Electric and Magnetic Dipole Coupling in Near-Infrared Split-Ring Metamaterial Arrays
Ivana Sersic, Martin Frimmer, Ewold Verhagen, and A. Femius Koenderink
We present experimental observations of strong electric and magnetic interactions between split ring resonators (SRRs) in metamaterials. We fabricated near-infrared planar metamaterials with different inter-SRR spacings along different directions. Our transmission measurements show blueshifts and re ... [Phys. Rev. Lett. 103, 213902 (2009)] published Fri Nov 20, 2009.
High-speed measurement of foot shape based on multiple-laser-plane triangulation
Matija Jezersek and Janez Mozina
Optical three-dimensional shape measurement of live objects is becoming an important developing and research tool because of its nonintrusive nature and high measuring speed. The current methods are reaching truly high speed in one view configuration, but in the case of the entire object shape measu ... [Opt. Eng. 48, 113604 (2009)] published Fri Nov 20, 2009.
A compact interferometric sensor design using three waveguide coupling
K. C. Vernon, D. E. Gomez, and T. J. Davis
The use of metal stripes for the guiding of plasmons is a well established technique for the infrared regime and has resulted in the development of a myriad of passive optical components and sensing devices. However, the plasmons suffer from large losses around sharp bends, making the compact design ... [J. Appl. Phys. 106, 104306 (2009)] published Thu Nov 19, 2009.
Relaxation oscillations in long-pulsed random lasers
Karen L. van der Molen, Allard P. Mosk, and Ad Lagendijk
We have measured the evolution of the intensity emitted by a random laser during a pump pulse that is comparable in duration to the spontaneous emission decay time. The time traces of our random laser, consisting of titanium dioxide particles and sulforhodamine B dye, show clear relaxation oscillati ... [Phys. Rev. A 80, 055803 (2009)] published Thu Nov 19, 2009.
Exposure fusion based on steerable pyramid for displaying high dynamic range scenes
Jinhua Wang, De Xu, and Bing Li
Currently, most exposure fusion algorithms are put forward on the assumption that the source images are aligned prior to fusion. As a result, some artifacts, such as haloing, may be caused due to the slight misalignment in the source images. In order to reduce the influence induced by the misalignme ... [Opt. Eng. 48, 117003 (2009)] published Thu Nov 19, 2009.
Nonlinear optical effects during femtosecond photodisruption
Milan P. Poudel and Jinhai Chen
Several nonlinear effects (i.e., continuum generation, self-focusing, and material damage) were studied during femtosecond photodisruption. Numerical aperture dependence of white-light continuum generation and material damage were determined and a relation between the two effects was shown. We showe ... [Opt. Eng. 48, 114302 (2009)] published Thu Nov 19, 2009.
Terahertz lasing from silicon by infrared Raman scattering on bismuth centers
S. G. Pavlov, U. Bottger, R. Eichholz, N. V. Abrosimov, H. Riemann et al.
Stimulated emission at terahertz frequencies (4.55.8 THz) has been realized by electronic Raman scattering of infrared radiation on bismuth donor centers in silicon at low temperatures. The Stokes shift of the observed laser emission is 40.53 meV which corresponds to the bismuth intracenter transiti ... [Appl. Phys. Lett. 95, 201110 (2009)] published Wed Nov 18, 2009.
Influence of C morphology on high-order harmonic generation enhancement in fullerene-containing plasma
R. A. Ganeev, H. Singhal, P. A. Naik, J. A. Chakera, A. K. Srivastava et al.
The morphologies of the fullerene targets and the ablated fullerenes to determine the optimal conditions of excitation of the C-containing targets have been analyzed. The optimization of fullerene-containing plasma conditions allowed the enhanced harmonic generation in these plasmas using laser radi ... [J. Appl. Phys. 106, 103103 (2009)] published Wed Nov 18, 2009.
Electro-optic polymer prism beam deflector
Wei-Chih Wang, Jingdong Luo, and Alex K. Y. Jen
We report on an optical beam deflector capable of achieving a large beam deflection using a planar thermoplastic-based electro-optic (EO) polymer prism. By optimizing the prism's geometry, relative position, and incident angle of the input beam, the device shows that a large deflection angle can be ... [Opt. Eng. 48, 114601 (2009)] published Wed Nov 18, 2009.
Optical probes of orientation-patterned ZnSe quasi-phase-matched devices
Gary S. Kanner, Michael L. Marable, Narsingh B. Singh, Andre Berghmans, David Kahler et al.
