Results 21 to 30 of about 91,028 (245)

Nonlinear Excitations in Ultracold Atoms Trapped in Triple Optical Lattices

Condensed Matter, 2022
Various solitary wave excitations are found for a Bose-Einstein condensate in presence of two hybrid potentials in the form of triple mixtures of optical lattices. One of these potentials comprises of a combination of two important lattice profiles, such
Pradosh Basu, Barun Halder, Sriganapathy Raghav, Utpal Roy   +3 more
doaj   +1 more source

A Simulation Study of the Dynamical Control of Optical Skyrmion Lattices through the Superposition of Optical Vortex Beams

Photonics, 2023
Optical skyrmion lattices play an important role in photonic system design and have potential applications in optical transmission and storage. In this study, we propose a novel metasurface approach to calculating the dependence of the multi-beam ...
Gao Tang, Chunyan Bai, Tianchen Tang, Jiansheng Peng, Songlin Zhuang, Dawei Zhang   +5 more
doaj   +1 more source

Fractionalized topological defects in optical lattices

New Journal of Physics, 2015
Topological objects are interesting topics in various fields of physics ranging from condensed matter physics to the grand unified and superstring theories. Among those, ultracold atoms provide a playground to study the complex topological objects.
Xing-Hai Zhang, Wen-Jun Fan, Jin-Wei Shi, Su-Peng Kou   +3 more
doaj   +1 more source

Nonlinear optics and light localization in periodic photonic lattices

, 2007
We review the recent developments in the field of photonic lattices emphasizing their unique properties for controlling linear and nonlinear propagation of light.
Ablowitz M. J., ANDREY A. SUKHORUKOV, Bartal G., Bartal G., Bartal G., Brzdakiewicz K. A., Buljan H., Christodoulides D. N., Cohen O., DRAGOMIR N. NESHEV, Efremidis N. K., Efremidis N. K., Fischer R., Fleischer J. W., Fratalocchi A., Fratalocchi A., Gersen H., Hadzievski L., Iwanow R., Joannopoulos J. D., Kartashov Y. V., Kartashov Y. V., Kartashov Y. V., Kartashov Y. V., Kartashov Y. V., Kivshar Yu. S., Mandelik D., Mandelik D., Mandelik D., Meier J., Neshev D., Pertsch T., Rosberg C. R., Sukhorukov A. A., Sukhorukov A. A., Suntsov S., Vicencio R. A., WIESLAW KROLIKOWSKI, Yariv A., Yeh P., YURI S. KIVSHAR   +40 more
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Collective Electronic Excitation Coupling between Planar Optical Lattices using Ewald's Method

, 2011
Using Ewald's summation method we investigate collective electronic excitations (excitons) of ultracold atoms in parallel planar optical lattices including long range interactions.
Agranovich V M, Born M, Davydov S, Hashem Zoubi, Helmut Ritsch, Lahaye T, Muller S Billy J Henn E A Kadau H Griesmaier A Jona-Lainio M Santos L Pfau T, Zoubi H, Zoubi H   +8 more
core   +1 more source

State-recycling and time-resolved imaging in topological photonic lattices [PDF]

, 2018
Photonic lattices - arrays of optical waveguides - are powerful platforms for simulating a range of phenomena, including topological phases. While probing dynamics is possible in these systems, by reinterpreting the propagation direction as "time ...
Chandrasekharan, Harikumar K., Goldman, Nathan, Mukherjee, Sebabrata, Thomson, Robert R., Öhberg, Patrik   +4 more
core   +3 more sources

Optical Lattices: Theory

, 2007
This chapter presents an overview of the properties of a Bose-Einstein condensate (BEC) trapped in a periodic potential. This system has attracted a wide interest in the last years, and a few excellent reviews of the field have already appeared in the ...
A Smerzi, A Smerzi, A Smerzi, A Trombettoni, A Trombettoni, AJ Leggett, B Damski, B Eiermann, B Wu, B Wu, B Wu, BM Breid, BP Anderson, C Menotti, C Orzel, CJ Pethick, D Ananikian, D Boers, D Choi, D Clément, D Hennig, D Jaksch, E Taylor, E Zaremba, EA Ostrovskaja, F Dalfovo, FKh. Abdullaev, FS Cataliotti, FS Cataliotti, GJ Milburn, GL Alfimov, GM Kavoulakis, I Bloch, J Javanainen, JE Lye, K Berg-Sorensen, K Bongs, L Fallani, L Fallani, L Salasnich, LP Pitaevskii, M Albiez, M Cristiani, M Greiner, M Greiner, M Jona-Lasinio, M Krämer, M Krämer, M Krämer, M Machholm, M Machholm, MJ Ablowitz, ML Chiofalo, MPA Fisher, MR Andrews, O Morsch, O Morsch, P Pedri, PG Kevrekidis, R Roth, S Ianeselli, S Raghavan, S Stringari, T Anker, T Schulte, T Schumm, T Stoferle, VV Konotop, WK Hensinger, Y Shin, Yu.S Kivshar, Z Hadzibabic, Z Rapti   +72 more
core   +1 more source

Optical Flux Lattices for Ultracold Atomic Gases

, 2011
We show that simple laser configurations can give rise to "optical flux lattices", in which optically dressed atoms experience a periodic effective magnetic flux with high mean density.
Cooper, N. R.
core   +1 more source

Observation of exceptional points in reconfigurable non-Hermitian vector-field holographic lattices

Nature Communications, 2016
Non-Hermitian Hamiltonians have attracted significant attention because of the unconventional wave-dynamic effects they allow. Here, Hahn et al. report reconfigurable non-Hermitian photonic lattices that permit versatile control of real and imaginary sub-
Choloong Hahn, Youngsun Choi, Jae Woong Yoon, Seok Ho Song, Cha Hwan Oh, Pierre Berini   +5 more
doaj   +1 more source

Formation controllable two-dimensional surface optical lattices

Journal of Taibah University for Science, 2023
The evanescent light field created by total internal reflection at a dielectric-vacuum interface has tight spatial confinement and high local intensity.
S. Al-Awfi
doaj   +1 more source