Results 91 to 100 of about 3,969,324 (281)

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

Advanced Optical Materials, EarlyView.
Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata, Ryuichiro Asatani, Saiki Suzuki, Md Abdullah Al Masud, Hotaka Sakaguchi, Jun Okabayashi, Shinji Isogami, Takayuki Ishibashi   +7 more
wiley   +1 more source

Femtosecond laser structuring of Flexdym elastomeric polymer for surface properties modifications [PDF]

EPJ Web of Conferences
While microfluidics still relies heavily on polydimethylsiloxane (PDMS) as a benchmark material, alternative elastomers such as Flexdym are attracting increasing interest due to their processing versatility and potential for fast device fabrication.
Radziunas-Salinas Yago, Gómez-Varela Ana Isabel, Bao-Varela Carmen, Flores-Arias María Teresa   +3 more
doaj   +1 more source

An Examination of the Cs2NaInCl6 Luminescence: Interplay of Self‐Generated In+ and Doped Sb3+, Er3+/Yb3+ Ions

Advanced Optical Materials, EarlyView.
A new luminescence mechanism in Cs2NaInCl₆ is revealed through spontaneously formed In3+→In+ centers and Er3+/Yb3+/Sb3+ doping. Tunable visible, near‐infrared, downconversion, and upconversion emissions are demonstrated, while DFT calculations explain the electronic structure.
Inna A. Ivashchenko, Alicja Szymska‐Szymanik, Lubomir D. Gulay, Alexander Eich, Galina Gurieva, Susan Schorr, Karina V. Lamonova, Marcin Nyk, Malgorzata Makowska‐Janusik, Benjamin González‐Diaze, Katarzyna Matras‐Postołek   +10 more
wiley   +1 more source

Three-dimensional femtosecond laser processing for lab-on-a-chip applications

Nanophotonics, 2018
The extremely high peak intensity associated with ultrashort pulse width of femtosecond laser allows us to induce nonlinear interaction such as multiphoton absorption and tunneling ionization with materials that are transparent to the laser wavelength ...
Sima Felix, Sugioka Koji, Vázquez Rebeca Martínez, Osellame Roberto, Kelemen Lóránd, Ormos Pal   +5 more
doaj   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Femtosecond optoinjection of intact tobacco BY-2 cells using a reconfigurable photoporation platform [PDF]

, 2013
A tightly-focused ultrashort pulsed laser beam incident upon a cell membrane has previously been shown to transiently increase cell membrane permeability while maintaining the viability of the cell, a technique known as photoporation.
Torrance Lesley, Gunn-Moore Frank J., Tomás Cizmár, Alison G. Roberts (484836), Lesley Torrance, Roberts Alison G., Lesley Torrance (315753), Heisterkamp, Alexander, Claire A. Mitchell, Gunn-Moore, Frank J., Torrance, Lesley, Dholakia, Kishan, Frank J Gunn-Moore, Dholakia, K., Kishan Dholakia, Gunn-Moore, F.J., Cizmár, T., Alison G. Roberts, Cizmar, Tomas, Stefan Kalies (388164), Heisterkamp Alexander, Heisterkamp, A., Dholakia Kishan, Er Heisterkamp, Kalies Stefan, Kalies, Stefan, Roberts, Alison G., Stefan Kalies, Cizmár Tomás, Mitchell, C.A., Alison G Roberts, Roberts, A.G., Kalies, S., Tomás Cizmár (484835), Claire A Mitchell, Kishan Dholakia (426528), Torrance, L., Alexander Heisterkamp (150235), Frank J. Gunn-moore, Claire A. Mitchell (484834), Frank J. Gunn-Moore (400582), Alexander Heisterkamp, Mitchell, Claire A., Mitchell Claire A.   +43 more
core   +2 more sources

Fabrication of highly homogeneous and controllable nanogratings on silicon via chemical etching-assisted femtosecond laser modification

Nanophotonics, 2019
Femtosecond laser direct writing is widely exploited in surface periodic structures processing. However, this technique still faces challenges in obtaining high surface homogeneity and flexible morphology controllability.
Huang Ji, Jiang Lan, Li Xiaowei, Wang Andong, Wang Zhi, Wang Qingsong, Hu Jie, Qu Liangti, Cui Tianhong, Lu Yongfeng   +9 more
doaj   +1 more source

Microstructuring of electrospun mats employing femtosecond laser

Medžiagotyra, 2015
Electrospun mats from nano/micro-fibers with control porosity and pore shape may be ideal candidate for tissue engineering scaffolds. In this study three type of poly(vinyl alcohol) (PVA) mats of 48-65 µm thickness with different nano/micro-fibers ...
Erika Adomavičiūtė, Tomas TAMULEVIČIUS, Linas ŠIMATONIS, Eglė FATARAITĖ-URBONIENĖ, Edgaras STANKEVIČIUS, Sigitas TAMULEVIČIUS   +5 more
doaj   +1 more source

Real 3D microsphere lasers by femtosecond laser processing

RSC Advances, 2017
Real 3D microspheres are fabricated using femtosecond laser processing and might be applicable for use as single-mode microlasers with controlled resonance wavelengths.
Zhi-Shan Hou, Qiu-Lan Huang, Xue-Peng Zhan, Ai-Wu Li, Huai-Liang Xu   +4 more
openaire   +2 more sources

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +4 more
wiley   +1 more source