Results 71 to 80 of about 9,972 (221)

Nanostratification of optical excitation in self-interacting 1D arrays

, 2009
The major assumption of the Lorentz-Lorenz theory about uniformity of local fields and atomic polarization in dense material does not hold in finite groups of atoms, as we reported earlier [A. E. Kaplan and S. N. Volkov, Phys. Rev. Lett., v. 101, 133902 (
A. Aharoni, A. E. Kaplan, A. E. Kaplan, A. E. Kaplan, A. K. Sarychev, A. Yariv, C. Kittel, H. M. Gibbs, J. J. Stoker, J. R. Heath, J. R. Long, J. Van Kranendonk, L. D. Landau, M. Born, M. C. Tringides, S. N. Volkov, V. B. Sandomirskii, V. S. Butylkin, V. S. Butylkin   +18 more
core   +1 more source

Photochromic Diarylethene‐doped SU‐8 for Rewritable Optics and Integrated Photonic Switching

Advanced Optical Materials, EarlyView.
A CMOS‐compatible photochromic host–guest material platform is realized by incorporating diarylethene molecules into SU‐8 photoresist. Reversible photoisomerization enables light‐programmable optical absorption, allowing rewritable optical patterning and port‐selective attenuation in integrated waveguides.
Yao Chang, Hsiu‐Hui Chen, Chun‐Ta Wang   +2 more
wiley   +1 more source

Spin Crossover and Magnetic-Dielectric Bistability Induced by Hidden Pseudo-Jahn–Teller Effect

Magnetochemistry, 2020
In a semi-review paper, we show that the hidden Jahn–Teller effect (JTE) and pseudo-JTE (PJTE) in molecular systems and solids, under certain conditions lead to the formation of two coexisting stable space configurations with different magnetic and ...
Isaac B. Bersuker
doaj   +1 more source

Thickness-dependent spin bistable transitions in single-crystalline molecular 2D material

npj 2D Materials and Applications, 2022
The advent of two-dimensional (2D) crystals has led to numerous scientific breakthroughs. Conventional 2D systems have in-plane covalent bonds and a weak out-of-plane van-der-Waals bond.
John Koptur-Palenchar, Miguel Gakiya-Teruya, Duy Le, Jun Jiang, Rui Zhang, Xuanyuan Jiang, Hai-Ping Cheng, Talat S. Rahman, Michael Shatruk, Xiao-Xiao Zhang   +9 more
doaj   +1 more source

Dissipative solitons in pattern-forming nonlinear optical systems : cavity solitons and feedback solitons [PDF]

, 2005
Many dissipative optical systems support patterns. Dissipative solitons are generally found where a pattern coexists with a stable unpatterned state. We consider such phenomena in driven optical cavities containing a nonlinear medium (cavity solitons ...
Ackemann, Thorsten, Firth, William
core  

Dynamic optical bistability in resonantly enhanced Raman generation

, 2004
We report observations of novel dynamic behavior in resonantly-enhanced stimulated Raman scattering in Rb vapor. In particular, we demonstrate a dynamic hysteresis of the Raman scattered optical field in response to changes of the drive laser field ...
A. André, A. S. Zibrov, A. S. Zibrov, D. F. Phillips, I. Novikova, L. A. Lugiato, M. D. Lukin, M. O. Scully, R. L. Walsworth   +8 more
core   +1 more source

Dual‐Functional Ingestible Passive Capsules for High‐Throughput Intestinal Sampling with Sealed Containment and Targeted Drug Delivery

Advanced Robotics Research, EarlyView.
To address challenges in high‐throughput intestinal sampling with sealed containment and target drug delivery, we developed a dual‐functional ingestible passive capsule with a dual‐triggered control system based on pH‐response and mechanical actuation.
Libing Huang, Houyu Ling, Xizong Chen, Yufei Duan, Yu Liu, Shuntian Cai, Yandan Ren, Wenlong Li, Lei Ren, Miao Wang   +9 more
wiley   +1 more source

Quantum droplets with magnetic vortices in spinor dipolar Bose-Einstein condensates

Physical Review Research
Motivated by the recent experimental realization of a Bose-Einstein condensate (BEC) of europium atoms, we investigate the self-bound droplet state for a dipolar BEC with spin degrees of freedom.
Shaoxiong Li, Hiroki Saito
doaj   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

Mirror structures above and below the linear instability threshold: Cluster observations, fluid model and hybrid simulations [PDF]

Annales Geophysicae, 2009
Using 5 years of Cluster data, we present a detailed statistical analysis of magnetic fluctuations associated with mirror structures in the magnetosheath.
V. Génot, E. Budnik, P. Hellinger, T. Passot, G. Belmont, P. M. Trávníček, P.-L. Sulem, E. Lucek, I. Dandouras   +8 more
doaj   +1 more source