Results 41 to 50 of about 815,097 (318)

Recent Trends and Advances of Silicon-Based Integrated Microwave Photonics

open access: yesPhotonics, 2019
Multitude applications of photonic devices and technologies for the generation and manipulation of arbitrary and random microwave waveforms, at unprecedented processing speeds, have been proposed in the literature over the past three decades.
R. Maram   +3 more
semanticscholar   +1 more source

Integrated Microwave Photonic Filters [PDF]

open access: yesOptical Fiber Communication Conference (OFC) 2021, 2020
Microwave signal filtering is a fundamental and central functionality in radio frequency systems. We review the principles, architectures, and superior performance of emerging integrated microwave photonic filters enabled by on-chip linear and nonlinear photonic devices.
Yang Liu   +3 more
openaire   +2 more sources

Quantum probe of an on-chip broadband interferometer for quantum microwave photonics

open access: yes, 2018
Quantum microwave photonics aims at generating, routing, and manipulating propagating quantum microwave fields in the spirit of optical photonics. To this end, the strong nonlinearities of superconducting quantum circuits can be used to either improve or
Deppe, F.   +13 more
core   +1 more source

Movement Detection in Soft Robotic Gripper Using Sinusoidally Embedded Fiber Optic Sensor

open access: yesSensors, 2020
Soft robotics is an emerging field, since it offers distinct opportunities in areas where conventional rigid robots are not a feasible solution. However, due to the complex motions of soft robots and the stretchable nature of soft building materials ...
Mei Yang   +3 more
doaj   +1 more source

Melting-layer modelling at C-Band [PDF]

open access: yesAdvances in Radio Science, 2010
Stratiform cloud formations, such as a uniform type of precipitating clouds, are sub dividable into layers with different aggregate states. In this way, it is adaptable to measurements with polarimetric radar.
J. Steinert, M. Chandra
doaj   +1 more source

An Integrated-Photonics Optical-Frequency Synthesizer

open access: yes, 2017
Integrated-photonics microchips now enable a range of advanced functionalities for high-coherence applications such as data transmission, highly optimized physical sensors, and harnessing quantum states, but with cost, efficiency, and portability much ...
A Bluestone   +65 more
core   +1 more source

Frequency-Scaling-Based Spaceborne Squint SAR Sparse Imaging

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
In synthetic aperture radar (SAR), due to the characteristics of squint data in spaceborne imaging geometry, a more accurate range cell migration correction operation is necessary.
Yufan Song   +4 more
doaj   +1 more source

Slow waves in locally resonant metamaterials line defect waveguides [PDF]

open access: yes, 2016
In the past decades, many efforts have been devoted to the temporal manipulation of waves, especially focusing on slowing down their propagation. In electromagnetism, from microwave to optics, as well as in acoustics or for elastic waves, slow wave ...
Berthelot, Thomas   +5 more
core   +4 more sources

Long wavelength VCSEL-by-VCSEL optical injection-Locking [PDF]

open access: yes, 2009
VCSEL-by-VCSEL optical injection-locking to obtain high cut-off frequencies of 1.3 μm Vertical-Cavity Surface-Emitting Lasers (VCSELs) is demonstrated. A detailed physical explanation of the underlying mechanism is presented.
Bacou, Alexandre   +6 more
core   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

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