Results 41 to 50 of about 3,997,912 (199)

Room temperature continuous wave operation of single-mode, edge-emitting photonic crystal Bragg lasers [PDF]

open access: yes, 2008
We report the first room temperature CW operation of two dimensional single-mode edge-emitting photonic crystal Bragg lasers. Single-mode lasing with single-lobed, diffraction limited far-fields is obtained for 100μm wide and 550μm long on-chip devices ...
DeRose, Guy A.   +4 more
core   +2 more sources

Anti-Resonant Fiber with Large Mode Area and Ultra-High HOMER for Near-Infrared High-Power Laser

open access: yesPhotonics
A novel anti-resonant hollow-core fiber (AR-HCF) is proposed. The fiber uses cross-nested circular cladding tubes including single-nested and non-nested tubes in the near-infrared spectral region of 1.3–1.7 μm.
Shuyi Wang   +9 more
doaj   +1 more source

Single ion implantation for single donor devices using Geiger mode detectors

open access: yes, 2009
Electronic devices that are designed to use the properties of single atoms such as donors or defects have become a reality with recent demonstrations of donor spectroscopy, single photon emission sources, and magnetic imaging using defect centers in ...
E Bielejec   +7 more
core   +1 more source

A Single-Mode 852-nm Faraday Laser

open access: yesIEEE Photonics Journal
Realizing always atomic translation frequency output, single-mode, high frequency stability, narrow linewidth semiconductor lasers, is one of the ultimate visions of areas related to quantums, such as quantum precision measurement and atomic physics.
Zhiyang Wang   +9 more
doaj   +1 more source

Single-photon nonlinearities in two-mode optomechanics

open access: yes, 2012
We present a detailed theoretical analysis of a weakly driven multimode optomechanical system, in which two optical modes are strongly and near-resonantly coupled to a single mechanical mode via a three-wave mixing interaction.
Bennett, S. D.   +6 more
core   +1 more source

Entanglement induced by a single-mode heat environment [PDF]

open access: yes, 2001
A thermal field, which frequently appears in problems of decoherence, provides us with minimal information about the field. We study the interaction of the thermal field and a quantum system composed of two qubits and find that such a chaotic field with ...
A. Peres   +15 more
core   +2 more sources

Single-mode wave decay

open access: yesPhysics of Plasmas
The usual approach on electrostatic wave decay process for a weak beam-plasma system considers two different wave modes interplaying, the Langmuir and ion-sound mode. In the present paper, a single-mode approach is shown to be feasible for conditions where the respective dispersion relations undergo topological changes.
Guilherme T. Irumé   +2 more
openaire   +2 more sources

Single-Mode Fiber Microlens with Controllable Spot Size [PDF]

open access: yes, 1991
A novel method for fabricating microlenses on tapered single-mode fibers is shown to be able to control the lens spot size. The fiber cladding is first symmetrically tapered by etching it with an evaporating ammonium bifluoride solution.
Barnard, Chris W., Lit, John W.Y.
core   +2 more sources

FEM analysis of a highly birefringent modified slotted core circular PCF for endlessly single mode operation across E to L telecom bands

open access: yesJournal of the European Optical Society-Rapid Publications
This paper describes an exceptionally high birefringent modified slotted core circular photonic crystal fiber (MSCCPCF). At the 1.55 μm telecommunication wavelength, the proposed fiber structure aims to achieve exceptional birefringence performance ...
Halder Amit   +6 more
doaj   +1 more source

Single VDTA Based Dual Mode Single Input Multioutput Biquad Filter

open access: yesJournal of Engineering, 2016
This paper presents a dual mode, single input multioutput (SIMO) biquad filter configuration using single voltage differencing transconductance amplifier (VDTA), three capacitors, and a grounded resistor.
Rajeshwari Pandey   +2 more
doaj   +1 more source

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