Results 251 to 260 of about 9,950,957 (390)

Synthesis of Novel BINOL Analogs: 3,3′‐Dicarbonyl‐1,1′‐binaphthyl‐4,4′‐diols as Precursors to the Uncharted 5,5′‐Binaphtho[2,1‐d]isoxazole

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 45, December 10, 2025.
The parent 5,5′‐binaphtho[2,1‐d]isoxazole and its 3,3′‐dimethyl and 3,3′‐diphenyl derivatives are synthesized via condensation of the respective dicarbonyl compounds with hydroxylamine, followed by cyclodehydration of the resulting dioximes. The dicarbonyl precursors are obtained through 4‐ or 6‐step sequences from 1‐naphthol or 1‐naphthaldehyde ...
Marek Surowiec   +6 more
wiley   +1 more source

Hypersonic Vehicle Thrust Sensitivity to Angle of Attack and Mach Number

open access: green, 2010
Sean Torrez   +4 more
openalex   +1 more source

Distribution of Mach number along the centerline of the nozzle: Comparison between current simulation results and experimental data from Liu [17].

open access: green
Xiao Mo (2430355)   +4 more
openalex   +1 more source

Generalized Heterodyne Interferometry in Kerr Materials

open access: yesAdvanced Photonics Research, Volume 6, Issue 12, December 2025.
Interferometry, combined with heterodyne detection, enables simultaneous measurement of light amplitude and phase. This work applies these methods to study nonlinear phase shifts from the optical Kerr effect during laser pulse propagation. Results show the nonlinear index is straightforward to retrieve at low phases, but at higher powers, pulse shape ...
Arnaud Rogemont   +3 more
wiley   +1 more source

Nonvolatile and Low‐Loss Reconfigurable Optical Switches Using Sb2S3 Phase Change Material

open access: yesAdvanced Photonics Research, Volume 6, Issue 12, December 2025.
Sb2S3‐assisted hybrid plasmonic waveguide‐based reconfigurable, nonvolatile 1 × 2 switch using an asymmetric directional coupler is presented. Its dual‐polarization functionality ensures its broader applicability and flexibility in integrated photonic systems where polarization diversity is often required.
Nisadur Rahman, Hasan Khaled Rouf
wiley   +1 more source

Numerical and Experimental Methods for Estimating the Propagation Loss in Microphotonic Waveguides

open access: yesAdvanced Photonics Research, Volume 6, Issue 12, December 2025.
Finite‐element finite‐difference time domain, eigenmode‐expansion, and volume‐current simulations are benchmarked against cut‐back, ring‐resonator, and OFDR measurements to quantify waveguide propagation loss in integrated photonic circuits. Scattering, absorption, leakage, and back‐reflection contributions are dissected; error sources are ranked; and ...
Francesco Dell’Olio   +4 more
wiley   +1 more source

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