Results 121 to 130 of about 8,418,870 (292)

An ultra-compact deterministic source of maximally entangled photon pairs

APL Photonics
We demonstrate an ultra-compact source of on-demand, maximally entangled photon pairs using single GaAs quantum dots embedded in monolithic microlenses coupled to a lensed single-mode fiber.
M. Langer, P. Ruchka, A. Rahimi, S. Jakovljevic, Y. G. Zena, S. A. Dhurjati, A. Danilov, M. Pal, R. Bassoli, F. H. P. Fitzek, O. G. Schmidt, H. Giessen, C. Hopfmann   +12 more
doaj   +1 more source

Modal Analysis of Light Propagation, Polarization and Diffraction by Cholesteric Liquid Crystal Layers

Advanced Functional Materials, EarlyView.
The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu, Pouya Nosratkhah, Le Zhou, Shengzhu Yi, Giorgio Manzoni, Kristiaan Neyts   +5 more
wiley   +1 more source

Thermoresponsive Liquid Crystalline Polymer Coatings Programmed by Field‐Induced Topological Defects for Tunable Optical and Topographical Responses

Advanced Functional Materials, EarlyView.
Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto, Mufeeduzaman Chavilkkadan, Alexander Fusi, Marko Beslać, Dirk J. Broer, Etienne Brasselet, Danqing Liu   +6 more
wiley   +1 more source

Purcell-Enhanced Single Photon Source Based on a Deterministically Placed WSe₂ Monolayer Quantum Dot in a Circular Bragg Grating Cavity. [PDF]

Nano Lett, 2021
Iff O, Buchinger Q, Moczała-Dusanowska M, Kamp M, Betzold S, Davanco M, Srinivasan K, Tongay S, Antón-Solanas C, Höfling S, Schneider C.   +10 more
europepmc   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

Advanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani, Paulius Imbrasas, Jan‐Michael Mewes, Felix Kaden, Stephanie Anna Buchholtz, Karl Leo, Sebastian Schellhammer, Carsten Rothe, Sebastian Reineke   +8 more
wiley   +1 more source

SPAD array detectors for parallel photon timing applications [PDF]

, 2009
Over the past few years there has been a growing interest in monolithic arrays of single photon avalanche diodes (SPAD) for spatially resolved detection of faint ultrafast optical signals.
P. Maccagnani, GULINATTI, ANGELO, RECH, IVAN, COVA, SERGIO, GHIONI, MASSIMO ANTONIO, CAMMI, CORRADO   +5 more
core  

Poster session: Fifth users meeting for the Advanced Photon Source

, 1992
The Advanced Photon Source (APS), which is currently under construction as a national user facility at Argonne National Laboratory is a third-generation synchrotron x-ray source, one of only three in the world.
Argonne National Laboratory
core   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam, Gerald R. Bejger, Waseem A. Wani, Kristina M. Holsgrove, Andrew N. Titus, Niyorjyoti Sharma, Shihao Wang, Keithen Orson, Megan K. Lenox, Liron Shvilberg, Yong Kyu Choi, Ian A. Brummel, Benjamin L. Aronson, Petra Reinke, Quentin Ramasse, Amit Kumar, Brian J. Rodriguez, Christina M. Rost, Jon F. Ihlefeld   +18 more
wiley   +1 more source

Single-Photon Source with Asymmetric Multiplexed Architecture

, 2013
The asymmetric configuration of multiplexed heralded single photon sources is introduced and shown to outperform the faint laser source. This design points out the potential use for integrated implementation of high performance single photon ...
VALLONE, GIUSEPPE, Luca Mazzarella, Francesco Ticozzi, Giuseppe Vallone, Alexander V. Sergienko, Paolo Villoresi, MAZZARELLA, LUCA, TICOZZI, FRANCESCO, VILLORESI, PAOLO   +8 more
core   +1 more source

Cavity Enhancement of Single Quantum Dot Emission in the Blue

Nanoscale Research Letters, 2009
Cavity-enhanced single-photon emission in the blue spectral region was measured from single InGaN/GaN quantum dots. The low-Q microcavities used were characterized using micro-reflectance spectroscopy where the source was the enhanced blue output from a ...
Oliver Rachel, Kappers Menno, Humphreys Colin, Taylor Robert, Jarjour Anas, Collins Daniel, Holmes Mark   +6 more
doaj   +1 more source