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Rothau Sergej - - 2014
Optical components manipulating both polarization and phase of wave fields find many applications in today's optical systems. With modern lithography methods it is possible to fabricate optical elements with nanostructured surfaces from different materials capable of generating spatially varying, locally linearly polarized-light distributions, tailored to the application in question. Since ...
Zhang W - - 2014
New demonstrations of effective interaction between light and artificially electromagnetic interface, or the metasurface, have stimulated intensive research interests on control of light to realize applications in beam steering, optical imaging and light focusing, etc. Here we reported a new type of planar metasurface of which every individual metamolecule is ...
Zdoryk Oleksandr A - - 2014
The physical and chemical stability of a stock preparation ointment with active ingredients-herbal tinctures of calendula and arnica-for the treatment of hemorrhoids was studied. Evaluations for physical and chemical stability were performed initially and throughout the storage period. Physical stability of the ointment was assessed by means of visual observation ...
Wang Hongyi - - 2014
We present a novel self-powered chip to detect the direction of incident light. This chip directly provides digitized output without the need of any off-chip power supply or optical or mechanical components. The chip was implemented in a standard 0.5 μm CMOS process. A microscale metal baffle was created by stacking ...
Zhang Min - - 2014
In this letter, metal-semiconductor-metal (MSM) solar-blind photodetector was fabricated on LaAlO3 (110) substrates with Pt and Au electrodes. The substrate material was characterized by XRD and UV-visible absorption spectrum. At 10 V bias, the photodetector with Pt electrodes shows a very low dark current of 4.1 pA, which is much ...
Babazadeh Amin - - 2014
In this paper we present a novel method to reliably strip the unwanted cladding light in high-power fiber lasers. Soft metals are utilized to fabricate a high-power cladding light stripper (CLS). The capability of indium (In), aluminum (Al), tin (Sn), and gold (Au) in extracting unwanted cladding light is examined. ...
Kohl Jesse - - 2014
The light outcoupling efficiency of organic light-emitting optoelectronic devices is severely limited by excitation of tightly bound surface plasmon polaritons at the metal electrodes. We present a theoretical study of an organic semiconductor-silver-SiO<sub>2</sub> waveguide and demonstrate that by simple tuning of metal film thickness and the emission regime of the ...
Kochuveedu Saji Thomas ST Department of Chemistry and Nano Science, Global Top 5 Research Program, Division of Molecular and Life Sciences, College of Natural Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea. - - 2014
The interaction between light and matter is the fundamental aspect of many optoelectronic applications. The efficiency of such devices is mainly dictated by the light emitting properties of fluorophores. Unfortunately, the intensity of emission is adversely affected by surface defects, scattering and chemical instability. Therefore, enhancing the luminescence of fluorophores ...
Nachtigall Paul E PE Hawaii Inst. of Marine Biology, Univ. of Hawaii, P.O. Box 1106, Kailua, HI 96734, - - 2014
Work on hearing during echolocation has demonstrated that a whale was capable of changing its hearing sensitivity while it echolocated, perhaps to protect its hearing from its own intense emitted pulses. Would a whale similarly change hearing sensitivity when warned prior to receiving a loud sound? Hearing was measured using ...
Mooney T Aran TA Biology Dept., Woods Hole Oceanogr. Inst., 266 Woods Hole Rd., Woods Hole, MA 02543, - - 2014
Odontocetes use sound for vital biological functions such as foraging, navigation, and communication, and hearing is considered their primary sensory modality. Yet, hearing abilities within wild species or populations are essentially unknown. Hearing sensitivities and variations can greatly influence biosonar signals and performance. Here we present the hearing abilities of ...
Grant Stephen D - - 2014
Azimuthal and radial polarization states of light are used to produce conical diffraction (CD) from a KGd(WO<sub>4</sub>)<sub>2</sub> crystal. The patterns produced in the ring plane in each case display marked differences than those seen when linearly polarized incident light is used, with the production of a splitting of the CD ...
Gu Lijun L Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education, Yunnan University of Nationalities, Kunming, Yunnan 650500, China. - - 2014
6-Aryl substituted phenanthridines were synthesized via a visible-light-catalyzed cyclization of 2-isocyanobiphenyls with arylsulfonyl chlorides under oxidant-free and transition-metal-free conditions. This transformation represents an efficient and attractive synthetic utilization of arylsulfonyl chlorides.
Lee Minah M Department of Materials Science and Engineering, KAIST Institute for NanoCentury, KAIST, Daejeon, 305-701, Republic of - - 2014
Core-shell plasmonic nanohybrids are synthesized through a simple, solution-based process utilizing mussel-inspired polydopamine (PDA). The multi-purpose PDA not only facilitates plasmonic metal formation, but also serves as a scaffold to incorporate photosensitizers around metal cores as well as an adhesive between nanohybrids and substrates. The resulting plasmonic assembly exhibits highly ...
