Results 81 to 90 of about 11,983 (293)

Coherent beam combining of 60 femtosecond fiber amplifiers

, 2020
International audienceWe report on the first coherent beam combining of 60 fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique.
Durand, Eric, Larat, Christian, Bellanger, Séverine, Veinhard, Matthieu, Fsaifes, Ihsan, Brignon, Arnaud, Lallier, Eric, Chanteloup, Jean-Christophe, Bourderionnet, Jérôme, Daniault, Louis   +9 more
core  

Study on Phase and Tip-tilt Control Using Adaptive SPGD Algorithm for Coherent Beam Combining [PDF]

한국정밀공학회지
Coherent Beam Combining (CBC) is a promising technique for enhancing laser output power by accurately aligning the phase and position of multiple laser beams.
Hyeong Min Yoon, Sangmin Lee, Jae Woo Jung, Kang Hee Lee, Jae Heon Jung, Chang Hwan Kim, Byunghyuck Moon, Eunji Park, Ki Hyuck Kim, Seongmook Jeong, Jun Young Yoon   +10 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

Advanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou, James FitzPatrick, Li Meng, Kateryna Shevchuk, Ahmad Najafi, Yury Gogotsi   +5 more
wiley   +1 more source

Free space optical communication based on a multi-wavelength optical phased array using Fresnel reflection

Applied Physics Express
We report a coherent laser transmitter for free space optical communications based on multiwavelength coherent beam combining. We performed 5.6 Gbps free-space optical communications using a two-element optical phased array with three wavelengths ...
Eisuke Haraguchi, Hitomi Ono, Takahiro Suzuki, Tomohiro Akiyama, Akihiro Fujie, Yuta Takemoto, Toshiyuki Ando   +6 more
doaj   +1 more source

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

Advanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett, Shahad K. Alsaiari, John L. Daristotle, Timothy A. Forster, Alicia Lau, Dhruv Varshney, Rania Afaneh, Andrew R. Hanna, Charles Sloane, David Mankus, Haitao Yu, Jiali Zhai, DongSoo Yun, Lisa H. Tostanoski, Abigail Lytton‐Jean, Dan H. Barouch, Charlotte E. Conn, Robert Langer, Ana Jaklenec, Calum J. Drummond   +19 more
wiley   +1 more source

Controlled Generation of Orbital Angular Momentum Beams With Coherent Beam Combining Digital Laser and Liquid-Crystal q-Plate

IEEE Photonics Journal
We report on versatile orbital angular momentum beam generation through the association of a 61-channels coherent beam combining digital laser and a liquid-crystal q-plate.
Corentin Lechevalier, Claude-Alban Ranely-Verge-Depre, Ihsan Fsaifes, Rezki Becheker, Gerben Boer, Jean-Christophe Chanteloup   +5 more
doaj   +1 more source

Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs

Advanced Functional Materials, EarlyView.
Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric, Gohar Soufi, Ziqiao Li, Erick Chica, Amran Abdirasheed Ali Jinow, Nada Al‐Roubaï, Noor Ahmed, Yaman Göksel, Anja Boisen   +8 more
wiley   +1 more source

Recent progress of coherent beam combining Kumgang Laser (0.4J@10kHz/10ns) [PDF]

, 2016
A coherent beam combining is the most promising technique to achieve a high output energy and a high repetition rate laser system with a good beam quality [1].
Kim, Jom Sool, Churn, Kilsung, Kong, Hong Jin, Lee, Hwihyeong, Lee, Bong Ju, Cha, Seongwoo, Park, Sangwoo, Oh, Jungsuk, Choi, Soungwoong   +8 more
core  

Efficient Coherent Beam Combining of Fiber Lasers Using Multiplexed Volume Bragg Gratings

, 2012
Highly efficient, stable, and scalable passive coherent beam combining of fiber lasers using multiplexed volume Bragg gratings is presented. We report combining efficiency of \u3e90% for two channels and demonstrate channel scalability to four channels. ©
Christine Spiegelberg, Spiegelberg, Christine, Smirnov, Vadim, Bochove, Erik, Jain, Apurva, Erik Bochove, Leonid Glebov, Vadim Smirnov, Apurva Jain, Glebov, Leonid   +9 more
core   +1 more source