نتایج جستجو برای: nanobeam

تعداد نتایج: 475  

Journal: :Optics express 2009
Ian B Burgess Yinan Zhang Murray W McCutcheon Alejandro W Rodriguez Jorge Bravo-Abad Steven G Johnson Marko Loncar

We propose a scheme for efficient cavity-enhanced nonlinear THz generation via difference-frequency generation (DFG) processes using a triply resonant system based on photonic crystal cavities. We show that high nonlinear overlap can be achieved by coupling a THz cavity to a doubly-resonant, dual-polarization near-infrared (e.g. telecom band) photonic-crystal nanobeam cavity, allowing the mixin...

2015
Rick Leijssen Ewold Verhagen

Coupling between mechanical and optical degrees of freedom is strongly enhanced by using subwavelength optical mode profiles. We realize an optomechanical system based on a sliced photonic crystal nanobeam, which combines such highly confined optical fields with a low-mass mechanical mode. Analyzing the transduction of motion and effects of radiation pressure we find the system exhibits a photo...

2013
Mario Stefenelli Juraj Todt Angelika Riedl Werner Ecker Thomas Müller Rostislav Daniel Manfred Burghammer Jozef Keckes

Novel scanning synchrotron cross-sectional nanobeam and conventional laboratory as well as synchrotron Laplace X-ray diffraction methods are used to characterize residual stresses in exemplary 11.5 µm-thick TiN coatings. Both real and Laplace space approaches reveal a homogeneous tensile stress state and a very pronounced compressive stress gradient in as-deposited and blasted coatings, respect...

2008
J. Dorignac A. Gaidarzhy P. Mohanty

We develop a simple continuum model to analyze the vibrational modes of a nanomechanical multielement structure. In this model, arrays of submicron cantilevers located symmetrically on both sides of the central clamped-clamped nanobeam are replaced by a continuum. In this approach, the equations of motion of the structure become exactly solvable. Our analytical results capture the main features...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
David O Bracher Xingyu Zhang Evelyn L Hu

Point defects in silicon carbide are rapidly becoming a platform of great interest for single-photon generation, quantum sensing, and quantum information science. Photonic crystal cavities (PCCs) can serve as an efficient light-matter interface both to augment the defect emission and to aid in studying the defects' properties. In this work, we fabricate 1D nanobeam PCCs in 4H-silicon carbide wi...

2010
Marian Florescu Salvatore Torquato Paul J. Steinhardt

Related Articles Interplay of index contrast with periodicity in polymer photonic crystals Appl. Phys. Lett. 99, 261913 (2011) Off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity Appl. Phys. Lett. 99, 251907 (2011) Phase-locking regimes of photonic crystal nanocavity laser arrays Appl. Phys. Lett. 99, 251104 (2011) Field confinement and quality factor of th...

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