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In this paper, we report on a singly resonant optical parametric oscillator (OPO) pumped by an amplified spontaneous emission (ASE) source. The pump focusing conditions allow non-collinear phasematching, which resulted in a 230 nm (190 cm(-1)) spectral bandwidth. Calculations indicate that such phasematching schemes may be used to further broaden OPO spectral bandwidths.
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http://dx.doi.org/10.1364/OE.19.021786 | DOI Listing |
J Adv Prosthodont
August 2025
Department of Prosthodontics, Istanbul University, Istanbul, Turkey.
Purpose: This study investigated how different data collection methods affect final restoration design and dynamic occlusal morphology.
Materials And Methods: Digital systems allow intraoral recording of functional occlusal paths through the digitally recorded functionally generated pathway (DRFGP) technique, using intraoral scanners and optical jaw tracking. Two substudies were conducted.
ACS Omega
September 2025
Laboratório de Modelagem Molecular Aplicada e Simulação (LaMMAS), Universidade Estadual de Goiás, Anápolis, GO 75001-970, Brazil.
In this work, we report a theoretical investigation of the third-order nonlinear optical properties of the metronidazolium-picrate salt. The effects of the crystal environment are accounted for by the Iterative Charge Embedding approach, and the electronic calculations are carried out at the DFT (CAM-B3LYP/6-311++G-(d,p)) level. Furthermore, we use the results to parametrize a cavity Quantum Electrodynamics model for a quantum memory based on the Off-Resonant Cascaded Absorption protocol.
View Article and Find Full Text PDFSci Rep
September 2025
Applied Science Research Center, Applied Science Private University, Amman, 11931, Jordan.
This study investigates soliton solutions and dynamic wave structures in the complex Ginzburg-Landau (CGL) equation, which is crucial for understanding wave propagation in various physical systems. We employ three analytical methods: the Kumar-Malik method, the generalized Arnous method, and the energy balance method to derive novel closed-form solutions. These solutions exhibit diverse solitonic phenomena, including multi-wave solitons, complex solitons, singular solitons, periodic oscillating waves, dark-wave, and bright-wave profiles.
View Article and Find Full Text PDFNat Commun
August 2025
State Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.
Capturing multi-dimensional optical information is indispensable in modern optics. However, existing photodetectors can at best detect light fields whose wavelengths or polarizations are predefined at several specific values. Integrating broadband high-dimensional continuous photodetection including intensity, polarization, and wavelength within a single device still poses formidable challenges.
View Article and Find Full Text PDFExp Eye Res
August 2025
Chemistry and Physics of Materials Unit (CPMU), JNCASR, Bangalore, India; Neuroscience Unit (NSU), JNCASR, Bangalore, India. Electronic address:
Retinal waves are spreading, correlated spontaneous bursts of activity, that can be used to track different stages of the developing retina. We used multi-electrode recordings to record from early (E8) to late developmental stages (P0) in the chick retina, allowing us to parametrize the retinal wave activity using burst and wave detection methods. For instance, during the early stages, the waves observed cover a sizable fraction of the recording area.
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