Results 21 to 30 of about 143,337 (261)
IEEE Photonics Journal, 2022 To track vital signs on the wrist, a wearable system, named WrisTee, has been developed for remote health monitoring. Using three optical sensors with four light sources, WrisTee allows users to measure 12 photoplethysmogram (PPG) signals at three ...
Nguyen Mai Hoang Long, Wan-Young Chung
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Hyperspectral and Radar Airborne Imagery over Controlled Release of Oil at Sea
Sensors, 2017 Remote sensing techniques are commonly used by Oil and Gas companies to monitor hydrocarbon on the ocean surface. The interest lies not only in exploration but also in the monitoring of the maritime environment.
Sébastien Angelliaume +5 more
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Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication
Crystals, 2022 Photonic integrated circuits (PICs) play a leading role in modern information and communications technology. Among the core devices in PICs is the distributed feedback (DFB) multi-wavelength semiconductor laser array. Multi-wavelength semiconductor laser
Shen Niu +12 more
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Characterising the Long-Term Variability of Blazars in Leptonic Models
Galaxies, 2019 Most research on blazar variability focuses on individual flares to explain acceleration and radiation mechanisms and improve on current models. These short-time events (being minutes, hours, or days) might not be representative of the underlying ...
Hannes Thiersen +2 more
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Multi-Wavelength Photoacoustic Temperature Feedback Based Photothermal Therapy Method and System
Pharmaceutics, 2023 Photothermal therapy (PTT) is a new type of tumor treatment technology that is noninvasive, repeatable, and does not involve radiation. Owing to the lack of real-time and accurate noninvasive temperature measurement technology in current PTT surgical ...
Yiming Ma +5 more
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Feasibility Study of Multi-Wavelength Differential Absorption LIDAR for CO2 Monitoring
Atmosphere, 2016 To obtain a better understanding of carbon cycle and accurate climate prediction models, highly accurate and temporal resolution observation of atmospheric CO2 is necessary. Differential absorption LIDAR (DIAL) remote sensing is a promising technology to
Chengzhi Xiang +5 more
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Realization of Raman amplifier with reverse multi - wavelength pumping
Tongxin xuebao, 2006 A fiber Raman amplifier with bandwidth of 90 nm using eight pump lasers was presented. Based on the theoretic model, a gain of （11.5±1） dB was obtained with the 25 km SMF manufactured by Corning Corp as gain media.
WANG Hui +3 more
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Multi-Wavelength Spot-Array Beams Based on Tunable Dammann Grating Metasurface
Photonics, 2023 The structured light projection (SLP) method occupies a crucial position in three-dimensional (3D) imaging technology. Different working wavelengths of structured light can be employed depending on the situation.
Yuning Wu +3 more
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Multi-wavelength Optical Approach for Non-invasive Alcohol Detection [PDF]
한국정밀공학회지Alcohol acts as a central nervous system depressant and is classified as a psychoactive drug that impairs cognitive alertness and motor coordination. Driving after alcohol consumption slows reaction time in emergency situations and increases the risk of ...
Ye Chan Cho +3 more
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Advances in Ultrafast Fiber Lasers for Multiphoton Microscopy in Neuroscience
Photonics, 2023 Multiphoton microscopy (MPM) has emerged as a vital tool in neuroscience, enabling deeper imaging with a broader field of view, as well as faster and sub-cellular resolution.
Thulasi Srinivasan, Murat Yildirim
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