Results 51 to 60 of about 7,883 (257)

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

Advanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek, Junhwa Oh, Hyeonjung Kim, Minsik Park, Haein Cho, Jin Young Park, Hyeonchang Son, Taeyun Kim, Sung‐Un An, Yamin Zhang, Hyeon‐Jin Shin, Seyong Oh, Dong‐Ho Kang   +12 more
wiley   +1 more source

Tutorial: Coherent Raman light matter interaction processes

APL Photonics, 2018
Coherent Raman scattering processes such as coherent anti-Stokes Raman scattering and stimulated Raman scattering are described in a tutorial way keeping simple physical pictures and simple derivations.
Hervé Rigneault, Pascal Berto
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Evanescent stimulated Raman scattering in benzene-immersed fluorophosphate optical nanofibers [PDF]

EPJ Web of Conferences
Optical nanofibers (ONFs) made from fluorophosphate glass (OHARA - FPM) enable strong confinement, low losses, and enhanced evanescent fields for nonlinear optics. We show that the HE₁₁ mode achieves high Raman gain (11.62 m−1·W−1) in a compact 10 cm ONF
Gouasmia Hamza, Azzoune Abderrahim, Laouedj Oussama, Medjadba Hocine, Maali Abdelmadjid, Lebrun Sylvie   +5 more
doaj   +1 more source

Nano Borophene as a Programmable 2D Scaffold for Organized DNA Assembly and Long‐Range Energy Transfer

Advanced Functional Materials, EarlyView.
Borophene is introduced as a programmable 2D bio‐interface that organizes DNA through dual boron–sulfur and nucleobase interactions. This molecular architecture enables efficient long‐range nanosurface energy transfer, establishing new design principles for functional nano–bio interfaces and amplification‐free optical biosensing.
Teresa Aditya, Pranay Saha, John M. Sansalone, Shraddha Krishnakumar, Matthew Molinaro, André J. van der Vlies, Nada Maher, Adrienne Griffiths, Zakhro Zakirova, Ketan Dighe, Narayana R. Aluru, Dipanjan Pan   +11 more
wiley   +1 more source

Simulation of Stimulated Raman Scattering [PDF]

Journal of Fusion Energy, 2012
Stimulated Raman scattering (SRS) with ordinary (O-mode) wave at phase space (x, v) is investigated. For this purpose Vlasov equation is solved with one simulation method. Evolution of distribution function for an early time and a later time is presented.
Naghidokht, Ahmad, Parvazian, Akbar
openaire   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Transient stimulated Raman scattering spectroscopy and imaging

Light: Science & Applications
Stimulated Raman scattering (SRS) has been developed as an essential quantitative contrast for chemical imaging in recent years. However, while spectral lines near the natural linewidth limit can be routinely achieved by state-of-the-art spontaneous ...
Qiaozhi Yu, Zhengjian Yao, Jiaqi Zhou, Wenhao Yu, Chenjie Zhuang, Yafeng Qi, Hanqing Xiong   +6 more
doaj   +1 more source

Ultrafast-Laser-Induced Backward Stimulated Raman Scattering for Tracing Atmospheric Gases

EPJ Web of Conferences, 2013
By combining tunable broadband pulse generation with nonlinear spectral compression, we demonstrate a prototype scheme for highly selective coherent standoff sensing of air molecules and discuss its coupling to the recently demonstrated backward ...
Zheltiko A., Giniūnas L., Danielius A., Baltuška A., Pugžlys A., Ališauskas S., Pu Z., Kartashov D., Malevich P. N., Marangoni M., Cerullo G.   +10 more
doaj   +1 more source