Browsing by Keywords "Free space"
Now showing items 1-9 of 9
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Efficient computation of quadratic-phase integrals in optics
(Optical Society of America, 2006)Received June 29, 2005; revised manuscript received August 22, 2005; accepted September 12, 2005 We present a fast N log N time algorithm for computing quadratic-phase integrals. This three-parameter class of integrals ... -
Electromagnetically induced left-handedness in a dense gas of three-level atoms
(The American Physical Society, 2004)Ways in which a three-level system can be used to change the frequency-dependent magnetic permeability of an atomic gas were discussed. The resulting macroscopic electrodynamics was also discussed. The two levels were ... -
Fast and accurate algorithm for the computation of complex linear canonical transforms
(Optical Society of America, 2010-08-05)A fast and accurate algorithm is developed for the numerical computation of the family of complex linear canonical transforms (CLCTs), which represent the input-output relationship of complex quadratic-phase systems. ... -
Fast and accurate computation of two-dimensional non-separable quadratic-phase integrals
(Optical Society of America, 2010-05-12)We report a fast and accurate algorithm for numerical computation of two-dimensional non-separable linear canonical transforms (2D-NS-LCTs). Also known as quadratic-phase integrals, this class of integral transforms ... -
Lasing modes of infinite periodic chain of quantum wires
(IEEE, 2009-06-07)In this paper, we study the scattering and eigenvalue problems for a periodic open optical resonator that is an infinite chain of active circular cylindrical quantum wires standing in free space. The scattering problem is ... -
The method of analytical regularization in the electromagnetic wave scattering by thin disks
(Institution of Engineering and Technology, 2007)We consider the problem of diffraction of an arbitrary electromagnetic wave by a thin disk made from different materials and located in free space. Here we imply a zero- thickness perfectly electrically conducting (PEC) ... -
Microwave transmission through metamaterials in free space
(2002)To investigate properties of metamaterials, composite structures which consists of periodical arrangement of thin copper wires and SRRs on a circuit board was constructed. Through this, the transmission properties of ... -
Transmission properties of composite metamaterials in free space
(American Institute of Physics, 2002)We propose and demonstrate a type of composite metamaterial which is constructed by combining thin copper wires and split ring resonators (SRRs) on the same board. The transmission measurements performed in free space ... -
Ultralow threshold laser action from toroidal polymer microcavity
(American Institute of Phycsics, 2009)We report laser action from a toroidal microcavity coated with π-conjugated polymer. An ultralow threshold value of ∼200 pJ/pulse is achieved by free space excitation in ambient conditions. This is the lowest threshold ...
