Search Results - "Jokerst, Nan M."
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1
Infrared metamaterial phase holograms
Published in Nature materials (18-03-2012)“…As a result of advances in nanotechnology and the burgeoning capabilities for fabricating materials with controlled nanoscale geometries, the traditional…”
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2
Wavelength optimization for quantitative spectral imaging of breast tumor margins
Published in PloS one (16-04-2013)“…A wavelength selection method that combines an inverse Monte Carlo model of reflectance and a genetic algorithm for global optimization was developed for the…”
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3
Plasmon Ruler with Angstrom Length Resolution
Published in ACS nano (23-10-2012)“…We demonstrate a plasmon nanoruler using a coupled film nanoparticle (film-NP) format that is well-suited for investigating the sensitivity extremes of…”
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4
Concentric Multipixel Silicon Photodiode Array Probes for Spatially Resolved Diffuse Reflectance Spectroscopy
Published in IEEE journal of selected topics in quantum electronics (01-05-2016)“…Spatially resolved diffuse reflectance (SRDR) measurements provide photon path information, and enable depth-resolved tissue analysis. This paper introduces an…”
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5
Role of surface electromagnetic waves in metamaterial absorbers
Published in Optics express (21-03-2016)“…Metamaterial absorbers have been demonstrated across much of the electromagnetic spectrum and exhibit both broad and narrow-band absorption for normally…”
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6
High responsivity, low dark current, heterogeneously integrated thin film Si photodetectors on rigid and flexible substrates
Published in Optics express (10-03-2014)“…We report thin film single crystal silicon photodetectors (PDs), composed of 13- 25 μm thick silicon, heterogeneously bonded to transparent Pyrex® and flexible…”
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7
Planar, flattened Luneburg lens at infrared wavelengths
Published in Optics express (16-01-2012)“…Employing artificially structured metamaterials provides a means of circumventing the limits of conventional optical materials. Here, we use transformation…”
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8
Design and fabrication of a metamaterial gradient index diffraction grating at infrared wavelengths
Published in Optics express (21-11-2011)“…We demonstrate the design, fabrication and characterization of an artificially structured, gradient index metamaterial with a linear index variation of Δn ~…”
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9
Flexible silicon sensors for diffuse reflectance spectroscopy of tissue
Published in Biomedical optics express (01-03-2017)“…Diffuse reflectance spectroscopy (DRS) is being used in exploratory clinical applications such as cancer margin assessment on excised tissue. However, when…”
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10
Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves
Published in Applied physics letters (01-09-2008)“…We demonstrate fast electrical modulation of freely propagating terahertz waves at room temperature using hybrid metamaterial devices. The devices are planar…”
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11
Electronically reconfigurable metal-on-silicon metamaterial
Published in Physical review. B, Condensed matter and materials physics (08-08-2012)“…Reconfigurable metamaterial-based apertures can play a unique role in both imaging and in beam-forming applications, where current technology relies mostly on…”
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12
Methods of extraction of optical properties from diffuse reflectance measurements of ex-vivo human colon tissue using thin film silicon photodetector arrays
Published in Biomedical optics express (01-11-2019)“…Spatially resolved diffuse reflectance spectroscopy (SRDRS) is a promising technique for characterization of colon tissue. Herein, two methods for extracting…”
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13
Spatially resolved diffuse reflectance spectroscopy endoscopic sensing with custom Si photodetectors
Published in Biomedical optics express (01-03-2018)“…Early detection and surveillance of disease progression in epithelial tissue is key to improving long term patient outcomes for colon and esophageal cancers,…”
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14
Mapping active strain using terahertz metamaterial laminates
Published in APL photonics (01-11-2021)“…The ability to image strain fields in composite materials is an indispensable necessity for structural health monitoring. Embedded electromagnetic…”
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15
Arbitrary birefringent metamaterials for holographic optics at λ = 1.55 μm
Published in Optics express (04-11-2013)“…This paper presents an optical element capable of multiplexing two diffraction patterns for two orthogonal linear polarizations, based on the use of…”
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16
Chip Scale Optical Microresonator Sensors Integrated With Embedded Thin Film Photodetectors on Electrowetting Digital Microfluidics Platforms
Published in IEEE sensors journal (01-06-2012)“…Miniaturized, portable, sensitive, and low cost sensing systems are important for medical and environmental diagnostic and monitoring applications. Chip scale…”
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17
Miniature spectral imaging device for wide-field quantitative functional imaging of the morphological landscape of breast tumor margins
Published in Journal of biomedical optics (01-02-2017)“…We have developed a portable, breast margin assessment probe leveraging diffuse optical spectroscopy to quantify the morphological landscape of breast tumor…”
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18
Strain Sensing with Metamaterial Composites
Published in Advanced optical materials (01-05-2019)“…Mapping strain fields in visually opaque structural composites—for which failure is often sudden, irreparable, and even catastrophic—requires techniques to…”
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19
Plasmonic multi-mode interference couplers
Published in Optics express (28-09-2009)“…Plasmonic multi-mode interference (MMI) couplers have been investigated both numerically and experimentally at the telecommunication wavelength of 1.55 mum. In…”
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20
Propulsion and assembly of remotely powered p-type silicon microparticles
Published in APL materials (01-12-2018)“…In this letter, we discuss how to prepare millions of uniform p-type silicon (Si) microparticles using top-down fabrication processes and how to remotely…”
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