Browsing by Keywords "Light polarization"
Now showing items 1-20 of 21
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Advances in femtosecond single-crystal sum-frequency generating optical parametric oscillators
(IEEE, 1998)The effect of compensating the group velocity mismatch between the orthogonal pump components on the conversion efficiency of the optical parametric oscillators (OPOs) was investigated. A femtosecond single-crystal ... -
Analysis of the 2D nonconcentric large reflector antenna-in-radome system: H-polarization case
(IEEE, 2004)2D nonconcentric reflector antenna-in-radome system is analyzed for H-polarization case. Rigorous formulation is performed depending on the MoR, Green's function and CSP methods. Larger geometries are solved in reasonable ... -
Broadband quarter-wave plates at near-infrared using high-contrast gratings
(2013)In this paper, we report the theoretical and experimental possibility of achieving a quarter-wave plate regime by using high-contrast gratings, which are binary, vertical, periodic, near-wavelength, and two-dimensional ... -
Downlink beamforming under individual SINR and per antenna power constraints
(IEEE, 2007-08)In this paper we consider the problem of finding the optimum beamforming vectors for the downlink of a multiuser system, where there are individual signal to interference plus noise ratio (SINR) targets for each user. ... -
Femtosecond self-doubling optical parametric oscillator based on KTiOAsO4
(IEEE, 2003)We report a femtosecond intracavity-frequency-doubled optical parametric oscillator that employs a single KTiOAsO4 crystal for both parametric generation and frequency doubling. This device generates a yellow output beam ... -
Generation of parabolic bound pulses from a Yb-fiber laser
(Optical Society of American (OSA), 2006)We report the observation of self-similar propagation of bound-state pulses in an ytterbium-doped double-clad fiber laser. A bound state of two positively chirped parabolic pulses with 5.4 ps duration separated by 14.9 ps ... -
High-Q silicon-on-insulator optical rib waveguide racetrack resonators
(Optical Society of American (OSA), 2005)In this work, detailed design and realization of high quality factor (Q) racetrack resonators based on silicon-on-insulator rib waveguides are presented. Aiming to achieve critical coupling, suitable waveguide geometry is ... -
Investigation of the inaccuracy of the MFIE discretized with the RWG basis functions
(IEEE, 2004-06)The inaccuracy of the magnetic-field integral equation (MFIE) discretized with the Rao-Wilton-Glisson (RWG) basis functions is discussed. The electric-field integral equation (EFIE) gives accurate results with the usage ... -
Negative refraction and subwavelength focusing using photonic crystals
(SPIE, 2005-01)We review certain novel optical properties of two-dimensional dielectric photonic crystals (PCs) which exhibit negative refraction behavior. We investigate two mechanisms which utilize the band structure of the PC and lead ... -
Phase-matched self-doubling optical parametric oscillator
(IEEE, 1996)A new self-doubling optical parametric oscillator (OPO) uses a single nonlinear crystal for both parametric generation and frequency doubling. It is based on a KTiOPO4 (KTP) crystal pumped by a Ti:Sapphire laser operating ... -
Plane-wave dynamics of optical parametric oscillation with simultaneous sum-frequency generation
(Institute of Electrical and Electronics Engineers, 1999-06)This paper presents a theoretical analysis of sum-frequency generating optical parametric oscillators where a single nonlinear crystal is used for both parametric generation and sum-frequency generation. In these devices, ... -
Plane-wave dynamics of optical parametric oscillation with simultaneous sum-frequency generation
(IEEE, 1998)The plane wave dynamics of a single-crystal upconversion optical parametric oscillators (OPO) with simultaneous sum-frequency generation (SFG) was studied. It was presumed that simultaneous phase-matching of the SFG and ... -
Plane-wave theory of self-doubling optical parametric oscillators
(Institute of Electrical and Electronics Engineers, 1998-03)This paper presents a theoretical analysis of self-doubling optical parametric oscillators (OPO's) where a single nonlinear crystal is used for both parametric generation and frequency doubling. In these devices, the ... -
Plasma enhanced chemical vapor deposition of low-loss as-grown germanosilicate layers for optical waveguides
(SPIE, 2004)We report on systematic growth and characterization of low-loss germanosilicate layers for use in optical waveguides. Plasma enhanced chemical vapor deposition (PECVD) technique was used to grow the films using silane, ... -
Polarization characteristics of compact SOI rib waveguide racetrack resonators
(IEEE, 2005)We report on the development of compact optical racetrack resonators on silicon-on-insulator (SOI) rib waveguides. We make use of large-cross-section waveguides instead of photonic wire waveguides. We fabricated resonators ... -
Polarization of radiation in multipole Jaynes-Cummings model
(Taylor & Francis Ltd, 2002)We discuss the spatial properties of quantum radiation emitted by a multipole transition in a single atom. It is shown that the polarization of multipole radiation and quantum fluctuations of polarization change with ... -
Quarter wave Fresnel rhomb with colinear output beam
(Optical Society of America Inc., Washington, DC, United States, 1999)A standard quarter wave (λ/4) Fresnel rhomb laterally displaces the output beam with respect to the input beam. This lateral displacement can cause problems when inserting the rhomb in an already aligned optical setup. ... -
Reflection properties and defect formation in metallic photonic crystals
(IEEE, 1998-05)The reflection properties of layer-by-layer metallic photonic crystals were investigated using metallic photonic crystals with simple-tetragonal (st) structure. The observed properties were used to predict defect formation ... -
Single-crystal sum-frequency-generating optical parametric oscillator
(Optical Society of America, 1999-09)We report a synchronously pumped optical parametric oscillator that generates the sum frequency of the pump and the signal wavelengths. A single KTiOPO4 (KTP) crystal is used for both parametric generation and sum-frequency ... -
Stress effects in prism coupling measurements of thin polymer films
(Springer, 2005)Due to the increasingly important role of some polymers in optical waveguide technologies, precise measurement of their optical properties has become important. Typically, prism coupling to slab waveguides made of materials ...
