Results 1 to 10 of about 581,869 (300)

Stabilisation of central wavelength of erbium‐doped fibre source as part of high‐accuracy fibre optic gyroscopes

open access: yesIET Optoelectronics, 2021
The stability of the central wavelength of the erbium‐doped fibre source (EDFS) is one of the most important parameters to ensure the accurate operation of navigation systems based on high‐accuracy fibre optic gyroscopes (FOGs).
Evgenii Vostrikov   +6 more
doaj   +1 more source

Stopping Light All Optically [PDF]

open access: yesPhysical Review Letters, 2004
We show that light pulses can be stopped and stored all-optically, with a process that involves an adiabatic and reversible pulse bandwidth compression occurring entirely in the optical domain. Such a process overcomes the fundamental bandwidth-delay constraint in optics, and can generate arbitrarily small group velocities for light pulses with a given
Yanik, Mehmet Fatih, Fan, Shanhui
openaire   +3 more sources

Enhanced Wind-Field Detection Using an Adaptive Noise-Reduction Peak-Retrieval (ANRPR) Algorithm for Coherent Doppler Lidar

open access: yesAtmosphere, 2023
Wind fields provide direct power for exchanging energy and matter in the atmosphere. All-fiber coherent Doppler lidar is a powerful tool for detecting boundary-layer wind fields.
Qingsong Li   +7 more
doaj   +1 more source

Discontinuous space variant sub-wavelength structures for generating radially polarized light in visible region [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2011
A discontinuous space variant sub-wavelength dielectric grating is designed and fabricated for generating radially polarized light in visible region (λ = 632.8 nm).
Ghadyani Z.   +5 more
doaj   +1 more source

Opto-optical light deflection [PDF]

open access: yesApplied Optics, 1983
Light deflection is accomplished by diffraction from a transient index modulation established as a grating of variable frequency in an optical material by the interference of two controlling light beams. This device may be considered an opto-optical analog to an acoustooptical deflector, in that a change in angular deflection is created by altering the
Sincerbox, Gleen T., Roosen, Gérald
openaire   +3 more sources

Robust speckle-free imaging using random lasers enhanced by TiN nanoparticles in complex scattering environments

open access: yesNanophotonics, 2023
A light source with narrowband, sufficient brightness, and low spatial coherence is required for certain applications such as optical imaging and free-space optical communication.
Wan Yuan   +6 more
doaj   +1 more source

The phase shift induced by a single atom in free space [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
In this article we theoretically study the phase shift a single atom imprints onto a coherent state light beam in free space. The calculations are performed in a semiclassical framework.
Sondermann M., Leuchs G.
doaj   +1 more source

Nanostructures + Light = ‘New Optics’ [PDF]

open access: yesJournal of Optics A: Pure and Applied Optics, 2005
Suddenly, at the end of the last century, classical optics and classical electrodynamics became fashionable again. Fields that several generations of researchers thought were comprehensively covered by the famous Born and Wolf textbook and were essentially dead as research subjects were generating new excitement.
Zheludev, N.I., Shalaev, V.
openaire   +2 more sources

Optical frequency averaging of light

open access: yesOptics Express, 2023
The use of averaging has long been known to reduce noise in statistically independent systems that exhibit similar levels of stochastic fluctuation. This concept of averaging is general and applies to a wide variety of physical and man-made phenomena such as particle motion, shot noise, atomic clock stability, measurement uncertainty reduction, and ...
William Loh   +5 more
openaire   +3 more sources

Squeezed-Light Optical Magnetometry [PDF]

open access: yesPhysical Review Letters, 2010
We demonstrate a light-shot-noise-limited magnetometer based on the Faraday effect in a hot unpolarized ensemble of rubidium atoms. By using off-resonant, polarization-squeezed probe light, we improve the sensitivity of the magnetometer by 3.2 dB. The technique could improve the sensitivity of the most advanced magnetometers and quantum nondemolition ...
Wolfgramm, Florian   +5 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy