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Multi‐Wavelength Achromatic 3D Meta‐holography with Zoom Function [PDF]
Advanced ScienceWith the development of nanofabrication technology, meta‐holography has shown unprecedented potential for light regulation. However, due to the wavelength mismatch, chromatic aberrations are inevitable in multi‐wavelength meta‐holography. Moreover, since
Chao Liu +17 more
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Multi-wavelength structured light based on metasurfaces for 3D imaging [PDF]
NanophotonicsStructured light projection provides a promising approach to achieving fast and non-contact three-dimensional (3D) imaging. The resolution is a crucial index that represents security and accuracy in applications such as face recognition and robot vision.
Lyu Baiying +10 more
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Nanophotonics, 2020 Multi-channel information encryption technology has been implemented by optical metasurfaces owing to their superior ability to control the phase, amplitude, wavelength and polarization of incident light.
Li Zhenfei, Premaratne Malin, Zhu Weiren
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Snapshot Multi-Wavelength Birefringence Imaging [PDF]
SensorsA snapshot multi-wavelength birefringence imaging measurement method was proposed in this study. The RGB-LEDs at wavelengths 463 nm, 533 nm, and 629 nm were illuminated with circularly polarized light after passing through a circular polarizer.
Shuang Wang, Xie Han, Kewu Li
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Astro-COLIBRI 2—An Advanced Platform for Real-Time Multi-Messenger Discoveries
Galaxies, 2023 The study of flaring astrophysical events in the multi-messenger approach requires instantaneous follow-up observations to better understand the nature of these events through complementary observational data.
Patrick Reichherzer +5 more
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Recognition of the finger vascular system using multi‐wavelength imaging
IET Biometrics, 2022 There has recently been intensive development of methods for identification and personal verification using the human finger vascular system (FVS). The primary focus of these efforts has been the increasingly sophisticated methods of image processing ...
Tomasz Moroń +4 more
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Relativistic Effects of Rotation in γ-ray Pulsars—Invited Review
Galaxies, 2021 In this paper, we consider the relativistic effects of rotation in the magnetospheres of γ-ray pulsars. The paper reviews the progress achieved in this field during the last three decades.
Zaza Osmanov
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PPG EduKit: An Adjustable Photoplethysmography Evaluation System for Educational Activities
Sensors, 2022 The grown interest in healthcare applications has made biomedical engineering one of the fastest growing disciplines in recent years. Photoplethysmography (PPG) has gained popularity in recent years due to its versatility for noninvasive monitoring of ...
Ángel Solé Morillo +5 more
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IEEE Photonics Journal, 2020 We investigate optical property of polarization-maintaining fiber taper (PMFT) for tunable multi-wavelength laser generation in a fiber ring cavity. A panda-type polarization fiber is fused and tapered into a fiber taper with a diameter of about 2.5 ...
Feng Yuan +3 more
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Sensors, 2023 Photoplethysmography (PPG) is widely used to assess cardiovascular health. However, its usage and standardization are limited by the impact of variable contact force and temperature, which influence the accuracy and reliability of the measurements ...
Joan Lambert Cause +4 more
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