Results 31 to 40 of about 176,621 (116)

Henry Emy (illustrateur 1820-1874) : signature [1852]

Henry Emy (illustrateur 1820-1874) : signature [1852] ; sur médihal, mot-clef “Henry Emy (illustrateur 1820-1874)”
Henry Emy (illustrateur 1820-1874), ., Daphy, Éliane   +1 more
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Heavy metal fluoride glasses: A tutorial review

APL Photonics
Heavy metal fluoride glasses are the backbone of modern mid-infrared fiber technology. In the last few years, optical fibers made of fluorozirconate, fluoroaluminate, and fluoroindate glasses have reached the high level of reliability that is required ...
Marcel Poulain
doaj   +1 more source

Multimodal optical ultrasound imaging: Real-time imaging under concurrent CT or MRI

APL Photonics
Optical ultrasound (OpUS) imaging is an ultrasound modality that utilizes fiber-optic ultrasound sources and detectors to perform pulse-echo ultrasound imaging.
Fraser T. Watt, Vivek Muthurangu, Jennifer Steeden, Eleanor C. Mackle, Adrien E. Desjardins, Edward Z. Zhang, Paul C. Beard, Erwin J. Alles   +7 more
doaj   +1 more source

Chaotic dynamics in passively Q-switched Tm:LiYF4 laser operating at 2.3 μm on the 3H4 → 3H5 transition

APL Photonics
We report on the chaotic dynamics in a passively Q-switched 2.3-μm thulium laser operating on the 3H4 → 3H5 transition. The experiment exploits a Tm:LiYF4 crystal and various laser cavity configurations, involving an optional cascade laser on the 3F4 ...
Hippolyte Dupont, Matthieu Glasset, Pavel Loiko, Patrick Georges, Frédéric Druon   +4 more
doaj   +1 more source

Presentación. 1820-1823. Nuevas miradas sobre la primera revolución europea del siglo XIX

, 2021
Foreword. 1820-1823. Fresh outlooks on the first European Revolution of de 19th Century.Presentación. 1820-1823.
Carantoña Álvarez, Francisco
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Quantitative assessment of chlorine gas inhalation injury based on endoscopic OCT and spectral encoded interferometric microscope imaging with deep learning

APL Photonics
Chlorine exposure can cause severe airway injuries. While the acute effects of chlorine inhalation are well-documented, the structural changes resulting from the post-acute, high-level chlorine exposure remain less understood.
Zhikai Zhu, Hyunmo Yang, Hongqiu Lei, Yusi Miao, George Philipopoulos, Melody Doosty, David Mukai, Yuchen Song, Jangwoen Lee, Sari Mahon, Matthew Brenner, Livia Veress, Carl White, Woonggyu Jung, Zhongping Chen   +14 more
doaj   +1 more source

Widely tunable Ka-band optoelectronic oscillator integrated on thin film lithium niobate platform

APL Photonics
We report a novel widely tunable Ka-band optoelectronic oscillator (OEO) realized by integrating a Mach–Zehnder modulator (MZM), a thermally-tunable add-drop micro-ring resonator (MRR), and a Mach–Zehnder interferometer (MZI) on the thin film lithium ...
Rui Ma, Zijun Huang, Wei Ke, Xichen Wang, Peng Hao, X. Steve Yao, Xinlun Cai   +6 more
doaj   +1 more source

The manipulation of spin angular momentum for binary circular Airy beam during propagation

APL Photonics
The Airy beam has attracted great attention since it was proposed in 2007 due to its novel properties, such as non-diffraction, self-healing, and self-acceleration.
Guang-Bo Zhang, Xu-Zhen Gao, Qing-Lu Li, Ya-Ning Kong, Tian-Fei Zhao, Shi-Tong Xu, Ren-De Ma, Jia-Qi Lü, Yue Pan   +8 more
doaj   +1 more source

Efficiency improvement by using metal–insulator-semiconductor structure in InGaN/GaN micro-light-emitting diodes

Frontiers of Optoelectronics
InGaN/GaN micro-light-emitting diodes (micro-LEDs) with a metal–insulator-semiconductor (MIS) structure on the sidewall are proposed to improve efficiency.
Jian Yin, David Hwang, Hossein Zamani Siboni, Ehsanollah Fathi, Reza Chaji, Dayan Ban   +5 more
doaj   +1 more source

Was the Transition from the Artisanal Shop to the Non-Mechanized Fctry Assoc. w/Gains in Effcny?: Evdnc. from the U.S. Mnfctr. Censuses of 1820 & 1850 [PDF]

There are few more dramatic episodes in economic history than the displacement of the artisanal shop by the factory during the early stages of the Industrial Revolution as the predominant form of manufacturing organization.
Kenneth L. Sokoloff
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