Results 231 to 240 of about 2,362,388 (352)

Quantum Emitters in Rhombohedral Boron Nitride

open access: yesAdvanced Optical Materials, EarlyView.
Rhombohedral boron nitride (rBN) is an emerging wide‐bandgap van der Waals (vdW) material with strong second‐order nonlinear optical properties. In this work, optically‐addressable spin defects and single‐photon emitters (SPEs) are fabricated deterministically in rBN.
Angus Gale   +10 more
wiley   +1 more source

C2LI: Enhancing Structural Color Sensing and Imaging via Complementary Color Laser Illumination

open access: yesAdvanced Optical Materials, EarlyView.
This article introduces complementary color laser illumination (C2LI) and demonstrates it to be an effective approach for engaging the visual system to enhance perceptual sensitivity and chromatic contrast. This enhances a human user's ability to detect subtle differences in sample or medium characteristics, enabling novel applications in colorimetric ...
Tomoshree Dash   +3 more
wiley   +1 more source

Anisotropy of Second‐Harmonic Generation in SnSe Flakes with Ferroelectric Stacking

open access: yesAdvanced Photonics Research, EarlyView.
Giant second‐harmonic generation (SHG) susceptibility, on the order of 1000 pm V−1, in SnSe with ferroelectric stacking is demonstrated by theoretical and experimental methods. SHG microscopy is utilized to study few‐layer ferroelectric SnSe flakes on mica substrates. Stripe‐like features in SHG mapping indicate ferroelectric domains. Strong wavelength‐
Li‐Tien Huang   +9 more
wiley   +1 more source

Proving Optical Anisotropy and Polarization Effects in β‐Ga2O3$\left(\text{Ga}\right)_{2} \left(\text{O}\right)_{3}$ Nanomembranes via X‐Ray Excited Optical Luminescence

open access: yesAdvanced Photonics Research, EarlyView.
In this study, the pronounced anisotropy in the optical properties of β‐Ga2O3 nanomembranes has been analized under a synchrotron nanoprobe. We have investigated the site‐specific contributions of distint Ga ions to the emission bands by combining polarization‐dependent X‐ray absorption near‐edge structure and X‐ray excited luminescence.
Paula Pérez‐Peinado   +12 more
wiley   +1 more source

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