Results 21 to 30 of about 61,179 (219)

500-W Average Power, 100-mJ level Pulse Energy by Q-switched 7x7 Multicore Fiber Lasers [PDF]

EPJ Web of Conferences
This work focuses on achieving high peak and average power through incoherent beam combination of Q-switched 49-core fiber laser. Results show 1.5-MW peak power, and 502-W average power between 1-10 kHz.
Bahri Mehran, Jauregui Cesar, Klenke Arno, Lenski Mathias, Khalil Yahia, Nold Johannes, Haarlammert Nicoletta, Schreiber Thomas, Limpert Jens   +8 more
doaj   +1 more source

Effects of Laser Plasma Formation on Quasi-Phase Matching of High-Order Harmonics from Nanoparticles and Atoms

Nanomaterials, 2019
The application of nanoparticles (NPs) and quasi-phase matching (QPM) each play an important role in the enhancement of high-order harmonics (HHG) of ultrashort laser pulses.
Rashid A. Ganeev, Ganjaboy S. Boltaev, Vyacheslav V. Kim, Chunlei Guo   +3 more
doaj   +1 more source

From 3D to 2D and back again

Nanophotonics, 2023
The prospect of massive parallelism of optics enabling fast and low energy cost operations is attracting interest for novel photonic circuits where 3-dimensional (3D) implementations have a high potential for scalability.
Dinc Niyazi Ulas, Saba Amirhossein, Madrid-Wolff Jorge, Gigli Carlo, Boniface Antoine, Moser Christophe, Psaltis Demetri   +6 more
doaj   +1 more source

Phase-shift mask fabrication at micrometric scale by ion-exchange in glass for astronomical wavefront sensors [PDF]

EPJ Web of Conferences, 2020
Photolithography combined with ion-exchange in glass is a well-known technology that can be applied to develop many different optical devices. In this work, we present the complete procedure to generate small circular phase-shift masks with diameters of ...
Prieto-Blanco Xesús, Montero-Orille Carlos, González-Núñez Héctor, Moreno Vicente, Cagigal Manuel P., Liñares Jesús   +5 more
doaj   +1 more source

Editorial for the Special Issue “Interdisciplinary Approaches and Applications of Optics & Photonics”

Applied Sciences
The remarkable development of pure and applied research in the fields of optics and photonics in the past few decades has reinforced the need to position optics among the major fields of science that are considered to have remarkable, multi-fold impacts ...
Manuel F. M. Costa, Sandra Franco
doaj   +1 more source

Solderjet bumping packaging technique optimization for the miniaturization of laser devices

Journal of the European Optical Society-Rapid Publications, 2017
Background Low-stress soldering techniques can guarantee a minimized input of thermal energy allowing for the design and later assembly of more robust and miniaturized optical devices.
P. Ribes-Pleguezuelo, B. Septriani, S. Zhang, E. Beckert, R. Eberhardt, F. Wyrowski, A. Tünnermann   +6 more
doaj   +1 more source

Angularly selective thermal emitters for deep subfreezing daytime radiative cooling

Nanophotonics, 2022
We theoretically analyze the impact of angular selectivity on the radiative cooling performance of thermal emitters. We investigate the effect of spectral selectivity, environmental conditions, and parasitic heating on the minimum possible equilibrium ...
Chamoli Sandeep Kumar, Li Wei, Guo Chunlei, ElKabbash Mohamed   +3 more
doaj   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source