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Search Publications by: Vladimir Aksyuk (Fed)

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Displaying 51 - 74 of 74

Diffraction limited focusing and directing of gap plasmons by a metal-dielectric-metal lens

August 24, 2015
Author(s)
Brian S. Dennis, David Czaplewski, Michael Haftel, Daniel Lopez, Girsh Blumberg, Vladimir Aksyuk
Passive optical elements can play key roles in photonic applications such as plasmonic integrated circuits. Here we experimentally demonstrate passive gap-plasmon focusing and directing in two-dimensions. This is accomplished using a high numerical

Characterization of Electrothermal Actuation with Nanometer and Microradian Precision

June 21, 2015
Author(s)
Craig R. Copeland, Craig D. McGray, Jon C. Geist, Vladimir A. Aksyuk, Samuel M. Stavis
A recently introduced particle-tracking method was used to measure the single motion cycles of an electrothermal actuator with nanometer and microradian precision. Driving the actuator with a low-noise input induced deterministic motion that was perfectly

Small footprint nano-mechanical plasmonic phase modulators

June 21, 2015
Author(s)
Vladimir A. Aksyuk, Brian S. Dennis, Michael Haftel, David Czaplewski, Daniel Lopez, Girsh Blumberg
The authors’ recent Nature Photonics article titled “Compact Nano-Mechanical Plasmonic Phase Modulators” [1] is reviewed which reports a new phase modulation principle with experimental demonstration of a 23 μm long non-resonant modulator having 1.5 π rad

Compact Nano-Mechanical Plasmonic Phase Modulators

April 1, 2015
Author(s)
Brian S. Dennis, Michael Haftel, David Czaplewski, Daniel Lopez, Girsh Blumberg, Vladimir Aksyuk
The miniaturization of photonic devices is fundamentally limited by the index of refraction of the constituent materials if light is confined in dielectric nanostructures. By coupling electromagnetic fields to metal's free electrons plasmonic devices

Near-Field Asymmetries in Plasmonic Resonators

February 12, 2015
Author(s)
Vladimir Aksyuk, Basudev Lahiri, Glenn Holland, Andrea Centrone
Surface-enhanced infrared absorption (SEIRA) spectroscopy exploits the locally enhanced field surrounding plasmonic metamaterials to increase the sensitivity of infrared spectroscopy. Light polarization and incident angle are important factors for exciting

Strong Casimir force reduction by metallic surface nanostructuring

September 27, 2013
Author(s)
Francesco Intravaia, Stefan T. Koev, Il Woong Jung, Albert A. Talin, Paul S. Davids, Ricardo Decca, Vladimir Aksyuk, Diego A. Dalvit, Daniel Lopez
The Casimir force is a quantum-mechanical interaction arising from vacuum fluctuations of the electromagnetic (EM) field and is technologically significant in micro- and nanomechanical systems. Despite rapid progress in nanophotonics, the goal of

Silicon Micromachines for Fun and Profit

December 12, 2012
Author(s)
David Bishop, Flavio Pardo, Cris Bolle, Randy Giles, Vladimir Aksyuk
Over the last decade or so a group of us, while working at Bell Labs, have been able to develop a large number of silicon micromachines for a wide range of applications. In this article, which is part of a special volume to celebrate the career of

Giant piezoelectricity in PMN-PT thin films: Beyond PZT

November 1, 2012
Author(s)
S. H. Baek, M. S. Rzchowski, Vladimir Aksyuk
Micro-electromechanical systems (MEMS) incorporating piezoelectric layers provide active transduction between electrical and mechanical energy, which enables highly sensitive sensors and low-voltage driven actuators surpassing the passive operation of

Quasianalytical modal approach for computing Casimir interactions in periodic nanostructures

October 3, 2012
Author(s)
Francesco Intravaia, Paul S. Davids, Ricardo Decca, Vladimir Aksyuk, Daniel Lopez, Diego A. Dalvit
We present an almost fully analytical technique for computing Casimir interactions between 1D periodic lamellar gratings based on a modal approach. Our method improves on previous work on Casimir modal approaches for nanostructures by using the exact form

Probing coherence in microcavity frequency combs via optical pulse shaping

August 29, 2012
Author(s)
Fahmida Ferdous, Houxun H. Miao, Pei-Hsun Wang, Daniel E. Leaird, Kartik Srinivasan, Lei Chen, Vladimir Aksyuk, Andrew M. Weiner
Recent investigations of microcavity frequency combs based on cascaded four-wave mixing have revealed a link between the evolution of the optical spectrum and the observed temporal coherence. Here we study a silicon nitride microresonator for which the

A Microelectromechanically Controlled Cavity Optomechanical Sensing System

July 17, 2012
Author(s)
Houxun H. Miao, Kartik A. Srinivasan, Vladimir A. Aksyuk
Microelectromechanical systems (MEMS) have been applied to many measurement problems in physics, chemistry, biology and medicine. In parallel, cavity optomechanical systems have achieved quantum-limited displacement sensitivity and ground state cooling of

An Efficient Large-Area Grating Coupler for Surface Plasmon Polaritons

June 1, 2012
Author(s)
Stefan T. Koev, Amit K. Agrawal, Henri J. Lezec, Vladimir A. Aksyuk
We report the design, fabrication and characterization of a periodic grating of shallow rectangular grooves in a metallic film with the goal of maximizing the coupling efficiency of an extended plane wave (PW) of visible or near-IR frequency light into a

Giant piezoelectricity on Si for hyperactive MEMS

November 18, 2011
Author(s)
S. H. Baek, J. Park, D. M. Kim, Vladimir Aksyuk, R. R. Das, S. D. Bu, D. A. Felker, J. Lettieri, V Vaithyanathan, S. Bharadwaja, N. Bassiri-Gharb, Y. B. Chen, H. P. Sun, C. M. Folkman, H. W. Jang, D. J. Kreft, S K. Streiffer, R. Ramesh, X Q. Pan, S Trolier-McKinstry, Darrell G. Schlom, M. S. Rzchowski, R. Blick, C. B. Eom
Smart materials that can sense, manipulate, and position are crucial to the functionality of micro- and nano-machines [1-2]. Integration of single crystal piezoelectric films on silicon offers the opportunity of high performance piezoelectric

Enhanced coupling between light and surface plasmons by nanostructured Fabry-Perot resonator

September 26, 2011
Author(s)
Brian S. Dennis, Vladimir Aksyuk, Michael Haftel, Stefan T. Koev, Girsh Blumberg
It is recognized that surface plasmons (SPs),which can be present on particulate, smooth, or corrugated metallic surfaces, have enormous potential in the fields of novel nano-optical and opto-electronic devices, as well as in spectroscopic, biological, and

CAVITY OPTOMECHANICAL SENSORS

June 5, 2011
Author(s)
Houxun H. Miao, Kartik A. Srinivasan, Matthew T. Rakher, Marcelo I. Davanco, Vladimir A. Aksyuk
We report a novel type of fully integrated optomechanical sensor and demonstrate high sensitivity mechanical displacement measurements on chip. We sense the motion of micro and nano-mechanical devices by near field coupling them to high quality factor