Results 11 to 20 of about 584,393 (295)

Nonlinear optics with structured light

open access: yesOpto-Electronic Advances, 2022
The interest in tailoring light in all its degrees of freedom is steadily gaining traction, driven by the tremendous developments in the toolkit for the creation, control and detection of what is now called structured light.
Wagner Tavares Buono, Andrew Forbes
doaj   +3 more sources

Field Verification of Vehicle-Mounted All-Fiber Coherent Wind Measurement Lidar Based on Four-Beam Vertical Azimuth Display Scanning

open access: yesRemote Sensing, 2023
Wind parameters play a vital role in studying atmospheric dynamics and climate change. In this study, a vehicle-mounted coherent wind measurement Lidar (CWML) with a wavelength of 1.55 µm is demonstrated based on a four-beam vertical azimuth display (VAD)
Xiaojie Zhang   +4 more
doaj   +1 more source

Enhancing the Self-Healing Ability of a Partially Coherent Airy Beam via Fourier Processing: Numerical Investigation

open access: yesPhotonics, 2023
Almost all of the beams under propagation are believed to suffer severe distortion when the source coherence deteriorates, due to the optical diffraction.
Yuefeng Zhao   +5 more
doaj   +1 more source

Study of Mixed Pollution of Haze and Dust in Jinan Based on LiDAR

open access: yesPhotonics, 2022
From 26 March to 30 March 2021, a severe mixed haze and dust pollution process occurred in Jinan, China. Ground light detection and ranging (LiDAR) and satellite radar were used to observe and analyze the mixed pollution. In this study, a variety of data,
Yuefeng Zhao   +5 more
doaj   +1 more source

Low-Threshold Nanolaser Based on Hybrid Plasmonic Waveguide Mode Supported by Metallic Grating Waveguide Structure

open access: yesNanomaterials, 2021
A high Q-factor of the nanocavity can effectively reduce the threshold of nanolasers. In this paper, a modified nanostructure composed of a silver grating on a low-index dielectric layer (LID) and a high-index dielectric layer (HID) was proposed to ...
Xin Zhang   +5 more
doaj   +1 more source

Wavelength-Tunable Nonlinear Mirror Mode-Locked Laser Based on MgO-Doped Lithium Niobate

open access: yesCrystals, 2020
We present a high-power, wavelength-tunable picosecond Yb3+: CaGdAlO4 (Yb:CALGO) laser based on MgO-doped lithium niobate (MgO:LN) nonlinear mirror mode locking. The output wavelength in the continuous wave (CW) regime is tunable over a 45 nm broad range.
Lina Zhao   +4 more
doaj   +1 more source

Toward a Corrected Knife-Edge-Based Reconstruction of Tightly Focused Higher Order Beams

open access: yesFrontiers in Physics, 2020
The knife-edge method is an established technique for profiling of even tightly focused light beams. However, the straightforward implementation of this method fails if the materials and geometry of the knife-edges are not chosen carefully or, in ...
Sergej Orlov   +8 more
doaj   +1 more source

Second-Order Statistics of Self-Splitting Structured Beams in Oceanic Turbulence

open access: yesPhotonics, 2023
Free-space optical communication is restricted by random media-stimulated beam degradation. However, partially coherent structured beams modulated by the coherence structure can potentially mitigate this negative effect. By employing the extended Huygens–
Liming Liu   +6 more
doaj   +1 more source

Unpolarized light in quantum optics [PDF]

open access: yes, 2000
We present a new derivation of the unpolarized quantum states of light, whose general form was first derived by Prakash and Chandra [Phys. Rev. A 4, 796 (1971)]. Our derivation makes use of some basic group theory, is straightforward, and offers some new
A. Luis   +11 more
core   +2 more sources

Optics: general-purpose scintillator light response simulation code [PDF]

open access: yes, 2000
We present the program optics that simulates the light response of an arbitrarily shaped scintillation particle detector. Predicted light responses of pure CsI polygonal detectors, plastic scintillator staves, cylindrical plastic target scintillators and
B.K. Wright   +32 more
core   +2 more sources

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