Results 81 to 90 of about 36,081 (260)

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

Advanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini, Jaspreet Walia, Luis Angel Mayoral‐Astorga, Hyung Woo Choi, Arnaud Weck, Pierre Berini   +5 more
wiley   +1 more source

Luminescent Donor‐Acceptor Radical With Propeller Chirality: Bright and Photostable Red Circularly Polarized Luminescence and Whispering Gallery Mode Resonance

Angewandte Chemie, EarlyView.
A series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Kazuhiro Nakamura, Kenshiro Matsuda, Kosuke Anraku, Keiko Yamaoka, Taisuke Matsumoto, Fumitaka Ishiwari, Takeaki Zaima, Wataru Ota, Emiko Fujiwara, Tohru Sato, Yoshitaka Inoue, Soh Kushida, Yohei Yamamoto, Takuya Hosokai, Ken Albrecht   +14 more
wiley   +2 more sources

A 750 mW, continuous-wave, solid-state laser source at 313 nm for cooling and manipulating trapped 9Be+ ions

, 2011
We present a solid-state laser system that generates 750 mW of continuous-wave single-frequency output at 313 nm. Sum-frequency generation with fiber lasers at 1550 nm and 1051 nm produces up to 2 W at 626 nm.
A. C. Wilson, A. Friedenauer, A. P. VanDevender, A. Yariv, A.M. Steane, C. Ospelkaus, C.S. Adams, D. Eimerl, D. J. Wineland, D. Kielpinski, D. Leibfried, D.J. Kuizenga, D.J. Wineland, D.J. Wineland, D.J. Wineland, D.L. Hart, D.N. Nikogosyan, E.S. Polzik, F.M. Librecht, G.D. Boyd, G.D. Miller, H. Moosmüller, H. Schnitzler, J. A. Mlynek, J.M. Amini, K. R. Brown, K.R. Brown, L.E. Myers, P.W. Shor, R. Blatt, R. Fischer, R. Ozeri, S. Vasilyev, T. Freegarde, T.W. Hänsch, V.D. Volosov, V.G. Dmitriev, W. Sellmeier, W.R. Bosenberg   +38 more
core   +1 more source

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

Advanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu, Yu‐Hsin Liao, Chih‐Chung Tsai, Pei‐Ying Yang, Yu‐Hao Chang, Yu‐Hui Liang, D. Chandrasekhar Kakarla, Ajay Tiwari, C. Dhanasekhar, Chin‐Wei Wang, Daisuke Okuyama, Chia‐Nung Kuo, Chin‐Shan Lue, Tzu‐Hsuan Weng, Kung‐Hsuan Lin, Jau‐Wern Chiou, Chi‐Hung Lee, Hung‐Duen Yang   +17 more
wiley   +1 more source

Monitoring Redox Pathways and Performance Limitations in Lithium‐Sulfur Batteries Using In Situ 7/6Li and 33S NMR Spectroscopies

Angewandte Chemie, EarlyView.
Lithium‐sulfur (Li‐S) batteries contain various NMR‐active nuclear isotopes, including 7Li, 6Li and 33S, which are sensitive to the different chemical reactions that occur during battery cycling. Herein, we use a combination of lithium and sulfur operando NMR spectroscopy to provide new insights at the molecular level, fundamental understanding being ...
Jana B. Fritzke, Sunita Dey, Christopher A. O’ Keefe, Jeongjae Lee, Kazuhiro Kamiguchi, Daisuke Mori, Yuri Nakayama, Clare P. Grey   +7 more
wiley   +2 more sources

Spectroscopy of a narrow-line laser cooling transition in atomic dysprosium

, 2010
The laser cooling and trapping of ultracold neutral dysprosium has been recently demonstrated using the broad, open 421-nm cycling transition. Narrow-line magneto-optical trapping of Dy on longer wavelength transitions would enable the preparation of ...
Benjamin L. Lev, C. Cohen-Tannoudji, D. Budker, H. J. Metcalf, I. I. Sobelman, Mingwu Lu, Seo Ho Youn, W. C. Martin, W. Demtröder   +8 more
core   +1 more source

Wavefront Line‐Scan Imaging Via a Single‐Pixel Detector

Advanced Science, EarlyView.
We propose and demonstrate a wavefront line‐scan imaging paradigm that integrates 1D spatial light modulation with single‐pixel detection. Benefiting from 1D modulation, not only is the imaging speed improved, but also the storage of modulation patterns is reduced by several orders of magnitude.
Nuo Liu, Aiping Zhai, Tingting Zheng, Wenjing Zhao, Dong Wang   +4 more
wiley   +1 more source

Brillouin Backscattering Light Properties of Chaotic Laser Injecting Into an Optical Fiber

IEEE Photonics Journal, 2017
Laser diode-based optical chaos is attractive for the fundamental physics as well as practical tasks in such as secure communications, random number generation, and fiber sensing.
Mingjiang Zhang, Hui Liu, Jianzhong Zhang, Yi Liu, Ruixia Liu   +4 more
doaj   +1 more source

Dye laser traveling wave amplifier [PDF]

Injection locking was applied to a cavity-dumped coaxial flashlamp pumped dye laser in an effort to obtain nanosecond duration pulses which have both high energy and narrow-linewidth. In the absence of an injected laser pulse, the cavity-dumped dye laser
Davidson, F., Hohman, J.
core   +1 more source