Results 51 to 60 of about 165,132 (302)

High-Order Harmonic Generation in Au Nanoparticle-Contained Plasmas

Nanomaterials, 2020
Gold nanoparticles (NPs) have a wide range of applications in various fields. Here, we present high-order nonlinear optical studies of the plasmas produced from ablation of Au bulk targets and Au NP films deposited on paper and glass substrates ...
Mottamchetty Venkatesh, Rashid A. Ganeev, Dmitry S. Ivanov, Ganjaboy S. Boltaev, Vyacheslav V. Kim, Jingguang Liang, Andrey A. Samokhvalov, Andrei V. Kabashin, Sergey M. Klimentov, Martin E. Garcia, Chunlei Guo   +10 more
doaj   +1 more source

Two octaves spanning photoacoustic microscopy

Scientific Reports, 2022
In this study, for the first time, a Photoacoustic Microscopy instrument driven by a single optical source operating over a wide spectral range (475–2400 nm), covering slightly more than two octaves is demonstrated. Xenopus laevis tadpoles were imaged in
Gianni Nteroli, Manoj K. Dasa, Giulia Messa, Stella Koutsikou, Magalie Bondu, Peter M. Moselund, Christos Markos, Ole Bang, Adrian Podoleanu, Adrian Bradu   +9 more
doaj   +1 more source

Probing the loss origins of ultra-smooth $\mathrm{Si_3N_4}$ integrated photonic waveguides

, 2018
On-chip optical waveguides with low propagation losses and precisely engineered group velocity dispersion (GVD) are important to nonlinear photonic devices such as soliton microcombs. Yet, despite intensive research efforts, nonlinear integrated photonic
Ghadiani, Bahareh, Kippenberg, Tobias J., Liu, Junqiu, Morais, Tiago, Pfeiffer, Martin H. P., Raja, Arslan S.   +5 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

NEMS-based optical phase modulator fabricated on silicon-on-insulator [PDF]

, 2011
We present a compact low-power optical phase modulator on Silicon-On-Insulator consisting of an under-etched slot waveguide.
Baets, Roel, Claes, Tom, Roels, Joris, Van Acoleyen, Karel, Van Thourhout, Dries   +4 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Silicon optical modulators [PDF]

, 2010
Optical technology is poised to revolutionise short reach interconnects. The leading candidate technology is silicon photonics, and the workhorse of such interconnect is the optical modulator.
Gardes, F.Y., Mashanovich, G., Reed, G.T., Thomson, David   +3 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water

Nanomaterials, 2019
We analyzed the formation of the aluminum (Al) nanoparticles (NPs) with triangular shape obtained by ablating Al bulk in liquid using pulses with different durations (5 ns, 200 ps, and 30 fs) and wavelengths (355 nm, 800 nm, and 1064 nm). We report three
Ke Zhang, Dmitry S. Ivanov, Rashid A. Ganeev, Ganjaboy S. Boltaev, Pandiyalackal S. Krishnendu, Subhash C. Singh, Martin E. Garcia, Irina N. Zavestovskaya, Chunlei Guo   +8 more
doaj   +1 more source

High-purity single photons obtained with moderate-NA optics from SiV center in nanodiamonds on a bullseye antenna

New Journal of Physics, 2021
Coherent exchange of single photons is at the heart of applied quantum optics. The negatively-charged silicon vacancy center in diamond is among most promising sources for coherent single photons.
Richard Waltrich, Boaz Lubotzky, Hamza Abudayyeh, Elena S Steiger, Konstantin G Fehler, Niklas Lettner, Valery A Davydov, Viatcheslav N Agafonov, Ronen Rapaport, Alexander Kubanek   +9 more
doaj   +1 more source