Orientation-patterned zinc selenide (OPZnSe) is a unique quasi-phase-matched nonlinear optical material for enabling frequency conversion from visible to long-wave infrared wavelengths. We have fabricated and tested OPZnSe devices over a wide spectral range. Single-crystal OPZnSe films of greater th ... [Opt. Eng. 48, 114201 (2009)] published Wed Nov 18, 2009.
Polarization phase-shifting Fizeau interferometer with a cyclic path optical configuration
Sanjib Chatterjee and Y. Pavan Kumar
A new technique, using a cyclic path optical configuration, for generating two coherent, virtual point sources at the back focal plane of a corrected telescope objective, for producing a pair of mutually tilted collimated beams with linear orthogonal polarizations in a Fizeau interferometer cavity i ... [Opt. Eng. 48, 115601 (2009)] published Wed Nov 18, 2009.
Novel wide viewing liquid crystal display with improved off-axis image quality in a twisted nematic configuration
Seongmo Hwang, Jeehong Min, Moon-Gyu Lee, Kyumin Choe, Hwan-Young Choi et al.
We developed a novel twisted nematic (TN) liquid crystal display (LCD) having wide viewing angle characteristics through the reduction of the residual liquid crystal phase retardation at oblique angles using an embedded diffusing unit. Compared to a conventional TN panel, this embedded approach prov ... [Opt. Eng. 48, 114001 (2009)] published Wed Nov 18, 2009.
190 nm excimer laser drilling of glass slices: Dependence of drilling rate and via hole shape on the diameter of the via hole
K. H. Chen, Wenhsing Wu, Byung Hwan Chu, C. F. Lo, Jenshan Lin et al.
The authors have investigated the effect of the via hole diameter on the laser drilling rate of glass as well as the shape of the drilled via holes. An ArF based 193 nm UV excimer laser was used in this study. The via holes with a diameter of 120 [mu]m showed a 7.5 degrees 9 degrees angled, taper ... [J. Vac. Sci. Technol. B 27, L42 (2009)] published Wed Nov 18, 2009.
She et al. Reply:
Weilong She, Jianhui Yu, and Raohui Feng
A Reply to the Comment by Iver Brevik. ... [Phys. Rev. Lett. 103, 219302 (2009)] published Wed Nov 18, 2009.
Gently Modulating Optomechanical Systems
A. Mari and J. Eisert
We introduce a framework of optomechanical systems that are driven with a mildly amplitude-modulated light field, but that are not subject to classical feedback or squeezed input light. We find that in such a system one can achieve large degrees of squeezing of a mechanical micromirrorsignifying qua ... [Phys. Rev. Lett. 103, 213603 (2009)] published Wed Nov 18, 2009.
Comment on Observation of a Push Force on the End Face of a Nanometer Silica Filament Exerted by Outgoing Light
Iver Brevik
A Comment on the Letter by Weilong She, Jianhui Yu, and Raohui Feng, [Phys. Rev. Lett. 101, 243601 (2008)]. The authors of the Letter offer a Reply. ... [Phys. Rev. Lett. 103, 219301 (2009)] published Wed Nov 18, 2009.
Experimental demonstration of a nonmagnetic metamaterial cloak at microwave frequencies
Boubacar Kante, Dylan Germain, and Andre de Lustrac
Metamaterials have paved the way to unprecedented control of the electromagnetic field. The conjunction with space coordinate transformation has led to a relativity inspired approach for the control of light propagation. Invisibility cloak is the most fascinating proposed device. However, the realiz ... [Phys. Rev. B 80, 201104 (2009)] published Tue Nov 17, 2009.
Propagation of light pulses in a fast-light medium: Interplay between gain and dispersion
T. Crouzil and M. A. Bouchene
We consider here the situation of a Gaussian pulse that probes a medium exhibiting two close resonance lines. We study the spatial behavior of the light pulse and emphasize some overlooked features. Moreover, for long pulses and a fast-light medium, we show that the spatial distortion of the pulse d ... [Phys. Rev. A 80, 055802 (2009)] published Tue Nov 17, 2009.
Non-Markovian analysis of the phase-damped Jaynes-Cummings model in the presence of a classical homogeneous gravitational field
M. Mohammadi
In this paper, the non-Markovian dissipative dynamics of the phase-damped Jaynes-Cummings model in the presence of a classical homogeneous gravitational field will be analyzed. The model consists of a moving two-level atom simultaneously exposed to the gravitational field and a single-mode traveling ... [Phys. Rev. A 80, 053823 (2009)] published Tue Nov 17, 2009.
Spin Manipulation Using the Light-Shift Effect in Rubidium Atoms
T. Moriyasu, D. Nomoto, Y. Koyama, Y. Fukuda, and T. Kohmoto
Optical manipulation of spin coherence in rubidium atoms is studied. The effect of off-resonant and circularly polarized light on optically induced magnetization is investigated. The change in precession frequency caused by the light-shift effect is verified. Absorption-free phase control of spin pr ... [Phys. Rev. Lett. 103, 213602 (2009)] published Tue Nov 17, 2009.
