Nanoscale shift of the intensity distribution of dipole radiation.

Effect of the Interparticle Interactions on Adsorption-Induced Frequency Shift of Nano-beam-Based Nanoscale Mass-Sensors: A Theoretical Study

It is well-known that the Interparticle interactions between adsorbates and surface of an adsorbent can affect the surface morphology. One of the consequences of this issue is that the resonant frequency of a nanoscale resonator can be changed due to adsorption. In this study we have chosen a cantilever-based nanoscale mass-sensor with a single nanoparticle at its tip. Using the classical...

Calculation of the Induced Charge Distribution on the Surface of a Metallic Nanoparticle Due to an Oscillating Dipole Using Discrete Dipole Approximation method

In this paper, the interaction between an oscillating dipole moment and a Silver nanoparticle has been studied. Our calculations are based on Mie scattering theory and discrete dipole approximation(DDA) method.At first, the resonance frequency due to excitingthe localized surface plasmons has been obtained using Mie scattering theory and then by exciting a dipole moment in theclose proximity of...

Numerical method for analysis of radiation from thin wire dipole antenna

Detection of the velocity dipole in the radio galaxies of the NRAO VLA Sky Survey

We are in motion against the cosmic backdrop. This motion is evidenced by the systematic temperature shift – or dipole anisotropy – observed in the Cosmic Microwave Background radiation (CMB) [1]. Because of the Doppler effect, the temperature of the CMB is 0.1 per cent higher in our direction of motion through the Universe. If our standard cosmological understanding is correct, this dipole sho...

Grid: A location dependent intensity modulated radiotherapy for bulky tumors

Background: An effective method for management of large and bulky malignant tumors. This treatment modality is also known as Specially Fractionated Radiation Therapy (SFRT). In this treatment technique a grid block converted the open radiation field into a series of pencil beams. Dosimetric characteristics of an external beam grid radiation field have been investigated using experimental and Mo...