Results 121 to 130 of about 190,886 (342)

Upconversion Emission Modification and White Light Generation in NaYF ₄:Yb ³⁺, Er ³⁺, Tm ³⁺ Nanocrystals/Opal Photonic Crystal Composites

IEEE Photonics Journal, 2015
In this paper, we fabricated NaYF 4:Yb3+, Er3+, Tm3+ nanocrystal/opal photonic crystal composites by depositing NaYF 4:Yb3+, Er3+, Tm3+ nanocrystals on the surface of opal photonic crystals, and we investigated the influence of photonic bandgaps on ...
Z. W. Yang, Y. D. Wang, J. Y. Liao, J. Z. Yang, J. B. Qiu, Z. G. Song   +5 more
doaj   +1 more source

Exponential suppression of thermal conductance using coherent transport and heterostructures

, 2010
We consider coherent thermal conductance through multilayer photonic crystal heterostructures, consisting of a series of cascaded non-identical photonic crystals.
A. Yariv, C. Kittel, C. L. Tien, E. D. Palik, G. R. Cunnington, J. D. Jackson, Jung-Tsung Shen, Shanhui Fan, Wah Tung Lau   +8 more
core   +1 more source

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

Advanced Functional Materials, EarlyView.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha, Morena Cervino, Hossein Roshan, René Hübner, Angelika Wrzesińska‐Lashkova, Christine Steinbach, Yana Vaynzof, Francesco Di Stasio, Vladimir Lesnyak   +8 more
wiley   +1 more source

Interplay of plasma-induced and fast thermal nonlinearities in a GaAs-based photonic crystal nanocavity

, 2009
We investigate the nonlinear response of GaAs-based photonic crystal cavities at time scales which are much faster than the typical thermal relaxation rate in photonic devices.
Alfredo de Rossi, Chad Husko, M. Bass, Michele Lauritano, Quynh Vy Tran, Sylvain Combrié, Y. Yosia   +6 more
core   +1 more source

Independent Electrical Control of Two Quantum Dots Coupled through a Photonic-Crystal Waveguide

, 2023
Xiao‐Liu Chu, Camille Papon, Nikolai Bart, Andreas D. Wieck, Arne Ludwig, Leonardo Midolo, Nir Rotenberg, Peter Lodahl   +7 more
openalex   +2 more sources

Telecommunication-wavelength two-dimensional photonic crystal cavities\n in a thin single-crystal diamond membrane [PDF]

, 2021
Kazuhiro Kuruma, Afaq Habib Piracha, Dylan Renaud, Cleaven Chia, Neil Sinclair, Athavan Nadarajah, Alastair Stacey, Steven Prawer, Marko Lončar   +8 more
openalex   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

Rapid Prototyping for Nanoparticle-Based Photonic Crystal Fiber Sensors

Sensors
The advent of nanotechnology has motivated a revolution in the development of miniaturized sensors. Such sensors can be used for radiation detection, temperature sensing, radio-frequency sensing, strain sensing, and more.
Michael Sherburne, Cameron Harjes, Benjamin Klitsner, Jonathan Gigax, Sergei Ivanov, Edl Schamiloglu, Jane Lehr   +6 more
doaj   +1 more source

Microsphere Autolithography—A Scalable Approach for Arbitrary Patterning of Dielectric Spheres

Advanced Functional Materials, EarlyView.
MicroSphere Autolithography (µSAL) enables scalable fabrication of patchy particles with customizable surface motifs. Focusing light through dielectric microspheres creates well defined, tunable patches via a conformal poly(dopamine) photoresist. Nearly arbitrary surface patterns can be achieved, with the resolution set by the index contrast between ...
Elliott D. Kunkel, Alec G. Burnett, Katherine E. Scheiber, Hans D. Robinson   +3 more
wiley   +1 more source

Wakefields in photonic crystal cavities

Physical Review Special Topics. Accelerators and Beams, 2009
Simulations of charged particle beams in accelerator cavities show that a two-dimensional photonic crystal can be used to create a three-dimensional hybrid cavity with a single operating mode and no significant higher order modes, greatly reducing long ...
Gregory R. Werner, Carl A. Bauer, John R. Cary   +2 more
doaj   +1 more source