Extended depth of focus in a particle field measurement using a single-shot digital hologram
Wen Chen, Chenggen Quan, and Cho Jui Tay
We propose a method to extend the depth of focus in a particle field measurement using a single-shot digital hologram. A focal plane is obtained for each pixel based on an entropy method, and a depth map is subsequently extracted. A synthesized extended focused image is determined correspondingly us ... [Appl. Phys. Lett. 95, 201103 (2009)] published Mon Nov 16, 2009.
Origins of performance in fiber-based organic photovoltaics
Yuan Li, Wei Zhou, Dan Xue, Jiwen Liu, Eric D. Peterson et al.
Using ray tracing and optical path iteration, we present a mathematical model for light transmission, absorption, and loss in fiber-based organic photovoltaics. Simulations based on this model give an optimum incident angle, position, and an optimum aspect ratio in terms of other parameters of the f ... [Appl. Phys. Lett. 95, 203503 (2009)] published Mon Nov 16, 2009.
Optical nanorod antennas as dispersive one-dimensional FabryPerot resonators for surface plasmons
Ertugrul Cubukcu and Federico Capasso
Resonant optical nanoantennas exhibit a different length scaling due to the surface plasmons compared to their radio frequency counterparts. In this letter, we address this difference by calculating the wavelength-dependent effective mode index n for a cylindrical one-dimensional gold nanowire waveg ... [Appl. Phys. Lett. 95, 201101 (2009)] published Mon Nov 16, 2009.
Exciton polaritons in two-dimensional photonic crystals
D. Bajoni, D. Gerace, M. Galli, J. Bloch, R. Braive et al.
Experimental evidence of strong coupling between excitons confined in a quantum well and the photonic modes of a two-dimensional dielectric lattice is reported. Both resonant scattering and photoluminescence spectra at low temperature show the anticrossing of the polariton branches, fingerprint of s ... [Phys. Rev. B 80, 201308 (2009)] published Mon Nov 16, 2009.
Demonstration of a highly coherent 13.9 nm x-ray laser from a silver tape target
Masaharu Nishikino, Yoshihiro Ochi, Noboru Hasegawa, Tetsuya Kawachi, Hiroshi Yamatani et al.
A highly coherent 13.9 nm x-ray laser (XRL) is generated under an oscillator-amplifier configuration using a new tape target system and a driver laser system with a 0.1 Hz repetition rate. The output energy is comparable to the XRL generated with a silver-deposited slab target, and the pointing stab ... [Rev. Sci. Instrum. 80, 116102 (2009)] published Mon Nov 16, 2009.
Measurement system of the refractive power of spherical and sphero-cylindrical lenses with the magnification ellipse fitting method
Wooseok Ko and Soohyun Kim
This paper proposes a new measurement system for measuring the refractive power of spherical and sphero-cylindrical lenses with a six-point light source, which is composed of a light emitting diode and a six-hole pattern aperture, and magnification ellipse fitting method. The position of the six lig ... [Rev. Sci. Instrum. 80, 115109 (2009)] published Mon Nov 16, 2009.
Analytic approximations to the phase diagram of the Jaynes-Cummings-Hubbard model
Alexander Mering, Michael Fleischhauer, Peter A. Ivanov, and Kilian Singer
We discuss analytic approximations to the ground-state phase diagram of the homogeneous Jaynes-Cummings-Hubbard (JCH) Hamiltonian with general short-range hopping. The JCH model describes, e.g., radial phonon excitations of a linear chain of ions coupled to an external laser field tuned to the red m ... [Phys. Rev. A 80, 053821 (2009)] published Mon Nov 16, 2009.
Engineering quantum operations on traveling light beams by multiple photon addition and subtraction
Jaromir Fiurasek
We propose and investigate an optical scheme for probabilistic implementation of an arbitrary single-mode quantum operation that can be expressed as a function of photon number operator. The scheme coherently combines multiple photon addition and subtraction and is feasible with current technology. ... [Phys. Rev. A 80, 053822 (2009)] published Mon Nov 16, 2009.
Attraction and repulsion of parallel femtosecond filaments in air
Hua Cai, Jian Wu, Peifen Lu, Xueshi Bai, Liang'en Ding et al.
We present an approach to explore and control nonlinear interactions between two orthogonally polarized femtosecond filaments launched parallel in air. The self-phase and cross-phase modulations due to the Kerr effect and cross-(de)focusing induced by the plasma and molecular alignment were distinct ... [Phys. Rev. A 80, 051802 (2009)] published Mon Nov 16, 2009.
