Results 61 to 70 of about 2,995,639 (168)
Laser frequency stabilization using a spatially multiplexed microfabricated Rb vapor cell
Applied Physics ExpressWe demonstrate a laser stabilization based on a spatially-multiplexed, microfabricated rubidium vapor cell. This design integrates multiple optical apertures within a cell, enabling a single input beam to simultaneously capture both Doppler-broadened and
Seji Kang +12 more
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Passive Bistatic Ground-Based Synthetic Aperture Radar: Concept, System, and Experiment Results
Remote Sensing, 2019 A passive bistatic ground-based synthetic aperture radar (PB-GB-SAR) system without a dedicated transmitter has been developed by using commercial-off-the-shelf (COTS) hardware for local-area high-resolution imaging and displacement measurement purposes.
Weike Feng +5 more
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AIP AdvancesIon traps serve as the venue for confining ions and exciting ionic transitions in ion optical clocks, where the geometric dimensions of the electrodes within the ion trap directly impact the performance metrics of the ion optical clocks.
Chaowei Wang +3 more
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Prospective Optical Lattice Clocks in Neutral Atoms with Hyperfine Structure
AtomsOptical lattice clocks combine the accuracy and stability required for next-generation frequency standards. At the heart of these clocks are carefully engineered optical lattices tuned to a wavelength where the differential AC Stark shift between ground ...
Tobias Bothwell
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Integrated multi-port multi-wavelength coherent optical source for beyond Tb/s optical links
Nature CommunicationsMicrocomb-based sources formed by placing an integrated demultiplexer with an ultra-low power consumption after an efficient optical frequency comb play a key role in many large-scale optical links for data centers and AI systems.
Ali Pirmoradi +6 more
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Time-Frequency Methods in Communications
, 2016 The wide range of potential applications of time-frequency (t, f) methods made them an important tool in most fields of science and engineering. A large number of approaches exist, depending on the application considered. Key (t, f) methodologies are presented on specific applications in this Part V of the book and illustrated using selected examples ...
Amin, M. G. +8 more
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Highly coherent two-color laser and its application for low-noise microwave generation
Nature CommunicationsTwo-color lasers with high coherence are essential for precision measurements and low-noise photonic microwave generation. However, conventional two-color lasers often suffer from reduced coherence when the frequency spacing is large.
Bibo He +10 more
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Geo-spatial Information ScienceAccording to General Relativity Theory (GRT), by comparing the frequencies between two precise clocks at two different stations, the gravity potential (geopotential) difference between the two stations can be determined due to the gravity frequency shift
Kuangchao Wu +4 more
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