Amaral Joice A T JA Department of Physiotherapy and Occupational Therapy, Faculty of Philosophy and Sciences, UNESP (Marília), SP, Brazil. - - 2014
Objectives: The effects of chronic music auditory stimulation on the cardiovascular system have been investigated in the literature. However, data regarding the acute effects of different styles of music on cardiac autonomic regulation are lacking. The literature has indicated that auditory stimulation with white noise above 50 dB induces cardiac ...
Wong Jen It - - 2014
We fabricated a single active layer quantum dots light emitting diode(QD-LED) device based on colloidal CdSe (core)/CdS (arm) tetrapods nanostructures capable of simultaneously producing room temperature electroluminesence (EL) peaks at two spectrally distinct wavelengths, namely at ~500 nm and at ~660 nm. This remarkable dual EL was found to originate ...
Pham Minh-Hao MH Department of Chemical Engineering, Centre en catalyse et chimie verte (C3V), Laval University, Quebec, G1V 0A6, Canada. - - 2014
A hollow Fe2O3-TiO2-PtOx photocatalyst for visible light H2 generation was prepared from nanosized MIL-88B consisting of coordinatively unsaturated metal centers as a hard template. This photocatalyst is composed of hybrid metal oxide-TiO2 with controllable wall thickness and two different cocatalysts that are separately located on two surface sides.
Gao Junkuo J School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore. - - 2014
Here, we report a new Ti(iv)-based porous metal-organic framework (MOF) (), which displayed strong absorption in the visible region with a bandgap of 1.72 eV. The electronic structure and bandgap were further investigated by DFT calculations. Photoelectrochemical studies indicated that is photoactive under visible light illumination (λ > 400 nm) ...
Sundaram Vijay M - - 2014
Light scattering from nonspherically symmetric pure dielectric structures is examined. From the finite element full-wave analysis, it is found that teardrop-shaped scatterers can focus visible light to a ∼10  nm spot with an intensity enhancement ∼10<sup>5</sup> when the incident light is radially polarized.
Turzhitsky Vladimir V Center for Advanced Biomedical Imaging fnd Photonics, Beth Israel Deaconess Medical Center, Harvard University, Boston, Massachusetts 02215 - - 2014
The biomedical uses for the spectroscopy of scattered light by micro and nanoscale objects can broadly be classified into two areas. The first, often called light scattering spectroscopy (LSS), deals with light scattered by dielectric particles, such as cellular and sub-cellular organelles, and is employed to measure their size or ...
Zhao Zhao Z State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences (CAS), Changchun, Jilin 130033, China. tanhq870@126.com - - 2014
Stable reduced TiO2 rutile nanorods with well-defined facets were prepared by a solvothermal route in the presence of Zn powder. The oxygen vacancy in the TiO2 nanorods, which can be tuned by the amount of Zn, results in a narrow band gap and visible-light photocatalytic activity.
Yu Lijuan L College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, P. R. China. typeng@whu.edu.cn - - 2014
Zinc phthalocyanine (ZnPc) derivatives with asymmetric (Zn-tri-PcNc-2) or symmetric (Zn-tetrad-Nc) structure, which possess wide spectral response in the visible/near-IR light region, are synthesized and utilized as a sensitizer of graphitic carbon nitride (g-C3N4) with 0.5 wt% Pt-loading for photocatalytic H2 production. The experimental results indicate that Zn-tri-PcNc-2 exhibits much better ...
Mahajan Namit N Theoretical Physics Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, - - 2014
We consider one-loop QCD corrections and renormalization group running of the neutrinoless double-βdecay amplitude focusing on the short-range part of the amplitude (without the light neutrino exchange) and find that these corrections can be sizeable. Depending on the operator under consideration, there can be moderate to large cancellations or significant ...
Gu Yinghong Y Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore. - - 2014
Dark plasmon resonance modes are optical modes that have small scattering cross-sections and are thus difficult to excite directly by light at normal incidence. In this paper, we propose to excite quadrupolar and higher-order modes with normal incident light (in the visible regime) on a continuous plasmonic metallic surface covering ...
Kopper Bence B Department of Biomechanics, Kinesiology and Informatics, Faculty of PE and Sport Science, Semmelweis University, Budapest, Hungary. Electronic address: - - 2014
In the present study we investigated kinematical characteristics of the knee and ankle extensors to estimate the length change properties of the contractile and the passive elements in countermovement jumps (CMJ) and drop jumps (DJ) performed with small (40°) and large (80°) range of joint motion (SRM and LRM). At ...
