Casimir forces in the time domain II: Applications (2009)
McCauley, Alexander P., Rodriguez, Alejandro W., Joannopoulos, John D., Johnson, Steven G.
Our preceding paper introduced a method to compute Casimir forces in arbitrary geometries and for arbitrary materials that was based on a finite-difference time-domain (FDTD) scheme. In this...
Qiu, Cheng-Wei, Hu, Li, Zhang, Baile, Wu, Bae-Ian, Johnson, Steven G., Joannopoulos, John D.
Two novel classes of spherical invisibility cloaks based on nonlinear transformation have been studied. The cloaking characteristics are presented by segmenting the nonlinear transformation based...
Casimir forces in the time domain: I. Theory (2009)
Rodriguez, Alejandro W., McCauley, Alexander P., Joannopoulos, John D., Johnson, Steven G.
We introduce a method to compute Casimir forces in arbitrary geometries and for arbitrary materials based on the finite-difference time-domain (FDTD) scheme. The method involves the time-evolution of...
Ingredients of a Casimir analog computer (2009)
Rodriguez, Alejandro W., McCauley, Alexander P., Joannopoulos, John D., Johnson, Steven G.
We present the basic ingredients of a technique to compute quantum Casimir forces at micrometer scales using antenna measurements at tabletop, e.g. centimeter, scales, forming a type of analog...
Invited Paper Broadband optical studies of 1-D and 3-D photonic crystals (2009)
Peter T. Rakich, Hideyuki Sotobayashi, Juliet T. Gopinath, Jason W. Sickler, Chee Wei, Steven G. Johnson, ...
Supercontinuum based sources and measurement techniques are developed, enabling optical ultra-broadband studies of nano-scale photonic crystal devices and integrated photonic circuits over 1.2 –...
Mehmet Bayindir, Ayman F. Abouraddy, John D. Joannopoulos, Yoel Fink, Ofer Shapira, Dursen Saygin-hinczewski, ...
DARPA, the ARO, the ONR, the US DOE, and the ISN. The ability to integrate a multiplicity of distinct functional elements into a single device structure enables the realization of systems with...
Modeling Nonlinear Optical Phenomena in Nanophotonics (2008)
Jorge Bravo-abad, Shanhui Fan, Steven G. Johnson, John D. Joannopoulos, Marin Soljačić
Abstract—In this paper, we review various numerical methods currently used to model nonlinear optical processes in nanophotonics. Among the different theoretical frameworks that have been used to...
Ayman F. Abouraddy, Ofer Shapira, Mehmet Bayindir, Jerimy Arnold, Fabien Sorin, Dursen S, ...
While textile fabric has provided essential protection from the environment for millennia, it has not been the realm of optical functionality. In a recent paper [1] we demonstrated that light-weight,...
Nonlinear photonic crystals near the supercollimation point (2008)
Xu, Zhiyong, Maes, Bjorn, Jiang, Xunya, Joannopoulos, John D., Torner, Lluis, Soljacic, Marin
We uncover a strong coupling between nonlinearity and diffraction in a photonic crystal at the supercollimation point. We show this is modeled by a nonlinear diffraction term in a nonlinear...
MOLDING THE FLOW OF LIGHT (2008)
Steven G. Johnson, Attila Mekis, Shanhui Fan, John D. Joannopoulos
A new class of materials, called photonic crystals, affects a photon’s properties in much the same way that a semiconductor affects an electron’s properties. The ability to mold and guide light...
Repulsive, nonmonotonic Casimir forces in a glide-symmetric geometry (2008)
Rodriguez, Alejandro W., Joannopoulos, John D., Johnson, Steven G.
We describe a three-dimensional geometry that exhibits a repulsive Casimir force using ordinary metallic materials, as computed via an exact numerical method (no uncontrolled approximations). The...
Nonlinear photonic crystals near the supercollimation point (2008)
Xu, Zhiyong, Maes, Björn, Jiang, Xunya, Joannopoulos, John D, Torner, Lluis, Soljacic, Marin
Reflection-Free One-Way Edge Modes in a Gyromagnetic Photonic Crystal (2007)
Wang, Zheng, Chong, Y. D., Joannopoulos, John D., Soljacic, Marin
We point out that electromagnetic one-way edge modes analogous to quantum Hall edge states, originally predicted by Raghu and Haldane in 2D gyroelectric photonic crystals possessing Dirac...
Rodriguez, Alejandro, Soljacic, Marin, Joannopoulos, John D., Johnson, Steven G.
We derive general conditions for 100 percent frequency conversion in any doubly resonant nonlinear cavity, for both second- and third-harmonic generation via chi2 and chi3 nonlinearities. We find...
Tailoring optical nonlinearities via the Purcell effect (2007)
Bermel, Peter, Rodriguez, Alejandro, Joannopoulos, John D., Soljacic, Marin
We predict that the effective nonlinear optical susceptibility can be tailored using the Purcell effect. While this is a general physical principle that applies to a wide variety of nonlinearities,...
Rodriguez, Alejandro, Ibanescu, Mihai, Iannuzzi, Davide, Capasso, Federico, Joannopoulos, John D., Johnson, Steven G.
We present a method of computing Casimir forces for arbitrary geometries, with any desired accuracy, that can directly exploit the efficiency of standard numerical-electromagnetism techniques. Using...
Electronic Structure and Mechanical Properties of Grain Boundaries (2006)
Our ab-initio quantum mechanical calculations on grain boundaries have progressed beautifully. We have succeeded in obtaining some interesting and new results for both clean and doped gain boundary...
Evanescent-wave bonding between optical waveguides,” Opt (2005)
Michelle L. Povinelli, Mihai Ibanescu, Elizabeth J. Smythe, Steven G. Johnson, Federico Capasso, John D. Joannopoulos
Forces arising from overlap between the guided waves of parallel, microphotonic waveguides are calculated. Both attractive and repulsive forces, determined by the choice of relative input phase, are...
Polaritonics in complex structures: Confinement, bandgap materials, and coherent control (2004)
Ward, David W., Statz, Eric, Beers, Jaime D., Feurer, T., Joannopoulos, John D., Nelson, Keith A., ...
We report on the design, fabrication, and testing of ferroelectric patterned materials in the guided-wave and polaritonic regime. We demonstrate their functionality and exploit polariton confinement...
Peter Bienstman, Solomon Assefa, Steven G. Johnson, John D. Joannopoulos, Gale S. Petrich, Leslie A. Kolodziejski
structures for coupling into photonic crystal
Surface and Defect Excitations in Covalently Bonded Solids. (1998)
Table of Contents: Direct Current Conductivity and the Meyer-Neldel Rule in Amorphous Silicon; Ab-initio pseudopotentials for highly electronegative first row elements; Monte Carlo Study of the...
Interface Formation and Percusory Dynamics. (1998)
A completely ab-initio investigation of grain boundaries in solids has been performed for the first time. The electronic and structural properties of two short-period twist boundaries in Ge have been...