Results 191 to 200 of about 4,797 (280)

Geometric phase amplification in a clock interferometer for enhanced metrology. [PDF]

Sci Adv
Zhou Z, Carrasco SC, Sanner C, Malinovsky VS, Folman R.   +4 more
europepmc   +1 more source

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

Combining semiparametric and machine learning approaches for short-term prediction of satellite clock bias. [PDF]

Sci Rep
Jin L, Zhao W, Pan X, Ai Q, Cai M, Ruan X.   +5 more
europepmc   +1 more source

Optical‐to‐Microcomb Stability Transfer for Ultrastable Timing and Microwave/Millimeter‐Wave Generation

Laser &Photonics Reviews, EarlyView.
This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn, Junyong Choi, Daewon Suk, Hansuek Lee, Jungwon Kim   +4 more
wiley   +1 more source

Optical clocks at sea. [PDF]

Nature
Roslund JD, Cingöz A, Lunden WD, Partridge GB, Kowligy AS, Roller F, Sheredy DB, Skulason GE, Song JP, Abo-Shaeer JR, Boyd MM.   +10 more
europepmc   +1 more source

Metathesis‐Sourced Epoxides in Ring‐Opening Copolymerization: Selective Access to Degradable Polythioesters

Macromolecular Rapid Communications, EarlyView.
Metathesis‐derived cyclopentene epoxides enable strictly alternating, scrambling‐free ring‐opening copolymerization with phthalic thioanhydride, yielding well‐defined polythioesters with molecular weights up to ∼38 kg/mol. Their performance extends to oxygen‐based anhydrides and selective terpolymerizations. Direct comparisons with all‐oxygen analogues
Niracha Tangyen, Bhargav R. Manjunatha, Valerio D'Elia, Alex J. Plajer   +3 more
wiley   +1 more source

Modulation of the Stress Granule Component Carhsp1 Mitigates Disease‐Associated Deficits in Spinocerebellar Ataxia Type 3 Mouse Models

Movement Disorders, EarlyView.
Abstract Background Spinocerebellar ataxia type 3 (SCA3) is a polyglutamine (polyQ) neurogenerative disorder that results from CAG trinucleotide repeat expansions in the ATXN3 gene, leading to toxic protein aggregate formation and cellular pathway dysfunction.
Tiago Moreira‐Gomes, Adriana Marcelo, Ana Teresa Rajado, Rafael G. Costa, Ricardo Afonso‐Reis, Cristiana R. Madeira, Inês T. Afonso, David V.C. Brito, Adriana A. Vaz, Clévio Nóbrega   +9 more
wiley   +1 more source

Polarization Decoupling Multi-Port Beam-Splitting Metasurface for Miniaturized Magneto-Optical Trap. [PDF]

Adv Sci (Weinh)
Tian T, Qing C, Liao Y, Zhu J, Li Y, Feng X, Zhang D, Huang Y.   +7 more
europepmc   +1 more source

Advances and Current Progress of Dopant Engineering on All‐Inorganic Halide Perovskites Toward High‐Performance Scintillating Materials

MetalMat, EarlyView.
This review provides the latest advancement on lead‐free all‐inorganic perovskites, covering fundamental aspects, emerging synthetic routes, and scintillation properties. We highlight the dopant engineering strategy to favor the formation and efficient radiative recombination of self‐trapped excitons and the future development direction for the next ...
Galfin Anderias Adu, Viona Maria Djojo, Livia Janice Widiapradja, Noor Nisa Fayyaza, Lina Jaya Diguna, Muhammad Danang Birowosuto, Arramel Arramel   +6 more
wiley   +1 more source

A unified theory of tunneling times promoted by Ramsey clocks. [PDF]

Sci Adv
Schach P, Giese E.
europepmc   +1 more source