Dhakal Rabin - - 2014
We present a novel thin and flat solar concentrator design, inspired by the structure and optical functionality of the ommatidium in the compound eye of insects. By combining a microlens with a curved light guide, rather than the conventionally employed dielectric or metallic reflectors, we could simultaneously achieve low-loss light ...
- - 2014
[This corrects the article DOI: 10.1371/journal.pone.0098163.].
Baldwin Alex S AS School of Life and Health Sciences, Aston University, Birmingham, - - 2014
The visual system pools information from local samples to calculate textural properties. We used a novel stimulus to investigate how signals are combined to improve estimates of global orientation. Stimuli were 29 × 29 element arrays of 4 c/deg log Gabors, spaced 1° apart. A proportion of these elements had ...
Yoon Jae Woong JW Dept. of Electrical Engineering, University of Texas at Arlington, Box 19016, Arlington, TX 76019, - - 2014
Metallic nanostructures are of immense scientific interest owing to unexpectedly strong interaction with light in deep subwavelength scales. Resonant excitations of surface and cavity plasmonic modes mediate strong light localization in nanoscale objects. Nevertheless, the role of surface plasmon-polaritons (SPP) in light transmission through a simple one-dimensional system with metallic ...
Wang Yuxi Y Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of - - 2014
A facile synthesis route of cuprous oxide (Cu2O) hollow spheres under different temperatures without the aid of a surfactant was introduced. Morphology and structure varied as functions of reaction temperature and duration. A bubble template-mediated formation mechanism was proposed, which explained the reason of morphology changing with reaction temperature. The ...
Chou Wei-Lun WL Department of Psychology, National Taiwan University Taipei, Taiwan ; Department of Psychology, Fo Guang University Yilan, - - 2014
Visual attention can be allocated to either a location or an object, named location- or object-based attention, respectively. Despite the burgeoning evidence in support of the existence of two kinds of attention, little is known about their underlying mechanisms in terms of whether they are achieved by enhancing signal strength ...
Zaman M R MR 0000-0001-9715-4652 Centre for Space Science (ANGKASA), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, - - 2014
Analysis of the resonance response improvement of a planar C-band (4-8 GHz) antenna is proposed using parasitic element method. This parasitic element based method is validated for change in the active and parasitic antenna elements. A novel dual-band antenna for C-band application covering 5.7 GHz and 7.6 GHz is designed and fabricated. The ...
Manjavacas A A 1] IQFR-CSIC, Serrano 119, 28006 Madrid, Spain - - 2014
The ability to modulate light at high speeds is of paramount importance for telecommunications, information processing and medical imaging technologies. This has stimulated intense efforts to master optoelectronic switching at visible and near-infrared frequencies, although coping with current computer speeds in integrated architectures still remains a major challenge. As a ...
OdstrĨil M M Optical Research Center, University Southampton, Southampton, United - - 2014
Light reflections are one of the main and often underestimated issues of plasma emissivity reconstruction in visible light spectral range. Metallic and other specular components of tokamak generate systematic errors in the optical measurements that could lead to wrong interpretation of data. Our analysis is performed at data from the ...
- - 2014
[This corrects the article DOI: 10.1371/journal.pone.0099032.].
Boehm A E AE Department of Psychology, University of California, San Diego, CA, USA Vision Science Graduate Group, University of California, Berkeley, CA, USA School of Optometry, University of California, Berkeley, CA, - - 2014
For anomalous trichromats, threshold contrasts for color differences captured by the L and M cones and their anomalous analogs are much higher than for normal trichromats. The greater spectral overlap of the cone sensitivities reduces chromatic contrast both at and above threshold. But above threshold, adaptively nonlinear processing might compensate ...
Chen Hongjun H Nanomaterials Centre, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, - - 2014
To better utilize the sunlight for efficient solar energy conversion, the research on visible-light active photocatalysts has recently attracted a lot of interest. The photosensitization of transition metal oxides is a promising approach for achieving effective visible-light photocatalysis. This review article primarily discusses the recent progress in the realm of ...
Tang Yong Y CAS Key Laboratory of Brain Function and Diseases, and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, People's Republic of China; Research and Treatment Center of Amblyopia and Strabismus, University of Science and Technology of China, Hefei, Anhui, People's Republic of - - 2014
Several studies have indicated substantial processing deficits for static second-order stimuli in amblyopia. However, less is known about the perception of second-order moving gratings. To investigate this issue, we measured the contrast sensitivity for second-order (contrast-modulated) moving gratings in seven anisometropic amblyopes and ten normal controls. The measurements were performed ...
Finzi Alessandro A Department of Specialized, Diagnostic and Experimental Medicine, Ophthalmology Service, University of Bologna, Bologna, - - 2014
To assess the sensitivity and specificity of hemifield pattern electroretinogram (HF-PERG) for detecting early retinal ganglion cell (RGC) damage in ocular hypertensive (OH) patients. Fifty-two OH patients (mean age 56±9.6 years) with an intraocular pressure (IOP) .21 mmHg were assessed. All subjects underwent HF-PERG, optical coherence tomography (OCT), and frequency ...
