Results 61 to 70 of about 3,997,912 (199)
SPIE Proceedings, 2002 We compare various approaches aiming at large-area high-power single-mode oxidized VCSELs. Stable and reproducible single-mode emission with SMSR (side-mode suppression ratio) greater than 30dB and output powers well above 5mW are reported for the long monolithic cavity and self-aligned shallow surface etching approaches, both of which are suitable for
Heiko J. Unold +10 more
openaire +2 more sources
Coexistence of single-mode and multi-longitudinal mode emission in the ring laser model
, 2005 A homogeneously broadened unidirectonal ring laser can emit in several longitudinal modes for large enough pump and cavity length because of Rabi splitting induced gain. This is the so called Risken-Nummedal-Graham-Haken (RNGH) instability.
Carr +25 more
core +1 more source
Numerical investigations of single mode gyrotron equation
Mathematical Modelling and Analysis, 2009 A stationary problem with the integral boundary condition arising in the mathematical modelling of a gyrotron is numerically investigated. The Chebyshev's polynomials of the second kind are used as the tool of calculations.
Janis Cepitis +2 more
doaj +1 more source
Cavity mode manipulated by single gold nanoparticles
APL Photonics, 2020 The ability to manipulate microlaser performance is highly desirable so as to promote on-chip classical and quantum information-processing technology. Here, we demonstrate that mode manipulation of bottle microresonators is enabled by precise deposition ...
Yipeng Lun +5 more
doaj +1 more source
A bright, pulsed two-mode squeezer
, 2010 We report the realization of a bright ultrafast two-mode squeezer based on type II parametric downconversion (PDC) in periodically poled $\mathrm{KTiOPO_4}$ (PP-KTP) waveguides.
A. B. U’Ren +5 more
core +1 more source
Improved large-mode area endlessly single-mode photonic crystal fibers [PDF]
, 2002 We numerically study the possibilities for improved large-mode area endlessly single mode photonic crystal fibers for use in high-power delivery applications.
A. Petersson +23 more
core +2 more sources
Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth
PhotonicsStable generation and propagation of single-polarization single-mode (SPSM) beams in hollow-core fiber (HCF) has become an important research direction.
Yong You +6 more
doaj +1 more source
Reversible positioning of single molecules inside zero-mode waveguides [PDF]
, 2014 We have developed a hybrid nanopore/zero-mode waveguide device for single-molecule fluorescence and DNA sequencing applications. The device is a freestanding solid-state membrane with sub-5 nm nanopores that reversibly delivers individual biomolecules to
Foquet, Mathieu +4 more
core +2 more sources
Unified View of Deformed Single - Mode Oscillator Algebras
, 1994 A general framework for the deformation of the single-mode oscillators is presented and all deformed single-mode oscillators are unified. The extensions of the Aric-Coon, genon, the para-Bose and the para-Fermi oscillators are proposed.
Arik +30 more
core +2 more sources
Near-optimal two-mode spin squeezing via feedback [PDF]
, 2002 We propose a feedback scheme for the production of two-mode spin squeezing. We determine a general expression for the optimal feedback, which is also applicable to the case of single-mode spin squeezing.
A. Furusawa +18 more
core +2 more sources