Results 51 to 60 of about 32,968 (189)

Micro-tip Cantilever as Low Frequency Microphone

Scientific Reports, 2018
We propose a very compact diaphragm free optical microphone consisting a tapered micro-tip in cantilever configuration for detection of low frequency acoustic signals.
Sumit Dass, Rajan Jha
doaj   +1 more source

Heavily-doped Germanium on Silicon with Activated Doping Exceeding 1020 cm−3 as an Alternative to Gold for Mid-infrared Plasmonics [PDF]

, 2017
Ge-on-Si has been demonstrated as a platform for Si foundry compatible plasmonics. We use laser thermal annealing to demonstrate activated doping levels >1020 cm-3 which allows most of the 3 to 20 μm mid-infrared sensing window to be covered with ...
Baldassarre, Leonetta, Ballabio, Andrea, Biagioni, Paolo, Frigerio, Jacopo, Gallacher, Kevin, Giliberti, Valeria, Huet, Karim, Isella, Giovanni, Mazzamuto, Fulvio, Milazzo, Ruggero, Napolitani, Enrico, Ortolani, Michele, Paul, Douglas J., Pellegrini, G.   +13 more
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PLASMONIC LASERS [PDF]

, 2009
Surface plasmon polaritons (SPP)-based subwavelength metallic structures for laser amplification, emission, and collimation were introduced in this chapter. The plasmonic structures here act as a type of microlens which is integrated together with the laser for beam shaping or collimation.
openaire   +1 more source

Classical and Quantum Plasmonics in Graphene Nanodisks: the Role of Edge States [PDF]

, 2014
Edge states are ubiquitous for many condensed matter systems with multicomponent wave functions. For example, edge states play a crucial role in transport in zigzag graphene nanoribbons.
Christensen, Thomas, Jauho, Antti-Pekka, Mortensen, N. Asger, Wang, Weihua, Wubs, Martijn   +4 more
core   +2 more sources

Transformation Optics for Plasmonics

, 2010
A new strategy to control the flow of surface plasmon polaritons at metallic surfaces is presented. It is based on the application of the concept of Transformation Optics to devise the optical parameters of the dielectric medium placed on top of the ...
Alù A., Barnes W. L., Baumeier B., Bozhevolnyi S. I., Cai W., Ditlbacher H., Gabrielli L. H., Gramotnev D. K., Han S., Kildishev A. V., Knupp P., Leonhardt U., Leonhardt U., Li J., Liu R., Maier S. A., Pendry J. B., Rahm M., Rahm M., Ramakrishna S. A., Roberts D. A., Schurig D., Schurig D., Smolyaninov I. I., Valentine J., Ward A. J., Ziolkowski R. W.   +26 more
core   +2 more sources

“Deterministic” Quantum Plasmonics [PDF]

Nano Letters, 2010
We demonstrate “deterministic” launching of propagative quantum surface-plasmon polaritons at freely chosen positions on gold plasmonic receptacles. This is achieved by using as a plasmon launcher a near-field scanning optical source made of a diamond nanocrystal with two nitrogen-vacancy color-center occupancy.
Cuche, Aurelien, Mollet, Oriane, Drezet, Aurélien, Huant, Serge   +3 more
openaire   +4 more sources

Nonlinear plasmonics at high temperatures

, 2016
We solve the Maxwell and heat equations self-consistently for metal nanoparticles under intense continuous wave (CW) illumination. Unlike previous studies, we rely on {\em experimentally}-measured data for the metal permittivity for increasing ...
Chu, Shi-Wei, Sivan, Yonatan
core   +2 more sources

Plasmonic aerosols

Physical Review B, 2019
Plasmonic nanoparticles resonantly couple to and confine light below the diffraction limit. This mechanism has enabled a modern renaissance in optical materials, with potential applications ranging from sensing and circuitry to renewable energies and medicines.
Geldmeier, Jeffrey, Johns, Paul, Greybush, Nicholas J., Naciri, Jawad, Fontana, Jake   +4 more
openaire   +3 more sources

Spacer layer engineering for ultrasensitive Hg(II) detection on surface plasmon-coupled emission platform

Nanotechnology Reviews, 2017
In this work, we demonstrate for the first time the ultrasensitive detection of Hg2+ ions with femtomolar sensitivity in water samples with the use of the surface plasmon-coupled emission (SPCE) platform.
Badiya Pradeep Kumar, Jayakumar Tejkiran Pindi, Srinivasan Venkatesh, Ramamurthy Sai Sathish   +3 more
doaj   +1 more source

A tunable plasmonic refractive index sensor with nanoring-strip graphene arrays

, 2018
In this paper, a tunable plasmonic refractive index sensor with nanoring-strip graphene arrays is numerically investigated by the finite difference time domain (FDTD) method.
Cen, Chunlian, Chen, Xifang, Huang, Jing, Liang, Cuiping, Lin, Hang, Liu, Jiangwei, Tang, Yongjian, Xiao, Shuyuan, Ye, Xin, Yi, Yong, Yi, Zao   +10 more
core   +1 more source