Johansson Henrik H Synthetic and Systems Biology (SynthSys), University of Edinburgh, CH Waddington Building, Mayfield Road, Edinburgh EH9 3JD, - - 2014
In Arabidopsis, the seedling hypocotyl has emerged as an exemplar model system to study light and temperature control of cell expansion. Light sensitivity of this organ is epitomized in the fluence rate response where suppression of hypocotyl elongation increases incrementally with light intensity. This finely calibrated response is controlled by ...
Chen Yigen Y Department of Entomology and Nematology, University of California Davis, Davis, California, United States of - - 2014
Seasonal and diurnal flight patterns of the invasive walnut twig beetle, Pityophthorus juglandis, were assessed between 2011 and 2014 in northern California, USA in the context of the effects of ambient temperature, light intensity, wind speed, and barometric pressure. Pityophthorus juglandis generally initiated flight in late January and continued until ...
Anstis Stuart S Department of Psychology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0109, USA; e-mail: - - 2014
Contrast adaptation is specific to precisely localised edges, so that adapting to a flickering photograph makes one less sensitive to that same photograph, but not to similar photographs. When two low-contrast photos, A and B, are transparently superimposed, then adapting to a flickering high-contrast B leaves no net afterimage, but ...
Peng Lin L Department of Materials Science, Fudan University, Shanghai 200433, People's Republic of China ; Department of Physics, Shanghai University of Electric Power, Shanghai 200090, People's Republic of - - 2014
Hollow-sphere bilayer nanofilm-based ultraviolet light photodetectors made from ZnO and ZnS spherical nanoshells show enhanced photocurrent, which are comparable to or even better than those of other semiconductor nanostructures with different shapes. In this work, the photocurrent enhancement mechanisms of these bilayer nanofilm-based ultraviolet light photodetectors are explained, which could ...
Sebastian Abin A Department of Plant Sciences, University of Hyderabad, Hyderabad 500046, - - 2013
Cadmium (Cd) accumulation and related stress responses have been investigated in red, blue and white lights exposed Oryza sativa L. cv MTU 7029. Cd translocation was reduced significantly by red and blue lights. Increase in amount of organic acids, thiols, and nutrients in the roots that cause Cd rhizocomplexation was ...
Kim Heejin - - 2013
A highly efficient photoelectrochemical cell was developed using quantum dot semiconductor coupled hierarchical ZnO nanostructure for hydrogen generation. The hierarchical ZnO nanostructure consists of ZnO nanowire as a core and 2-dimensional ZnO nanosheets shelled on the ZnO nanowire surface. This multi-dimensional nanostructured photoanode was optimized with solution process conditions for ...
Wang Hongyi - - 2013
We present an on-chip optical sensor capable of detecting the direction of incident light. No off-chip optical or mechanical components or modifications-for example, baffles, slit structures, mirrors, etc.-are needed. The sensor was implemented in a standard 0.5 μm complementary metal-oxide semiconductor process. A pair of on-chip photodiodes separated by a metal ...
Game Onkar - - 2013
Organic-inorganic hybrid photo-detectors with a self-sufficient mode of operation represent a research area of great current interest. In most efficient photodetectors and optoelectronic devices compound semiconductors containing toxic elements such as Cd, As, Te, S, Se etc. are used and these are also expensive. Hence there is also a rapidly ...
Choi Chang-Hoon - - 2013
The enhanced light output power of a InGaN/AlGaN-based light-emitting diodes (LEDs) using three different types of highly reflective Sn-doped indium oxide (ITO)/Al-based p-type reflectors, namely, ITO/Al, Cu-doped indium oxide (CIO)/s-ITO(sputtered)/Al, and Ag nano-dots(n-Ag)/CIO/s-ITO/Al, is presented. The ITO/Al-based reflectors exhibit lower reflectance (76 - 84% at 365 nm) than Al only ...
- - 2013
Time lapse of PS probe (mcherry-lactC2) accumulation at the phagosome during phagocytosis of opsonised zymosan.
Case Alex - - 2013
So many soundscapes-found, archived, preserved, or composed-consist of multiple sound elements. The interaction among these individual sounds can conflict and obscure, or complement and harmonize. The creation of sound recordings through the multitrack production process offers a point of view into how an overall soundscape can be successfully created, and ...
Kawawaki Tokuhisa - - 2013
For improvement of the conversion efficiency of solar cells, it is important to make effective use of near-infrared light, which accounts for about 40% of sunlight energy. Although solar cells based on quantum dots (QDs) such as PbS have been studied for the use of near-infrared light, their photoabsorption is ...
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