Results 61 to 70 of about 166,743 (295)

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

High Average Power Nonlinear Pulse Compression in a Gas-filled Multi-pass Cell at 2 μm Wavelength [PDF]

EPJ Web of Conferences, 2022
Gierschke P., Grebing C., Abdelaa M., Lenski M., Buldt J., Wang Z., Heuermann T., Müller M., Gebhardt M., Rothhardt J., Limpert J.   +10 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

Regular Nanowire Formation on Fe-Based Metal Glass by Manipulation of Surface Waves

Nanomaterials, 2021
We report the formation of a sole long nanowire structure and the regular nanowire arrays inside a groove on the surface of Fe-based metallic glass upon irradiation of two temporally delayed femtosecond lasers with the identical linear polarization ...
Zhen Zhao, Chaoqun Xia, Jianjun Yang
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Accelerated nonlinear interactions in graded-index multimode fibers

Nature Communications, 2019
Multimode optical fibers can be used to observe complex intermodal processes like optical solitons. Here, Eftekhar et al. study accelerated nonlinear interaction in multimode fibers with a tapered core diameter and its effect on the temporal and spectral
M. A. Eftekhar, Z. Sanjabi-Eznaveh, H. E. Lopez-Aviles, S. Benis, J. E. Antonio-Lopez, M. Kolesik, F. Wise, R. Amezcua-Correa, D. N. Christodoulides   +8 more
doaj   +1 more source

Nonlinear polarization holography of nanoscale iridium films

New Journal of Physics, 2023
Attosecond nonlinear polarization spectroscopy designates the subcycle-precise retrieval of the electric field of a femtosecond laser pulse together with the nonlinear polarization response that the laser pulse triggers in a sample.
Mouli Hazra, Pallabi Paul, Doyeong Kim, Christin David, Stefanie Gräfe, Ulf Peschel, Matthias Kübel, Adriana Szeghalmi, Adrian N Pfeiffer   +8 more
doaj   +1 more source

Principles of Neuromorphic Photonics

, 2017
In an age overrun with information, the ability to process reams of data has become crucial. The demand for data will continue to grow as smart gadgets multiply and become increasingly integrated into our daily lives.
de Lima, Thomas Ferreira, Nahmias, Mitchell A., Peng, Hsuan-Tung, Prucnal, Paul R., Shastri, Bhavin J., Tait, Alexander N.   +5 more
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Optical anisotropy of black phosphorus by total internal reflection

Nano Materials Science, 2019
Although abundant research on the anisotropy of van der Waals (vdW) materials has been published, we undertake an in-depth study of their optical properties as they have an important guiding role for light control in two-dimensional (2D) nanospace. As an
Wei Xin, Hao Bo Jiang, Teng Qian Sun, Xiao Guang Gao, Shao Nan Chen, Bo Zhao, Jian Jun Yang, Zhi Bo Liu, Jian Guo Tian, Chun Lei Guo   +9 more
doaj   +1 more source