Results 31 to 40 of about 1,361 (200)
Advances in inorganic and hybrid perovskites for miniaturized lasers
Nanophotonics, 2020 The rapid advancement of perovskite-based optoelectronics devices has caught the world’s attention due to their outstanding properties, such as long carrier lifetime, low defect trap density, large absorption coefficient, narrow linewidth and high ...
Liu Zhengzheng +4 more
doaj +1 more source
Photonics, 2021 Optical frequency combs (OFCs) generated in microresonators with whispering gallery modes are demanded for different applications including telecommunications.
Elena A. Anashkina +8 more
doaj +1 more source
A Microring Resonator Based Negative Permeability Metamaterial Sensor
Sensors, 2011 Metamaterials are artificial multifunctional materials that acquire their material properties from their structure, rather than inheriting them directly from the materials they are composed of, and they may provide novel tools to significantly enhance ...
Yao-Zhong Lan +4 more
doaj +1 more source
Sensors, 2022 In this work, the design of an integrated 183GHz radiometer frontend for earth observation applications on satellites is presented. By means of the efficient electro-optic modulation of a laser pump with the observed millimeter-wave signal followed by ...
Kerlos Atia Abdalmalak +5 more
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Results in Physics, 2020 We present the first detailed theoretical analysis of multi-color continuous wave lasing in Tm-doped tellurite spherical microresonators with whispering gallery modes pumped at a wavelength of 792 nm.
E.A. Anashkina +2 more
doaj
Experimental evidence of quadrupolar whispering-gallery modes in phononic crystal based waveguides
AIP Advances, 2019 Understanding the performance of resonators introduced in elastic and/or acoustic circuits is important for conceiving complex and efficient guiding structures.
Jinfeng Zhao +6 more
doaj +1 more source
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
IEEE Photonics Journal, 2019 This work aims at the establishment of a rigorous full-wave eigenmode analysis technique based on a finite element scheme for the study of terahertz (THz) or photonic/optical unbounded structures.
Konstantinos D. Paschaloudis +7 more
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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
Travelling-wave whispering gallery resonance sensor in millimetre-wave range
Electronics Letters, 2008 A high sensitivity sensor with a simple structure is presented for analysis of (bio)chemicals in liquid or solution form. The proposed technique is based on the travelling-wave whispering gallery resonance perturbation method in the millimetre-wave range. The resonance modes are launched inside a dielectric disk through coupling into a dielectric image
Mohammad Neshat +3 more
openaire +2 more sources