نتایج جستجو برای: nanocavity

تعداد نتایج: 602  

2016
Wei Wang Jiasen Zhang Xiaozhou Che Guogang Qin

A new type of light trapping structure utilizing ring-shaped metallic nanocavity arrays is proposed for the absorption enhancement in ultrathin solar cells with few photonic waveguide modes. Dozens of times of broadband absorption enhancement in the spectral range of 700 to 1100 nm is demonstrated in an ultrathin Si3N4/c-Si/Ag prototype solar cell by means of finite-difference time-domain (FDTD...

2009
G. S. Hwang M. Kaviany

The effect of adsorption on momentum au and thermal aT accommodation coefficients and effective thermal conductivity kf of Ar vapor-filled Pt nanogap and nanocavity is examined using nonequilibrium molecular dynamics MD simulations. For the accommodation coefficients, the increase in solid-fluid or fluid-fluid interatomic interactions within adsorbed layer causes transitions in magnitudes of au...

Journal: :Applied optics 2009
Chengkuo Lee Jayaraj Thillaigovindan

We present in-depth discussion of the design and optimization of a nanomechanical sensor using a silicon cantilever comprising a two-dimensional photonic crystal (PC) nanocavity resonator arranged in a U-shaped silicon PC waveguide. For example, the minimum detectable strain, vertical deflection at the cantilever end, and force load are observed as 0.0133%, 0.37 mum, and 0.0625 muN, respectivel...

2009
Qiang Lin Jessie Rosenberg Darrick Chang Ryan Camacho Matt Eichenfield Kerry J. Vahala Oskar Painter

The combination of the large per-photon optical force and small motional mass achievable in nanocavity optomechanical systems results in strong dynamical back-action between mechanical motion and the cavity light field. In this Article, we study the optical control of mechanical motion within two different nanocavity structures, a zipper nanobeam photonic crystal cavity and a double-microdisk w...

2017
Tim Schröder Matthew E Trusheim Michael Walsh Luozhou Li Jiabao Zheng Marco Schukraft Alp Sipahigil Ruffin E Evans Denis D Sukachev Christian T Nguyen Jose L Pacheco Ryan M Camacho Edward S Bielejec Mikhail D Lukin Dirk Englund

The controlled creation of defect centre-nanocavity systems is one of the outstanding challenges for efficiently interfacing spin quantum memories with photons for photon-based entanglement operations in a quantum network. Here we demonstrate direct, maskless creation of atom-like single silicon vacancy (SiV) centres in diamond nanostructures via focused ion beam implantation with ∼32 nm latera...

Journal: :Optics express 2010
Tsan-Wen Lu Pin-Tso Lin Kuan-Un Sio Po-Tsung Lee

We propose a point-shifted nanocavity based on square lattice photonic crystal, which sustains a lowest-order whispering-gallery (WG) mode. In simulation, the optimized WG mode (quality (Q) factor approximately 14,000) in point-shifted nanocavity can be with smaller mode volume (approximately 5.5(lambda/2n)(3)) but larger nano-post tolerance than those in single-defect cavity design. From well-...

Journal: :Optics Letters 2013

Journal: :Soft Matter 2021

Computer simulations reveal the effects of crowding and confinement on organization dynamics a system two polymers in box-like nanocavity.

Journal: :Nano letters 2009
Volker J Sorger Rupert F Oulton Jie Yao Guy Bartal Xiang Zhang

We experimentally demonstrate a novel, all-plasmonic nanoscopic cavity exhibiting Q-factors up to 200 at visible frequencies. The Fabry-Pérot type resonator uses tall metallic fins that reflect up to 98% of incident surface plasmon to concentrate light within a subwavelength cavity mode. High aspect ratio metal fins, constructed using lithography and electroplating, reduce surface plasmon scatt...

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