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Showing 1 to 12 of 297 entries
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Integration of Faradaic electrochemical impedance spectroscopy into a scalable surface plasmon biosensor for in tandem detection.

Optics express

Hong B, Sun A, Pang L, Venkatesh AG, Hall D, Fainman Y.
PMID: 26698504
Opt Express. 2015 Nov 16;23(23):30237-49. doi: 10.1364/OE.23.030237.

We present an integrated label-free biosensor based on surface plasmon resonance (SPR) and Faradaic electrochemical impedance spectroscopy (f-EIS) sensing modalities, for the simultaneous detection of biological analytes. Analyte detection is based on the angular spectroscopy of surface plasmon resonance...

Hyperbolic metamaterials for dispersion-assisted directional light emission.

Nanoscale

Ferrari L, Smalley JST, Fainman Y, Liu Z.
PMID: 28639636
Nanoscale. 2017 Jul 06;9(26):9034-9048. doi: 10.1039/c7nr00980a.

A novel method is presented to outcouple high spatial frequency (large-k) waves from hyperbolic metamaterials (HMMs) without the use of a grating. This approach relies exclusively on dispersion engineering, and enables preferential power extraction from the top or from...

High-Quality, Ultraconformal Aluminum-Doped Zinc Oxide Nanoplasmonic and Hyperbolic Metamaterials.

Small (Weinheim an der Bergstrasse, Germany)

Riley CT, Smalley JS, Post KW, Basov DN, Fainman Y, Wang D, Liu Z, Sirbuly DJ.
PMID: 26715115
Small. 2016 Feb 17;12(7):892-901. doi: 10.1002/smll.201501797. Epub 2015 Dec 30.

Aluminum-doped zinc oxide (AZO) is a tunable low-loss plasmonic material capable of supporting dopant concentrations high enough to operate at telecommunication wavelengths. Due to its ultrahigh conformality and compatibility with semiconductor processing, atomic layer deposition (ALD) is a powerful...

Psychogeriatric Services at Certified Home Health Agencies: Case Reports and Guidelines for Psychiatric Consultants.

The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry

Kennedy GJ, Katsnelson N, Laitman L, Alvarez E.
PMID: 28531068
Am J Geriatr Psychiatry. 1995 Autumn;3(4):339-347. doi: 10.1097/00019442-199503040-00009. Epub 2012 Sep 27.

Because of the unmet mental health needs of older persons in the community, Medicare-certified home health agencies are increasingly taking the role of health providers. Here the authors review their experience and argue that the pathology seen in home...

Folded shift multiplexing.

Optics letters

Moser C, Liu W, Fainman Y, Psaltis D.
PMID: 12816239
Opt Lett. 2003 Jun 01;28(11):899-901. doi: 10.1364/ol.28.000899.

Shift multiplexing is a holographic recording method that uses a spherical reference wave. We extend the principle to a thin slab of holographic material that acts as a waveguide. Total internal reflection folds the reference spherical beam in one...

Could stress cause psychosis in individuals vulnerable to schizophrenia?.

CNS spectrums

Corcoran C, Mujica-Parodi L, Yale S, Leitman D, Malaspina D.
PMID: 15254447
CNS Spectr. 2002 Jan;7(1):33-8, 41-2. doi: 10.1017/s1092852900022240.

It has long been considered that psychosocial stress plays a role in the expression of symptoms in schizophrenia (SZ), as it interacts with latent neural vulnerability that stems from genetic liability and early environmental insult. Advances in the understanding...

Resonant-cavity-enhanced p-i-n photodiode with a broad quantum-efficiency spectrum by use of an anomalous-dispersion mirror.

Applied optics

Chen CH, Tetz K, Fainman Y.
PMID: 16237927
Appl Opt. 2005 Oct 10;44(29):6131-40. doi: 10.1364/ao.44.006131.

A resonant-cavity-enhanced photodiode with broad filter transmittance and high quantum efficiency was numerically designed and analyzed, fabricated, and validated experimentally. We show theoretically that the quantum-efficiency spectrum broadens because of anomalous dispersion of the reflection phase of a mirror...

Interference microscopy for three-dimensional imaging with wavelength-to-depth encoding.

Optics letters

Li G, Sun PC, Lin PC, Fainman Y.
PMID: 18066260
Opt Lett. 2000 Oct 15;25(20):1505-7. doi: 10.1364/ol.25.001505.

A novel interference microscope for three-dimensional (3D) imaging based on a wavelength-to-depth encoding technique is presented. Wavelength-to-depth encoding is realized by use of a diffractive lens and wavelength tuning. A high depth resolution of 0.71 mum is obtained with...

Nonvolatile photorefractive spectral holography.

Optics letters

Oba K, Sun PC, Fainman Y.
PMID: 18087382
Opt Lett. 1998 Jun 15;23(12):915-7. doi: 10.1364/ol.23.000915.

We demonstrate nonvolatile storage of femtosecond pulses in a photorefractive LiNbO(3) crystal with recording and readout of spectral holograms at wavelengths of 460 and 920 nm, respectively. No degradation was observed after 24 h of continuous readout. We also...

Computerized design and generation of space-variant holographic filters: 2: Applications of space-variant filters to optical computing.

Applied optics

Ambs P, Fainman Y, Esener S, Lee SH.
PMID: 20539646
Appl Opt. 1988 Nov 15;27(22):4761-5. doi: 10.1364/AO.27.004761.

Holographic optical elements (HOEs) of space-variant impulse response have been designed and generated using a computerized optical system. HOEs made of dichromated gelatin have been produced and used for spatial light modulator defect removal and optical interconnects. Experimental performance...

Twisted chains of resonant particles: optical polarization control, waveguidance, and radiation.

Optics letters

Van Orden D, Fainman Y, Lomakin V.
PMID: 20680064
Opt Lett. 2010 Aug 01;35(15):2579-81. doi: 10.1364/OL.35.002579.

Linear chains of metallic nanoparticles that are sequentially rotated about the chain axis display interesting polarization-sensitive optical properties. Such twisted chains posses and extend properties of chiral gratings and general periodic gratings. They are characterized by high anisotropy and...

Diffractive lenses for chromatic confocal imaging.

Applied optics

Dobson SL, Sun PC, Fainman Y.
PMID: 18259273
Appl Opt. 1997 Jul 10;36(20):4744-8. doi: 10.1364/ao.36.004744.

A diffractive zone plate provides a highly linear wavelength-to-depth coding, allowing for nonmechanical depth scanning in a confocal microscope. This chromatic confocal microscope, constructed with 40x and 60x objectives, achieves axial position changes of 55 and 25 mum, respectively,...

Showing 1 to 12 of 297 entries