Modal Analysis of Pseudo-Schell Model Sources
Photonics, 2021 All pseudo-Schell model sources have been shown to possess the same continuous set of circularly symmetric modes, all of them presenting a conical wavefront.
Massimo Santarsiero +4 more
doaj +1 more source
Symmetry Criterion and Far-Field Control of Photonic-Crystal Surface-Emitting Lasers
Applied Sciences, 2022 Photonic-crystal surface-emitting lasers (PCSELs) have led to amazing results in overcoming the divergence limitation of semiconductor lasers. However, so far, the physical mechanism behind this promising control of far-field characteristics is still ...
Ziye Wang +6 more
doaj +1 more source
Microsphere femtosecond laser sub-50 nm structuring in far field via non-linear absorption
Opto-Electronic Advances, 2023 Creation of arbitrary features with high resolution is critically important in the fabrication of nano-optoelectronic devices. Here, sub-50 nm surface structuring is achieved directly on Sb2S3 thin films via microsphere femtosecond laser irradiation in ...
Zhenyuan Lin +3 more
doaj +1 more source
Far-field Perfect Imaging with Time Modulated Gratings [PDF]
, 2022 We study the capabilities of time-modulated diffraction gratings as imaging devices. It is shown that a time-dependent but transversally homogeneous slab can be used to make a perfect image of an object in the far-field, since all the evanescent modes ...
Pawel Packo (7873904) +1 more
core +1 more source
Far-Field Super-Resolution Imaging By Nonlinear Excited Evanescent Waves [PDF]
, 2021 Abbe's resolution limit, one of the best-known physical limitations, poses a great challenge for any wave systems in imaging, wave transport, and dynamics.
Jianjun Cao (14137389) +9 more
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Far-Field Radar Cross-Section Determination From Near-Field 3-D Synthetic Aperture Imaging With Arbitrary Antenna Scanning Surfaces [PDF]
, 2021 This article has been accepted for publication in IEEE Transactions on Antennas and Propagation.Citation information:T. Watanabe and H. Yamada, “Far-Field Radar Cross-Section Determination From Near-Field 3-D Synthetic Aperture Imaging With Arbitrary ...
Takuma Watanabe (11548087) +1 more
core +1 more source
Generalized far-field integral
Optics Express, 2021 The propagation of light in homogeneous media is a crucial technology in optical modeling and design as it constitutes a part of the vast majority of optical systems. Any improvements in accuracy and speed are therefore helpful. The far-field integral is one of the most widely used tools to calculate diffraction patterns.
Zongzhao Wang +3 more
openaire +2 more sources
Narrow lateral far field divergence obtained with spatially modulated broad-area lasers [PDF]
, 2021 A laser design combining longitudinal-lateral gain-loss modulation with additional phase tailoring is presented. Under pulsed operation simulations predict a single-lobed far field angle of Θ40% = 0.4° at 100 A and far-field measurements confirm a ...
Zeghuzi, Anissa +11 more
core +1 more source
Archives of Acoustics, 2014 A numerical method is developed for estimating the acoustic power of any baffled planar structure, which is vibrating with arbitrary surface velocity profile. It is well known that this parameter may be calculated with good accuracy using near field data,
Mario A. GONZÁLEZ-MONTENEGRO +3 more
doaj +1 more source
Formation Mechanism of Sub-Micron Pharmaceutical Composite Particles derived from Far- and Near Field Raman microscopy [PDF]
, 2020 Surface-enhanced Raman spectroscopy (SERS) and confocal Raman microscopy are applied to investigate the structure and the molecular arrangement of a sub-micron pharmaceutical organic composite.
Yan, Busby +3 more
core +1 more source