Results 111 to 120 of about 1,418,125 (307)

White Light Generation From YAG:Ce‐Doped Phosphate Glass‐Based Composite Fibers

Advanced Optical Materials, EarlyView.
The first white‐light‐emitting composite fiber based on YAG:Ce3+ phosphors in phosphate glass is developed. The glass composition is custom‐engineered to enhance thermal stability and to match YAG:Ce3+ refractive index, ensuring composite transparency.
Khaldoon Nasser, Hùng Nguyên Trân, Arjun Vakkada Ramachandran, Mikko Närhi, Turkka Salminen, Catherine Boussard‐Plédel, Johann Troles, Tian‐Long Guo, Matthieu Roussey, Laeticia Petit   +9 more
wiley   +1 more source

Quantum state magnification

, 2016
Quantum metrology exploits entangled states of particles to improve sensing precision beyond the limit achievable with uncorrelated particles. All previous methods required detection noise levels below this standard quantum limit to realize the benefits ...
Engelsen, N. J., Hosten, O., Kasevich, M. A., Krishnakumar, R.   +3 more
core   +1 more source

Reconfigurable controlled two-qubit operation on a quantum photonic chip [PDF]

, 2011
Integrated quantum photonics is an appealing platform for quantum information processing, quantum communication and quantum metrology. In all these applications it is necessary not only to be able to create and detect Fock states of light but also to ...
Laing, A., Li, H. W., Lobino, M., Matthews, J. C. F., Niskanen, A. O., O'Brien, J. L., Politi, A., Przeslak, S., Shadbolt, P., Thompson, M. G.   +9 more
core   +2 more sources

Mechanistic Origin of Photodegradation and Impurity Effects in Donor–Acceptor Luminescent Radicals

Advanced Optical Materials, EarlyView.
Purification‐dependent impurities distort the apparent optical and analytical data of TTM‐based radicals without altering their intrinsic photophysical properties. Carbazole attachment elevates the activation barrier of the photodegradation pathway, offering design principles for achieving more robust luminescent radical materials.
Takuya Hosokai, Wataru Ota, Kenshiro Matsuda, Hikaru Ishii, Amane Niwa, Yasuo Nakayama, Keisuke Nakamura, Daiki Asakawa, Emiko Fujiwara, Tohru Sato, Ken Albrecht   +10 more
wiley   +1 more source

Cryptographic quantum metrology [PDF]

Physical Review A, 2019
We develop a general framework for parameter estimation that allows only trusted parties to access the result and achieves optimal precision. The protocols are designed such that adversaries can access some information indeterministically, but only at the risk of getting caught (cheat-sensitivity); under the assumption that the adversary can access the
HUANG, ZIXIN, Macchiavello, Chiara, Maccone, Lorenzo   +2 more
openaire   +3 more sources

Nanophotonic Strategies for Chiral Biosensing: Nanoparticles, Metasurfaces, Magneto‐Optical, and Quantum Approaches

Advanced Photonics Research, EarlyView.
Recent advances in nanophotonics‐based chiral biosensing approaches are comprehensively reviewed, highlighting key trends, advantages, and limitations of each technology. Special attention is given to emerging strategies that exploit magneto‐optical and quantum plasmonic phenomena to enhance sensitivity down to the level of a few molecules, or even a ...
Jorge Ricardo Mejía‐Salazar
wiley   +1 more source

Interaction-based quantum metrology showing scaling beyond the Heisenberg limit

, 2010
Quantum metrology studies the use of entanglement and other quantum resources to improve precision measurement. An interferometer using N independent particles to measure a parameter X can achieve at best the "standard quantum limit" (SQL) of sensitivity
A Negretti, B. Dubost, BA Chase, D Budker, F Wolfgramm, H Lee, I Kominis, J Beltrán, K Hammerer, M Fleischhauer, M Koschorreck, M Koschorreck, M Kubasik, M Napolitano, M. Koschorreck, M. Napolitano, M. W. Mitchell, MJ Woolley, MO Scully, MW Mitchell, N. Behbood, R. J. Sewell, S Boixo, S Boixo, S Boixo, S Choi, SM Roy, V Giovannetti, VB Braginskii, W Wasilewski   +29 more
core   +1 more source

Quantum metrology and its application in biology [PDF]

, 2015
Quantum metrology provides a route to overcome practical limits in sensing devices. It holds particular relevance to biology, where sensitivity and resolution constraints restrict applications both in fundamental biophysics and in medicine.
Bowen, Warwick P., Taylor, Michael A.
core   +1 more source

Cascaded multiparameter quantum metrology

Physical Review A
We present an innovative, platform-independent concept for multiparameter sensing where the measurable parameters are in series, or cascaded, enabling measurements as a function of position. With temporally resolved detection, we show that squeezing can give a quantum enhancement in sensitivity over that of classical states by a factor of $e^{2r ...
Gregory Krueper, Lior Cohen, Juliet T. Gopinath   +2 more
openaire   +2 more sources

Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites

Advanced Science, EarlyView.
Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev, Nobumoto Nagasawa, Hongxin Wang, Vladimir Pomjakushin, Martin Kunz, Yoshitaka Yoda, Stephen P. Cramer, Qianli Chen, Artur Braun   +8 more
wiley   +1 more source