Results 121 to 130 of about 2,791,273 (292)

Ultra-low threshold deep-ultraviolet generation in hollow-core fiber

We have lowered the pump energy threshold for the generation of tuneable deep-ultraviolet pulses to the tens of nano-joules level by pumping a record small-core anti-resonant fiber with a hollow core diameter of just 6 ...
James Stone (3432734), Stephanos Yerolatsitis (14388111), Leah Murphy (11519778), Mohammed Sabbah (14366337), Christian Brahms (14340405), Tim Birks (17803292), John Travers (7314467), Kerrianne Harrington (14308579)   +7 more
core   +1 more source

High Q photonic crystal cavities realised using deep ultraviolet lithography

, 2014
Deep Ultraviolet Lithography is essential for the mass production of silicon devices. To date, restrictions in the process have prevented the realization of high Q factor optical resonators. Here, we demonstrate Q-factor values of approx.
Thomas F. Krauss, Welna, K, O'Faolain, Liam, Pieter Dumon, Khanna, Amit, Karl Welna, Debnath, Kapil, Krauss, TF, Dumon, Pieter, O'Faolain, L, Debnath, K, Liam O'Faolain, Krauss, Thomas F., Kapil Debnath, Amit Khanna, Welna, Karl   +15 more
core   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

Advanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee, Hiroya Nishikawa, Tae‐Woong Moon, Dong‐Ha Kim, Fumito Araoka, Suk‐Won Choi   +5 more
wiley   +1 more source

Strain modulated nanostructure patterned AlGaN-based deep ultraviolet multiple-quantum-wells for polarization control and light extraction efficiency enhancement

, 2019
Strain modulated nanostructure patterned AlGaN-based deep ultraviolet multiple-quantum-wells for polarization control and light extraction efficiency ...
Dai, Jiangnan, Sheikhi, Moheb, Guo, Wei, Long, Hanling, Li, Liang, Xu, Houqiang, Chen, Changqing, Ye, Jichun, Jiang, Jie'an   +8 more
core   +1 more source

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

Advanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim, Hyeseoung Lim, Ji Min Lee, Heeyeon Kang, Yongkwon Song, Woojae Chang, So‐Jin Park, Jin Yoo, Atsushi Hozumi, Jinhan Cho, Jongkuk Ko, Sanghyuk Wooh   +11 more
wiley   +1 more source

Deep-trap ultraviolet persistent phosphor for advanced optical storage application in bright environments

Light: Science & Applications
Extensive research has been conducted on visible-light and longer-wavelength infrared-light storage phosphors, which are utilized as promising rewritable memory media for optical information storage applications in dark environments.
Xulong Lv, Yanjie Liang, Yi Zhang, Dongxun Chen, Xihui Shan, Xiao-Jun Wang   +5 more
doaj   +1 more source

Ultraviolet supercontinuum generation in optical fibers

, 2018
We review the physics and techniques for the extension of multi-octave near-infrared pumped supercontinuum generation to the deep ultraviolet in solid-core photonic-crystal fibers (200 nm) and the vacuum-ultraviolet in gas-filled hollow-core fibers (113 ...
Travers, John C.; id_orcid, Teodora F. Grigorova, Grigorova, Teodora F., Federico Belli, John C. Travers, Belli, Federico; id_orcid   +5 more
core   +1 more source

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

Advanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai, Daniel Van Opdenbosch, Inge Schlapp‐Hackl, Teemu Välisalmi, Markus Linder, Michael Hummel, Wenwen Fang   +6 more
wiley   +1 more source

Deep Ultraviolet Dual Comb from a Thin-Disk Laser

Ultrafast Science
Dual-comb spectroscopy provides a marked advantage over single-comb techniques for molecular fingerprinting, particularly in terms of scanning speed. The single-cavity dual-comb system is a simpler approach to dual-comb operation.
Quanming Li, Hanze Bai, Xiaodan Teng, Hongshan Chen, Haijing Mai, Zhitao Zhang, Jinwei Zhang, Hongwen Xuan   +7 more
doaj   +1 more source

Deep-ultraviolet Raman scattering studies of monolayer graphene thin films

, 2015
We present joint experimental and theoretical investigations of the deep-ultraviolet Raman scattering spectra of monolayer graphene thin films. We found that upon a 266 nm laser excitation, while the G mode remains pronounced, the G0 mode is not observed.
Liu, Hsiang Lin, Siregar, Syahril, Kawata, Satoshi, Kumamoto, Yasuaki, Saito, Riichiro, Cheng, Chia Chin, Hasdeo, Eddwi H., Shen, Chih Chiang, Li, Lain Jong   +8 more
core   +1 more source