Results 1 to 10 of about 11,088,671 (294)

Electro-optical nonlinearity and Kerr effect engineering in SnO2-doped nematic liquid crystal for advanced photonic applications [PDF]

open access: yesScientific Reports
This study reports a concentration- and temperature-dependent analysis of the Kerr effect and third-order nonlinear optical response in SnO2 NP-ML-1102 composites (0.1–0.9 wt%).
Mahsa Khadem Sadigh   +2 more
doaj   +2 more sources

A broadband lithium tantalate-on-silicon nitride heterogeneous modulator for optical and terahertz communications and radar sensing [PDF]

open access: yesNature Communications
Photonic integrated circuits have driven advances in optical interconnects, wireless communications, seamless sensing. Electro-optic modulators, which bridge the electronic and optical domains, act as the cornerstone of these systems.
Jinwei Su   +16 more
doaj   +2 more sources

An Optical Smartphone-Based Inspection Platform for Identification of Diseased Orchids

open access: yesBiosensors, 2021
Infections of orchids by the Odontoglossum ringspot virus or Cymbidium mosaic virus cause orchid disfiguration and are a substantial source of economic loss for orchid farms. Although immunoassays can identify these infections, immunoassays are expensive,
Kuan-Chieh Lee   +13 more
doaj   +1 more source

Hybrid Coding and Filtering Technique for Optical IM-DD Link With Robustness to Multipath Interference and Bandwidth Limitation

open access: yesIEEE Photonics Journal, 2021
In this work, a hybrid code division multiplexing (CDM) coding and digital filtering method for optical intensity modulation and direct detection (IM-DD) link is investigated to address multipath interference (MPI) and channel bandwidth limitation.
Lin Sun   +5 more
doaj   +1 more source

Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action

open access: yesNature Communications, 2023
Recent quantum technologies have established precise quantum control of various microscopic systems using electromagnetic waves. Interfaces based on cryogenic cavity electro-optic systems are particularly promising, due to the direct interaction between ...
Liu Qiu   +4 more
doaj   +1 more source

Small All-Range Lidar for Asteroid and Comet Core Missions

open access: yesSensors, 2021
We report the development of a new type of space lidar specifically designed for missions to small planetary bodies for both topographic mapping and support of sample collection or landing.
Xiaoli Sun   +12 more
doaj   +1 more source

ESTIMATION OF MATCHING OF OPTIMAL DYNAMIC SPECTRAL FILTRATION IN ELECTRO-OPTICAL SYSTEM OF TARGET DETECTION [PDF]

open access: yesРадиофизика и электроника, 2018
The article is devoted to the study of the properties of the electro-optical systems with matched spectral dynamic filtration. It is usually supposed that the optimal optical signal detector is synthesized under the assumption of a priori information ...
L. F. Kupchenko   +2 more
doaj   +1 more source

Chaotic Breathers in Delayed Electro-Optical Systems [PDF]

open access: yesPhysical Review Letters, 2005
We show that in integro-differential delayed dynamical systems, a hybrid state of simultaneous fast-scale chaos and slow-scale periodicity can emerge subsequently to a sequence of Hopf bifurcations. The resulting time trace thereby consists in chaotic oscillations "breathing" periodically at a significantly lower frequency.
Kouomou, Y.C.   +3 more
openaire   +4 more sources

Ultra-broadband achromatic metalens with high performance for the entire visible and near-infrared spectrum

open access: yesResults in Physics, 2023
Metalenses provide unprecedented opportunities to overcome the limitations of conventional refractive lenses, which have been extensively studied to achieve achromatic focusing and imaging in various wavebands. However, it is a challenging task to create
Yechuan Zhu   +6 more
doaj   +1 more source

Pattern-tunable synthetic gauge fields in topological photonic graphene

open access: yesNanophotonics, 2022
We propose a straightforward and effective approach to design, by pattern-tunable strain-engineering, photonic topological insulators supporting high quality factors edge states.
Huang Zhen-Ting   +6 more
doaj   +1 more source

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