Results 51 to 60 of about 91,943 (294)

Photonic Damascene Process for Integrated High-Q Microresonator Based Nonlinear Photonics

open access: yes, 2015
High confinement, integrated silicon nitride (SiN) waveguides have recently emerged as attractive platform for on-chip nonlinear optical devices. The fabrication of high-Q SiN microresonators with anomalous group velocity dispersion (GVD) has enabled ...
Brasch, Victor   +6 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

The femtosecond laser fabrication of waveguide structures in transparent crystals

open access: yesAPL Photonics
An optical waveguide is the basic structure of quantum optics, which has a strong confinement effect on light. It can complete the low-loss transmission of light and the enhancement of the nonlinear effect.
Zhi-Ming Huo   +10 more
doaj   +1 more source

Computation of ion exchange buried microring resonator waveguide for THz communication applications

open access: yesResults in Physics, 2018
The ion exchange creates the optical buried waveguides, whereas it is the method that the glass doping occurs with the condition of existence of the mobile metal ions.
Iraj S. Amiri   +4 more
doaj   +1 more source

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Hydrogel for light delivery in biomedical applications

open access: yesBioactive Materials
Traditional optical waveguides or mediums are often silica-based materials, but their applications in biomedicine and healthcare are limited due to the poor biocompatibility and unsuitable mechanical properties. In term of the applications in human body,
Pek Yin Michelle Yew   +8 more
doaj   +1 more source

A Semiconductor Under Insulator Technology in Indium Phosphide

open access: yes, 2012
This Letter introduces a Semiconductor-Under-Insulator (SUI) technology in InP for designing strip waveguides that interface InP photonic crystal membrane structures.
Dalacu, Dan   +5 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

Stationary and coherent spectroscopy of 167Er3+ in waveguides in 7LiYF4 crystal

open access: yesEPJ Web of Conferences, 2017
We have conducted a spectroscopic investigation of 167Er3+ ions in optical waveguides on an optical transition between the hyperfine sublevels of 4I15/2 and 4I9/2 multiplets.
Minnegaliev Mansur   +7 more
doaj   +1 more source

STUDY OF THE EFFECT OF ENDFACES POLISHING ANGLE FOR ANISOTROPIC WAVEGUIDES ON STATE CONVERSION OF LIGHT POLARIZATION [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2016
The paper deals with optical scheme for research of polarization state transformation at the junction of anisotropic waveguides. It consists of a light source, polarization controller, multifunctional integrated optical scheme (MIOS), single-mode fiber ...
V. A. Shulepov   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy