Results 31 to 40 of about 5,669 (172)
Advanced Materials, EarlyView.Compact, robust, and ultralow‐loss on‐chip photonic devices are essential for densely integrated photonic chips. Here, the underlying radiation mechanism in topological valley edge states is unveiled and a new methodology of interface topology driven bandgap and wavevector engineering is proposed to thoroughly suppress their radiation losses, thereby ...
Zhonglei Shen +6 more
wiley +1 more source
Dual Resonant Plasmonic Infrared Pixels for Selective Optical Encoding
Advanced Materials Technologies, EarlyView.This study presents dual‐resonant plasmonic nanostructures for advanced optical encoding in the mid‐infrared. By optimizing plasmonic resonances in nano‐antennas within ring cavities, selective and simultaneous tunability in both the MWIR and LWIR regions is achieved.
Goekalp Engin Akinoglu +4 more
wiley +1 more source
Nonlinear properties of high-Q optical microresonators in normal dispersion range
EPJ Web of Conferences, 2017 We demonstrate the generation of Kerr frequency combs and platicons in whispering gallery mode crystalline microresonators in normal group velocity regime at 780 nm and 1064 nm wavelengths.
Shitikov Artem +5 more
doaj +1 more source
Silicon‐Integrated Next‐Generation Plasmonic Devices for Energy‐Efficient Semiconductor Applications
Advanced Materials Technologies, EarlyView.Silicon (Si)‐integrated plasmonics offer a pathway to next‐generation, energy‐efficient semiconductor applications. This review highlights advances using complementary metal–oxide–semiconductor (CMOS)‐compatible materials like transparent conductive oxides and novel architectures, particularly coupled hybrid plasmonic waveguides (CHPWs).
Nasir Alfaraj, Amr S. Helmy
wiley +1 more source
Microlasers Made Entirely from Edible Substances
Advanced Optical Materials, EarlyView.Several types of microlasers made completely out of edible substances are developed. They can be embedded directly into edible products and enable the sensing of various parameters, including sugar concentration, pH, the presence of bacteria, and exposure to too‐high temperatures.
Abdur Rehman Anwar +4 more
wiley +1 more source
Carbonized Polymer Dots‐Based Spectrally Adaptable Photonic Microbarcodes
Advanced Optical Materials, EarlyView.This study explores spectrally tunable photonics barcodes using carbonized polymer dots (CPDs) based on whispering gallery mode (WGM) photoluminescence. CPDs offer wavelength‐dependent emission from visible to near‐infrared (NIR), thereby enabling variable WGM emissions.
Barun Kumar Barman +2 more
wiley +1 more source
Excitation‐Wavelength‐Tunable Lasing in Individual Quantum Dot Superparticles
Advanced Optical Materials, EarlyView.Mesoscale superparticles assembled from CdSe quantum dots are shown to behave as microlasers with emission properties that can be tuned by changing the excitation wavelength. Abstract Microcavities enable precise control over light‐matter interactions, supporting a wide range of applications in photonics and optoelectronics.
Marco Reale +5 more
wiley +1 more source
In-Vivo and Ex-Vivo Measurements of Blood Glucose Using Whispering Gallery Modes
Sensors, 2020 The permittivity of blood glucose is not a strong function of its concentration in microwave or millimeter-wave frequencies. Measuring glucose concentrations remains a challenge, particularly in the presence of interference caused by the ambient leaky ...
Louis W. Y. Liu +8 more
doaj +1 more source
Photo-elasticity of silk fibroin harnessing whispering gallery modes
Scientific Reports, 2023 Silk fibroin is an important biomaterial for photonic devices in wearable systems. The functionality of such devices is inherently influenced by the stimulation from elastic deformations, which are mutually coupled through photo-elasticity.
Nikolaos Korakas +9 more
doaj +1 more source
Non‐Reciprocal Terahertz Topological Sensor on a Silicon Chip
Advanced Optical Materials, EarlyView.A non‐reciprocal terahertz topological sensor (NTTS) is experimentally demonstrated on a silicon valley photonic crystal chip by detecting the thickness and position changes of a polyimide membrane. The sensor exploits detuning between clockwise and counterclockwise topological cavity modes, induced by integrated magneto‐optical InSb, to achieve non ...
Ridong Jia, Ranjan Singh
wiley +1 more source