Jaynes-Cummings models with trapped electrons on liquid helium
Miao Zhang, H. Y. Jia, and L. F. Wei
Jaynes-Cummings model is a typical model in quantum optics and has been realized with various physical systems [e.g, cavity quantum electrodynamics (QED), trapped ions, circuit QED, etc.] of two-level atoms interacting with quantized bosonic fields. Here, we propose an implementation of this model b ... [Phys. Rev. A 80, 055801 (2009)] published Mon Nov 16, 2009.
Tunable propagation of light through a coupled-bent dielectric-loaded plasmonic waveguides
Hong-Son Chu, Wei-Bin Ewe, and Er-Ping Li
We numerically show that it is easy to tune, both passively and actively, the transmission power delivered at different output ports of two coupled-bent dielectric-loaded plasmonic waveguides by varying the gap distance and refractive index of driven material between two dielectric stripes. We also ... [J. Appl. Phys. 106, 106101 (2009)] published Mon Nov 16, 2009.
Phaseless Three-Dimensional Optical Nanoimaging
Alexander A. Govyadinov, George Y. Panasyuk, and John C. Schotland
We propose a method for optical nanoimaging in which the structure of a three-dimensional inhomogeneous medium may be recovered from far-field power measurements. Neither phase control of the illuminating field nor phase measurements of the scattered field are necessary. The method is based on the s ... [Phys. Rev. Lett. 103, 213901 (2009)] published Mon Nov 16, 2009.
Bandwidth-Tunable Single-Photon Source in an Ion-Trap Quantum Network
M. Almendros, J. Huwer, N. Piro, F. Rohde, C. Schuck et al.
We report a tunable single-photon source based on a single trapped ion. Employing spontaneous Raman scattering and in-vacuum optics with large numerical aperture, single photons are efficiently created with controlled temporal shape and coherence time. These can be varied between 70 ns and 1.6 [mu] ... [Phys. Rev. Lett. 103, 213601 (2009)] published Mon Nov 16, 2009.
Calculation of the static electronic second hyperpolarizability or chi tensor of three-dimensional periodic compounds with a local basis set
Roberto Orlando, Mauro Ferrero, Michel Rerat, Bernard Kirtman, and Roberto Dovesi
The coupled perturbed HartreeFock (CPHF) method for evaluating static first (beta) and second (gamma) hyperpolarizability tensors of periodic systems has recently been implemented in the CRYSTAL code [Bishop et al., J. Chem. Phys. 114, 7633 (2001)]. We develop here an efficient and accurate computat ... [J. Chem. Phys. 131, 184105 (2009)] published Fri Nov 13, 2009.
Nanofabrication of diffractive elements for soft x-ray and extreme ultraviolet applications using ion beam lithography
Johannes Lenz, Thomas Wilhein, and Stephan Irsen
In the soft x-ray (SXR) and extreme ultraviolet (EUV) spectral region, optical elements are mainly based on diffractive structures. We report on experiments showing the fabrication of such elements using ion beam lithography. This allows single-step milling of freestanding transmission as well as re ... [Appl. Phys. Lett. 95, 191118 (2009)] published Fri Nov 13, 2009.
Practical approach for a rod-connected diamond photonic crystal operating at optical wavelengths
Kanna Aoki
Production of a rod-connected diamond (RCD) photonic crystal structure in a semiconductor material is proposed. Periodic shifting of only one building block can create a complicated three-dimensional network, with a RCD structure exhibiting a full bandgap as wide as 0.20 on a gap/midgap (Deltaomega/ ... [Appl. Phys. Lett. 95, 191910 (2009)] published Fri Nov 13, 2009.
Combined whispering gallery mode laser from hexagonal ZnO microcavities
J. Dai, C. X. Xu, R. Ding, K. Zheng, Z. L. Shi et al.
The hexagonal ZnO microrods were employed as whispering gallery mode (WGM) microcavities to obtain ultraviolet laser at room temperature. For each individual ZnO microrod, the laser presented low threshold and high quality Q factor and clear WGM spectral structure. The lasing spectra from different ... [Appl. Phys. Lett. 95, 191117 (2009)] published Fri Nov 13, 2009.
Near-field correlations in the two-photon field
H. Di Lorenzo Pires and M. P. van Exter
In experiments with spontaneous parametric down conversion the near-field plane is usually defined as the output facet of the generating crystal. Experimentally, however, the spatial correlations are accessed via an imaging system and observed in a region around the image of the output facet. We sho ... [Phys. Rev. A 80, 053820 (2009)] published Fri Nov 13, 2009.