Continuous-wave self-focusing and self-trapping of light in artificial Kerr media

A Ashkin, JM Dziedzic, PW Smith - Optics letters, 1982 - opg.optica.org
… 1, we used a focused beam and observed the diameter at a distance l of ~200 μm,
corresponding to many confocal distances. Values of scattering loss α 0 were chosen for which the …

Observation of continuous-wave on-resonance “self-focusing

K Tai, HM Gibbs, MC Rushford, N Peyghambarian… - Optics letters, 1984 - opg.optica.org
… The well-known self-focusing of a Gaussian-profile cw laser beam, which … focuses the
entire beam.[1] We report what is to our knowledge the first observation of a new cw “self-focusing,” …

Continuous waves generated by focused radiators

EL Madsen, MM Goodsitt, JA Zagzebski - The Journal of the Acoustical …, 1981 - pubs.aip.org
… to continuous wave (ew) bursts generated with a focused transducer were also made along
lines perpendicular to the beam axis at seven different locations along the beam … pulse beam

The effect of spot size and laser beam quality on welding performance when using high-power continuous wave solid-state lasers

G Verhaeghe, P Hilton - … Congress on Applications of Lasers & Electro …, 2005 - pubs.aip.org
… and focusing optics of a given diameter, a higher beam quality … the beam waist and the solid
angle formed by the focusing beambeam quality will produce a greater depth of focus at the …

Theory of continuous-wave beam propagation in nonlinear optical waveguides

B Bendow, PD Gianino, N Tzoar - JOSA, 1981 - opg.optica.org
focusing in a homogeneous medium, we find that the waveguide effect dominates, ie, the
beam … nonlinearity; the beam becomes unstable and displays self-focusing analogous to that in …

STED microscopy with continuous wave beams

KI Willig, B Harke, R Medda, SW Hell - Nature methods, 2007 - nature.com
… We focused the beams into an aqueous solution of the fluorophore Atto647N (Atto-tec)
using an oil immersion lens of NA = 1.4 and directed the fluorescence collected by the lens to a …

Fabrication of microlenses in Ag-doped glasses by a focused continuous wave laser beam

I Antonov, F Bass, Y Kaganovskii… - Journal of applied …, 2003 - pubs.aip.org
… The dependence of the microlens size on the exposure time and the laser power of a focused
continuous wave cw laser beam is discussed. It is shown that the optical transmission of …

Reduced harmonic representation for continuous wave, shock-producing focused beams

T Christopher - IEEE transactions on ultrasonics, ferroelectrics …, 2009 - ieeexplore.ieee.org
An extension to the frequency domain solution to Burgers' equation (FDSBE) is presented in
the context of a continuous wave, nonlinear beam propagation model. The extension adds …

Continuous-wave ultrasonic modulation of scattered laser light to image objects in turbid media

L Wang, SL Jacques, X Zhao - Optics letters, 1995 - opg.optica.org
… The ultrasound wave focused into the turbid media modulates the laser light passing
through the ultrasonic focal zone. The modulated laser light collected by a photomultiplier tube …

13.1 W, high-beam-quality, narrow-linewidth continuous-wave fiber-based source at 970 nm

K Devi, SC Kumar, M Ebrahim-Zadeh - Optics Express, 2011 - opg.optica.org
… we focused the fundamental beam to waist radii of w ο ~55.5, 45, 37.5, and 30.5 μm at the
center of the crystal, corresponding to confocal focusing … with the confocal focusing parameter, …