Results 141 to 150 of about 882,801 (311)

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source

Precisely Tunable 780 nm External Cavity Diode Laser

Photonics
State-of-the-art research on narrow-linewidth external cavity semiconductor lasers has provided limited discussion on the capability of continuous wavelength tuning.
Baoni Han, Yuanlin Shi, Xu Tang, Jing Li, Chenggang Guan, Junzhu Ye, Rongxu Shen   +6 more
doaj   +1 more source

Ho:YAG laser at 2097 nm pumped by a narrow linewidth tunable 1.91 μm laser. [PDF]

Sci Rep, 2023
Tian J, Zhao L, Li Z, Bian J, Ye Q, Wang H, Tan R.   +6 more
europepmc   +1 more source

Structural Basis of the Membrane Association by the Conserved RocS Membrane‐Targeting Sequence in Streptococcus

Advanced Science, EarlyView.
Chromosome segregation in Streptococcus pneumoniae depends on RocS, a bitopic protein whose membrane‐anchoring mechanisms were unclear. Using NMR and AFM, this study reveals that the widely conserved RocS anchor binds to membranes via a conserved kink‐helix motif which inserts into lipid nanodomains.
Ana Álvarez‐Mena, Estelle Morvan, Clara Lambert, Anagha Kallisseri Parambil, Martin Lefeuvre, Zeren Xu, Nadia El Mammeri, Florian Malard, Erick J. Dufourc, Cécile Feuillie, Christophe Grangeasse, Birgit Habenstein   +11 more
wiley   +1 more source

Integrated Electro‐Optically Tunable Narrow‐Linewidth III–V Laser

Advanced Photonics Research
Herein, an integrated electro‐optically tunable narrow‐linewidth III–V laser with an output power of 738.8 μW and an intrinsic linewidth of 45.55 kHz at the C band is demonstrated.
Yiran Zhu, Shupeng Yu, Zhiwei Fang, Difeng Yin, Jian Liu, Zhe Wang, Yuan Zhou, Yu Ma, Haisu Zhang, Min Wang, Ya Cheng   +10 more
doaj   +1 more source

Red narrow-linewidth lasing and frequency comb from gain-switched self-injection-locked Fabry-Pérot laser diode. [PDF]

Sci Rep, 2023
Shitikov AE, Galiev RR, Min'kov KN, Kondratiev NM, Cordette SJ, Lobanov VE, Bilenko IA.   +6 more
europepmc   +1 more source

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

Optical Spin Polarization of a Narrow-Linewidth Electron-Spin Qubit in a Chromophore/Stable-Radical System. [PDF]

Angew Chem Int Ed Engl, 2023
Qiu Y, Equbal A, Lin C, Huang Y, Brown PJ, Young RM, Krzyaniak MD, Wasielewski MR.   +7 more
europepmc   +1 more source

Narrow linewidth fibre laser sources

, 1990
Laser sources based on rare-earth-doped single-mode optical fibres offer considerable potential as narrow-linewidth sources. Fibre laser sources have the capacity to produce highly-coherent, low-noise output, pumped by laser diodes. Fibre lasers are inherently compatible with optical fibres for transmission and sensing applications.
Cowle, G.J., Reekie, L., Morkel, P.R., Payne, D.N.   +3 more
openaire   +1 more source