L. Bergamini , O. Muskens , N. Zabala , J. Aizpurua 
 UPV/EHU, Bilbao, Spain; Materials Physics Center and CSIC-UPV/EHU, Donostia-San Sebastian, Spain; Donostia International Physics Center, Donostia-San Sebastian, Spain
 University of Southampton, Southampton, UK
 Materials Physics Center and CSIC-UPV/EHU, Donostia-San Sebastian, Spain; Donostia International Physics Center, Donostia-San Sebastian, Spain
It is well-known that metal nanoparticles (NPs) excited at the plasmon frequency not only exhibit peculiar optical properties (e.g., a peak in the extinction spectrum, an enhanced electromagnetic near-filed) but also heat up . This phenomenon is highly investigated for medical applications, but it can be exploited also for the realization of optical devices. In our study we use COMSOL ...
Pryor Knowledge Systems Inc., Bloomfield Hills, MI, USA
This paper presents one approach to the modeling of an abrupt junction PIN photodiode light sensor using COMSOL Multiphysics software and the incorporated SPICE® capability. The current model is built using the capabilities of SPICE in COMSOL Multiphysics 4.0. This model demonstrates the use of SPICE and the AC/DC Module to build a conduction current, rather than an electrostatic, model. This ...
S. Kaim, B. Anderson, G. Venus, J. Lumeau, V. Smirnov, B. Zeldovich, L. Glebov
CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA
OptiGrate Corp, Oviedo, FL, USA
Forced airflow cooling of a Volume Bragg Grating heated by a laser beam was investigated by means of simulation with COMSOL Multiphysics®. In addition to air cooling of unrestricted airflow, a case of airflow directed by limiting glass plates was investigated. A number of temperature distributions and thermal deformations were obtained in simulations for different rates of airflows. Simulations ...
C. Rajni, and A. Marwaha
 Shaheed Bhagat Singh College of Engineering And Technology, Ferozepur, Punjab, India
 Sant Longowal Institute of Engineering And Technology, Sangrur, Punjab, India
‘Metamaterial’ is one of the most recent topic in several areas of science and technology due to its vast potential in various applications. These are artificially fabricated materials which exhibit negative permittivity and/or negative permeability. The unusual electromagnetic properties of metamaterial has opened more opportunities for better antenna design to surmount the limitations of ...
D. Grabovi?ki?, J.C. González, P. Benítez, J.C. Miñano
Cedint Universidad Politécnica de Madrid, Madrid, Spain
Negative Refractive Lens (NRL) has shown that an optical system can produce images with details below the classic Abbe diffraction limit. This optical system transmits the electromagnetic fields, emitted by an object plane, towards an image plane producing the same field distribution in both planes. Recently, two devices with positive refraction, the Maxwell Fish Eye lens (MFE) (Leonhardt et al. ...
N. K. Nishchal, A. Fatima, I. Mehra, D. Kumar
Indian Institute of Technology Patna, Patna, Bihar, India
Optical encryption has become a significant research field due to its remarkable advantages [1-5]. The unique features of plasmonics have drawn researchers’ attention towards the role which it can play in information security [3 & 4]. The electric field is greatly enhanced when a metallic nanoparticle is illuminated by an appropriate electromagnetic field. The distribution and enhancement of ...
R. Eisenschmid ,
 OPTIMA pharma GmbH, Schwäbisch Hall, Germany
Adaptive Optics is common sense, since many people use digital cameras with electromechanical iris actors on elastic autofocus lenses. This project tries to create a COMSOL Multiphysics based mathematical model of adaptive optics with electrostatically induced deformation of dielectric gels. Upper and lower sides of a lens (dielectric conductive gel) are coated by transparent conductive films, i ...
P. Cendula , J. O. Schumacher ,
 Institute of Computational Physics, Zurich University of Applied Sciences, Winterthur, Switzerland
A photoelectrochemical (PEC) cell uses solar energy to split water to hydrogen and oxygen in single integrated device. Electrochemical impedance spectroscopy is a suitable tool to characterize recombination and reaction mechanisms in PEC cell. Full numerical drift-diffusion calculations of the electrochemical impedance were conducted. The linear dependence of abscissa (real part) in Nyquist ...
En-Ming You , Jun Yi , Song-Yuan Ding [1,2],
 State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
 Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, China
Surface-enhanced Raman scattering (SERS) is a fingerprint spectroscopy whose sensitivity is down to single molecule level. The mechanism of SERS is mainly contributed to huge enhancement of local electric field, which originated from surface plasmon resonance of metal nanostructures. It is very important to exactly calculate the local enhancement in the electric field strength for right ...
P. Ding （丁佩） ,
 Department of Mathematics and Physics, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou, Henan, China
Plasmonic metallic nanostructures have been demonstrated an effective way to enhance the light emission efficiency in LEDs. Here, we propose a design of white LEDs that combining dielectric silicon nanopillar array in the color-converting layer. By investigating theoretically the guided mode caused by the nanopillar array-waveguide system, we demonstrate that the silicon nanopillar arrays enable ...