Results 81 to 90 of about 190,146 (342)

Self-trapping and stable localized modes in nonlinear photonic crystals [PDF]

, 2015
We predict the existence of stable nonlinear localized modes near the band edge of a two-dimensional reduced-symmetry photonic crystal with a Kerr nonlinearity.
Kivshar, Yuri, Mingaleev, Sergei
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Finite Element simulation of radiation losses in photonic crystal fibers

, 2007
In our work we focus on the accurate computation of light propagation in finite size photonic crystal structures with the finite element method (FEM).
Burger, Sven, Klose, Roland, Pomplun, Jan, Schmidt, Frank, Zschiedrich, Lin   +4 more
core   +1 more source

Nanoscale quantum dot infrared sensors with photonic crystal cavity [PDF]

, 2006
We report high performance infrared sensors that are based on intersubband transitions in nanoscale self-assembled quantum dots combined with a microcavity resonator made with a high-index-contrast two-dimensional photonic crystal.
Annamalai, S., Crisafulli, O., Krishna, S., Painter, O. J., Perahia, R., Posani, K. T., Tripathi, V., Weisse-Bernstein, N. R.   +7 more
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Parametric downconversion with optimized spectral properties in nonlinear photonic crystals [PDF]

, 2007
We study the joint spectral properties of photon pairs generated by spontaneous parametric down-conversion in a one-dimensional nonlinear photonic crystal in a collinear, degenerate, type-II geometry.
A. B. U’Ren, A. B. U’Ren, A. Yariv, Alfred B. U’Ren, María Corona   +4 more
core   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Semi-analytic method for slow light photonic crystal waveguide design

, 2012
We present a semi-analytic method to calculate the dispersion curves and the group velocity of photonic crystal waveguide modes in two-dimensional geometries.
Auld, Baba, Botten, C. Martijn de Sterke, Caitlin Fisher, Chen, Felix J. Lawrence, Figotin, Frandsen, Gutman, Istrate, Johnson, Khurgin, Knox, Kogelnik, Krauss, Lawrence, Li, Nadav Gutman, Patrick Blown, Sauvan, Schulz, White   +22 more
core   +1 more source

Emergence of Light‐Transforming Layered Hybrid Halide Perovskites

Advanced Functional Materials, EarlyView.
The emerging class of light‐transforming layered halide perovskite materials is reviewed, outlining challenges for their development and perspectives toward application in the future. Abstract Layered hybrid halide perovskites (LHPs) have attracted considerable attention in optoelectronics.
Ghewa AlSabeh, Jovana V. Milić
wiley   +1 more source

Simulation and Experimental Study of a 2D Photonic Crystal Structure that Reflects a Quantum Dots Emission in the Normal Direction

Makara Journal of Science, 2016
Two-dimensional photonic crystal structures not only confine light and guide waves laterally but also reflect light in the normal direction due to a slow Bloch mode effect.
Isnaeni Isnaeni, Yong-Hoon Cho
doaj   +1 more source