phys Rev Lett. 2006 Apr 14;96(14):143904. doi: 10.1103/PhysRevLett.96.143904. Epub 2006 Apr 13.

We simulate an evolutionary process in the lab for designing a novel high confinement photonic structure, starting with a set of completely random patterns, with no insight on the initial geometrical pattern. We show a spontaneous emergence of periodical...

Four-Fold Space.

Science (New York, N.Y.)

Preble WP.
PMID: 17769690
Science. 1892 May 27;19(486):304-5. doi: 10.1126/science.ns-19.486.304.

No abstract available.

Inducing photonic transitions between discrete modes in a silicon optical microcavity.

Physical review letters

Dong P, Preble SF, Robinson JT, Manipatruni S, Lipson M.
PMID: 18232983
Phys Rev Lett. 2008 Jan 25;100(3):033904. doi: 10.1103/PhysRevLett.100.033904. Epub 2008 Jan 25.

We show the existence of direct photonic transitions between modes of a silicon optical microcavity spaced apart in wavelength by over 8 nm. This is achieved by using ultrafast tuning of the refractive index of the cavity over a...

Ultrafast all-optical modulation on a silicon chip.

Optics letters

Preble SF, Xu Q, Schmidt BS, Lipson M.
PMID: 16279460
Opt Lett. 2005 Nov 01;30(21):2891-3. doi: 10.1364/ol.30.002891.

We experimentally demonstrate ultrafast all-optical modulation using a micrometer-sized silicon photonic integrated device. The device transmission is strongly modulated by photoexcited carriers generated by low-energy pump pulses. A p-i-n junction is integrated on the structure to permit control of...

Analysis of Three-Dimensional Choroidal Volume with Enhanced Depth Imaging Findings in Patients with Recurrent Vogt-Koyanagi-Harada Disease.

Current eye research

Silpa-Archa S, Ittharat W, Chotcomwongse P, Preble JM, Foster CS.
PMID: 33215546
Curr Eye Res. 2021 Jul;46(7):1010-1017. doi: 10.1080/02713683.2020.1849732. Epub 2020 Nov 20.

No abstract available.

Roosting ecology of endangered plant-roosting bats on Okinawa Island: Implications for bat-friendly forestry practices.

Ecology and evolution

Preble JH, Vincenot CE, Saito K, Ohte N.
PMID: 34707831
Ecol Evol. 2021 Sep 17;11(20):13961-13971. doi: 10.1002/ece3.8101. eCollection 2021 Oct.

Roosting information is crucial to guiding bat conservation and bat-friendly forestry practices. The Ryukyu tube-nosed bat

Showing 1 to 12 of 33 entries