Results 61 to 70 of about 10,015 (262)

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

Advanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster, Gianni Jacucci, Ouassef Nahi, Thomas Kress, Zabeada Aslam, Stuart Micklethwaite, Alexander N. Kulak, Rik Drummond‐Brydson, Melinda J. Duer, Yi‐Yeoun Kim, Silvia Vignolini, Fiona C. Meldrum   +11 more
wiley   +1 more source

Método de Diferencias Finitas en el Dominio de las Frecuencias para Cristales Fotónicos 1d y 2d

TecnoLógicas, 2010
In this work we study the electromagnetic modes in one-dimensional and two-dimensional photonic crystals through finite difference frequency domain method.
Juan P. Vasco, Herbert Vinck-Posada
doaj  

Temporal and spectral signatures of the interaction between ultrashort laser pulses and Bloch surface waves

APL Photonics
The resonant excitation of Bloch Surface Waves (BSWs) in dielectric one-dimensional photonic crystals is becoming a realistic photonic solution for surface integration in many domains, from spectroscopy to local field management.
Isaac Doughan, Atsu L. Asilevi, Atri Halder, Tian-Long Guo, Erika Mogni, Michele Celebrano, Marco Finazzi, Giovanni Pellegrini, Paolo Biagioni, Emiliano Descrovi, Matthieu Roussey, Jari Turunen   +11 more
doaj   +1 more source

Thin layer fluorescence microscopy based on one-dimensional photonic crystal

EPJ Web of Conferences, 2018
A new method of specimen illumination for wide-field fluorescence microscopy has been presented. This method allows to excite the fluorescence in a thin near-surface layer of the studied object.
Prusakov Kirill, Basmanov Dmitry, Klinov Dmitry   +2 more
doaj   +1 more source

Research Paper: Reflection of Ultra-Short Light Pulses in Multilayer Dielectric Structures and Micro-resonators by FDTD Method [PDF]

فیزیک کاربردی ایران
In the last two decades, photonic crystals and structures that are based on them (photonic structures) have been examined and have been widely utilized in various optical applications.
Noushin Dadashzadeh
doaj   +1 more source

Velocity‐Tunable Exciton‐Photon Hybridization in Cathodoluminescence

Advanced Functional Materials, EarlyView.
Transition‐radiation resonances in suspended thin crystals hybridise with excitonic transitions under free‐electron excitation. By tuning the electron energy, the photonic resonances are continuously detuned across the exciton states, enabling controllable exciton–photon hybridisation below the diffraction limit without altering the system geometry ...
Sven Ebel, Martin Nørgaard, Christian Nicolaisen Hansen, N. Asger Mortensen, Sergii Morozov   +4 more
wiley   +1 more source

Superlensing properties of one-dimensional dielectric photonic crystals

Optics Express, 2009
9 pages, 9 ...
S. Savo, DI GENNARO, EMILIANO, ANDREONE, ANTONELLO   +2 more
openaire   +4 more sources

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Realization of high-Q/V photonic crystal cavities defined by an effective Aubry-André-Harper bichromatic potential

APL Photonics, 2017
We report on the realization of high-Q/V photonic crystal cavities in thin silicon membranes, with resonances around 1.55 μm wavelength. The cavity designs are based on a recently proposed photonic
A. Simbula, M. Schatzl, L. Zagaglia, F. Alpeggiani, L. C. Andreani, F. Schäffler, T. Fromherz, M. Galli, D. Gerace   +8 more
doaj   +1 more source

Robust Interlayer Exciton Interplay in a Twisted van der Waals Heterotrilayer on a Broadband Bragg Reflector up to Room Temperature

Advanced Functional Materials, EarlyView.
In this work, we highlight a unique material platform capable of producing three distinct room temperature (RT) photoluminescence (PL) resonances from spatially separated regions composed of a heterobilayer (HBL), a homobilayer (HoBL), and an heterotrilayer (HTL) transition metal dichalcogenide (TMD) heterostructures configuration on a highly ...
Bhabani Sankar Sahoo, Shachi Machchhar, Avijit Barua, Martin Podhorský, Seth Ariel Tongay, Takashi Taniguchi, Kenji Watanabe, Chirag Chandrakant Palekar, Stephan Reitzenstein   +8 more
wiley   +1 more source