Kragelundgay5568

In this Erratum the funding and references sections of Opt. Lett.46, 1632 (2021)OPLEDP0146-959210.1364/OL.417851 have been updated.We show that by breaking the symmetry of a beam subjected to tight focusing, namely by obscuring half of it or, equivalently, shifting the beam away from the lens axis, it is possible to obtain novel light properties in the focal spot which, to the best of our knowledge, have not been observed before. For example, a linearly polarized beam half-obstructed or shifted from the axis generates longitudinal and transverse electrical field components, both of which peak on-axis. The ratio of the intensities of these two components can be tuned by changing the shift distance, the size, and the azimuthal location of the displaced incoming beam. Moreover, such symmetry breaking of a linearly polarized beam acts as a catalyst for producing distributions of circular polarization/longitudinal spin angular momentum, as well as orbital angular momentum, in the focal plane. The simple method for generating co-incident longitudinal and transverse components with a controllable ratio may find applications in laser machining, particle manipulation, etc.A novel, to the best of our knowledge, methodology based on the combination of experimental measurements and simulations of the wave transmission through a metasurface at different angles is presented, enabling us to identify the fundamental and first high-order mode of spoof surface plasmon polaritons (SSPPs) excited in the terahertz regime. The approach offers a new way, an alternative to standard near field imaging, to trace out the presence of SSPPs on a metal-dielectric interface.Recently, cesium lead bromide perovskite glass has been recognized as a potential material to fabricate green light emission devices because of their high stability and excellent optical performance. FX11 clinical trial However, the low photoluminescence efficiency and poor color purity ($\lt\! 525\,\,\rm nm$) of $\rm CsPbBr_3$ quantum dot (QD) glass restricts its practical application. In this work, self-crystallization $\rm CsPbBr_3$ QD glasses are successfully prepared via the melt quenching method, and the photoluminescence efficiency increases 10-fold compared with regular thermal treatment $\rm CsPbBr_3$ QD glass without $\rm Ag^+$ doping. The green light-emitting devices based on bulk self-crystallization $\rm CsPbBr_3$ QD glass with 0.4 mol.% $\rm Ag^+$ doping achieves a luminescence efficiency of 20.85 lm/W with a CIE (0.2084, 0.6026) under a 20 mA driving current. The present results provide new, to the best of our knowledge, insight into the application of $\rm CsPbBr_3$ QD glass in the optoelectronic field.Photonic biosensors that use optical resonances to amplify signals from refractive index changes offer high sensitivity, real-time readout, and scalable, low-cost fabrication. However, when used with classic affinity assays, they struggle with noise from nonspecific binding and are limited by the low refractive index and small size of target biological molecules. In this Letter, we evaluate the performance of an integrated microring photonic biosensor using the high contrast cleavage detection (HCCD) mechanism, which we recently introduced. The HCCD sensors make use of dramatic optical signal amplification caused by the cleavage of large numbers of high-contrast nanoparticle reporters instead of the adsorption of labeled or unlabeled low-index biological molecules. We evaluate the advantages of the HCCD detection mechanism over conventional target-capture detection techniques with the same label and the same sensor platform, using an example of a silicon ring resonator as an optical transducer decorated with silicon nanoparticles as high-contrast reporters. In the practical realization of this detection scheme, detection specificity and signal amplification can be achieved via collateral nucleic acid cleavage caused by enzymes such as CRISPR Cas12a and Cas13 after binding to a target DNA/RNA sequence in solution.Dynamically tunable and reconfigurable topological states are realized in higher-order topological insulators with the liquid crystal (LC). By changing the loading voltage of the LC, the eigenfrequency of the edge and corner states can be tuned, but even more important is that the edge state and corner state with the same frequency are realized. Based on this reconfigurability of topological states, optical routers and lasers with multiple topological states can be realized. Our results may be applied to topological optical circuits and provide new ideas for optical field localization and manipulation.We introduce a matrix-based approach for characterization of local interactions of optical beams with devices that result in changes of their orbital angular momentum (OAM) content. For deterministic interactions, a method similar to the Jones calculus is developed, while for interactions involving random beams and/or devices, its generalization based on the coherence-OAM matrix is suggested. Applications of the new, to the best of our knowledge, calculus to a spiral plate, a trigonometric grating, and a diffuser are considered. An alternative formulation similar to the Stokes-Mueller calculus is also outlined.We present the theory of parametrically resonant surface plasmon polaritons (SPPs). We show that a temporal modulation of the dielectric properties of the medium adjacent to a metallic surface can lead to efficient energy injection into the SPP modes supported at the interface. When the permittivity modulation is induced by a pump field exceeding a certain threshold intensity, such a field undergoes a reverse saturable absorption process. We introduce a time-domain formalism to account for pump saturation and depletion effects. Finally, we discuss the viability of these effects for optical limiting applications.We report on a normal-incidence infrared photoconductor based on surface-state absorption in silicon, featuring broad-spectrum photoresponse, sensitivity of $-46\;\rm dBm $ enabled by lock-in readouts, CMOS-compatible fabrication process, and near transparency to incident light. Its applications in infrared imaging and measuring the beam profiles are demonstrated and presented. Future extension from this single-pixel element to a many-pixel camera is discussed.