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Showing 1 to 12 of 17 entries
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Plasmonic-dielectric systems for high-order dispersionless slow or stopped subwavelength light.

Physical review letters

Karalis A, Joannopoulos JD, Soljacić M.
PMID: 19659357
Phys Rev Lett. 2009 Jul 24;103(4):043906. doi: 10.1103/PhysRevLett.103.043906. Epub 2009 Jul 24.

A material platform of multilayered surface-plasmon-dielectric-polariton systems is introduced, along with a new physical mechanism enabling simultaneous cancellation of group-velocity and attenuation dispersion to extremely high orders for subwavelength light of any small positive, negative, or zero group velocity....

Surface-plasmon-assisted guiding of broadband slow and subwavelength light in air.

Physical review letters

Karalis A, Lidorikis E, Ibanescu M, Joannopoulos JD, Soljacić M.
PMID: 16090954
Phys Rev Lett. 2005 Aug 05;95(6):063901. doi: 10.1103/PhysRevLett.95.063901. Epub 2005 Aug 02.

A class of axially uniform waveguides is introduced, employing a new mechanism to guide light inside a low-index dielectric material without the use of photonic band gap, and simultaneously exhibiting subwavelength modal size and very slow group velocity over...

Short-term outcome of propionic aciduria treated at presentation with N-carbamylglutamate: a retrospective review of four patients.

JIMD reports

Lévesque S, Lambert M, Karalis A, Melancon S, Russell L, Braverman N.
PMID: 23430860
JIMD Rep. 2012;2:97-102. doi: 10.1007/8904_2011_54. Epub 2011 Sep 06.

N-carbamylglutamate (NCG) has been reported to decrease ammonia levels in patients with propionic aciduria (PA) and methylmalonic aciduria (MMA), but reports on clinical outcomes remain scant. Here, we report a retrospective series of four patients with neonatal PA treated...

Exogenous PTH-Related Protein and PTH Improve Mineral and Skeletal Status in 25-Hydroxyvitamin D-1α-Hydroxylase and PTH Double Knockout Mice.

Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research

Xue Y, Zhang Z, Karaplis AC, Hendy GN, Goltzman And D, Miao D.
PMID: 32790166
J Bone Miner Res. 2020 Aug;35(8):1614-1616. doi: 10.1002/jbmr.4093. Epub 2020 Jul 01.

No abstract available.

Plasmonic Metasurface "Bullets" and other "Moving Objects": Spatiotemporal Dispersion Cancellation for Linear Passive Subwavelength Slow Light.

Physical review letters

Karalis A, Joannopoulos JD.
PMID: 31491152
Phys Rev Lett. 2019 Aug 09;123(6):067403. doi: 10.1103/PhysRevLett.123.067403.

A class of plasmonic metasurfaces is introduced with the ability to tailor the dispersion surface of the associated plasmon-polariton into striking novel shapes. Examples include dispersion surfaces with hyperbolic curves, with multiple van Hove singularities of various types or...

Metataxonomic Analysis of Grape Microbiota During Wine Fermentation Reveals the Distinction of Cyprus Regional .

Frontiers in microbiology

Kamilari E, Mina M, Karallis C, Tsaltas D.
PMID: 34630353
Front Microbiol. 2021 Sep 22;12:726483. doi: 10.3389/fmicb.2021.726483. eCollection 2021.

Wine production in Cyprus has strong cultural ties with the island's tradition, influencing local and foreign consumers' preferences and contributing significantly to Cyprus' economy. A key contributor to wine quality and sensorial characteristics development is the microbiota that colonizes...

Modeling alcohol-associated liver disease in a human Liver-Chip.

Cell reports

Nawroth JC, Petropolis DB, Manatakis DV, Maulana TI, Burchett G, Schlünder K, Witt A, Shukla A, Kodella K, Ronxhi J, Kulkarni G, Hamilton G, Seki E, Lu S, Karalis KC.
PMID: 34289365
Cell Rep. 2021 Jul 20;36(3):109393. doi: 10.1016/j.celrep.2021.109393.

Alcohol-associated liver disease (ALD) is a global health issue and leads to progressive liver injury, comorbidities, and increased mortality. Human-relevant preclinical models of ALD are urgently needed. Here, we leverage a triculture human Liver-Chip with biomimetic hepatic sinusoids and...

Discrete-mode cancellation mechanism for high-Q integrated optical cavities with small modal volume.

Optics letters

Karalis A, Johnson SG, Joannopoulos JD.
PMID: 15524390
Opt Lett. 2004 Oct 01;29(19):2309-11. doi: 10.1364/ol.29.002309.

A mechanism to reduce radiation loss from integrated optical cavities without a complete photonic bandgap is introduced and demonstrated. It is applicable to any device with a patterned substrate (including both low and high index-contrast systems), when it supports...

Collision-Free Advertisement Scheduling for IEEE 802.15.4-TSCH Networks.

Sensors (Basel, Switzerland)

Karalis A, Zorbas D, Douligeris C.
PMID: 31014002
Sensors (Basel). 2019 Apr 14;19(8). doi: 10.3390/s19081789.

IEEE802.15.4-time slotted channel hopping (TSCH) is a medium access control (MAC) protocol designed to support wireless device networking, offering high reliability and low power consumption, two features that are desirable in the industrial internet of things (IIoT). The formation...

A Case of Male Osteoporosis: A 37-Year-Old Man with Multiple Vertebral Compression Fractures.

Case reports in endocrinology

Radi S, Karaplis AC.
PMID: 28791186
Case Rep Endocrinol. 2017;2017:6328524. doi: 10.1155/2017/6328524. Epub 2017 Jul 16.

While the contributing role of testosterone to bone health is rather modest compared to other factors such as estradiol levels, male hypogonadism is associated with low bone mass and fragility fractures. Along with stimulating physical puberty by achieving virilization...

Transparent and 'opaque' conducting electrodes for ultra-thin highly-efficient near-field thermophotovoltaic cells.

Scientific reports

Karalis A, Joannopoulos JD.
PMID: 29070865
Sci Rep. 2017 Oct 25;7(1):14046. doi: 10.1038/s41598-017-13540-8.

Transparent conducting electrodes play a fundamental role in far-field PhotoVoltaic systems, but have never been thoroughly investigated for near-field applications. Here we show, in the context of near-field planar ultra-thin ThermoPhotoVoltaic cells using surface-plasmon-polariton thermal emitters, that the resonant...

'Squeezing' near-field thermal emission for ultra-efficient high-power thermophotovoltaic conversion.

Scientific reports

Karalis A, Joannopoulos JD.
PMID: 27363522
Sci Rep. 2016 Jul 01;6:28472. doi: 10.1038/srep28472.

We numerically demonstrate near-field planar ThermoPhotoVoltaic systems with very high efficiency and output power, at large vacuum gaps. Example performances include: at 1200 °K emitter temperature, output power density 2 W/cm(2) with ~47% efficiency at 300 nm vacuum gap;...

Showing 1 to 12 of 17 entries