On-chip waveguide resonator with metallic mirrors

2010 ◽  
Vol 35 (4) ◽  
pp. 598 ◽  
Author(s):  
Steve Zamek ◽  
Amit Mizrahi ◽  
Liang Feng ◽  
Aleksandar Simic ◽  
Yeshaiahu Fainman
Keyword(s):  
Waveguide Resonator ◽  
On Chip

scholarly journals Critical couplings in topological-insulator waveguide-resonator systems observed in elastic waves

2020 ◽  
Author(s):  
Si-Yuan Yu ◽  
Cheng He ◽  
Xiao-Chen Sun ◽  
Hong-Fei Wang ◽  
Ji-Qian Wang ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Large Scale ◽  
Spectral Characteristics ◽  
Waveguide Resonator ◽  
Incoming Wave ◽  
Large Scale Integration ◽  
Core Components ◽  
Waveguide Ring ◽  
On Chip ◽  
Scale Integration

Abstract Waveguides and resonators are core components in the large-scale integration of electronics, photonics, and phononics, both in existing and future scenarios. In certain situations, there is critical coupling of the two components; i.e. no energy passes through the waveguide after the incoming wave couples into the resonator. The transmission spectral characteristics resulting from this phenomenon are highly advantageous for signal filtering, switching, multiplexing, and sensing. In the present study, adopting an elastic-wave platform, we introduce topological insulator (TI), a remarkable achievement in condensed matter physics over the past decade, into a classical waveguide-ring-resonator configuration. Along with basic similarities with classical systems, a TI system has important differences and advantages, mostly owing to the spin-momentum locked transmission states at the TI boundaries. As an example, a two-port TI waveguide resonator can fundamentally eliminate upstream reflections while completely retaining useful transmission spectral characteristics, and maximize the energy in the resonator, with possible applications being novel signal processing, gyro/sensing, lasering, energy harvesting, and intense wave–matter interactions, using phonons, photons, or even electrons. The present work further enhances the confidence of using topological protection for practical device performance and functionalities, especially considering the crucial advantage of introducing (pseudo)spins to existing conventional configurations. More in-depth research on advancing phononics/photonics, especially on-chip, is foreseen.

Tuning the coherent interaction in an on-chip photonic-crystal waveguide-resonator system

2010 ◽  
Vol 97 (10) ◽  
pp. 101102 ◽  
Author(s):  
Jun Pan ◽  
Yijie Huo ◽  
Sunil Sandhu ◽  
Norbert Stuhrmann ◽  
Michelle L. Povinelli ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Waveguide ◽  
Waveguide Resonator ◽  
Coherent Interaction ◽  
On Chip ◽  
Resonator System

scholarly journals Sensitive spin detection using an on-chip SQUID-waveguide resonator

2017 ◽  
Vol 111 (20) ◽  
pp. 202601 ◽  
Author(s):  
G. Yue ◽  
L. Chen ◽  
J. Barreda ◽  
V. Bevara ◽  
L. Hu ◽  
...  
Keyword(s):  
Waveguide Resonator ◽  
On Chip ◽  
Spin Detection

Gut microbiome a promising target for management of respiratory diseases

2020 ◽  
Vol 477 (14) ◽  
pp. 2679-2696
Author(s):  
Riddhi Trivedi ◽  
Kalyani Barve
Keyword(s):  
Respiratory Diseases ◽  
New Technology ◽  
Bacterial Flora ◽  
Systemic Circulation ◽  
The Body ◽  
Lung Pathology ◽  
Promising Target ◽  
Current Therapies ◽  
Intestinal Microbial Flora ◽  
On Chip

The intestinal microbial flora has risen to be one of the important etiological factors in the development of diseases like colorectal cancer, obesity, diabetes, inflammatory bowel disease, anxiety and Parkinson's. The emergence of the association between bacterial flora and lungs led to the discovery of the gut–lung axis. Dysbiosis of several species of colonic bacteria such as Firmicutes and Bacteroidetes and transfer of these bacteria from gut to lungs via lymphatic and systemic circulation are associated with several respiratory diseases such as lung cancer, asthma, tuberculosis, cystic fibrosis, etc. Current therapies for dysbiosis include use of probiotics, prebiotics and synbiotics to restore the balance between various species of beneficial bacteria. Various approaches like nanotechnology and microencapsulation have been explored to increase the permeability and viability of probiotics in the body. The need of the day is comprehensive study of mechanisms behind dysbiosis, translocation of microbiota from gut to lung through various channels and new technology for evaluating treatment to correct this dysbiosis which in turn can be used to manage various respiratory diseases. Microfluidics and organ on chip model are emerging technologies that can satisfy these needs. This review gives an overview of colonic commensals in lung pathology and novel systems that help in alleviating symptoms of lung diseases. We have also hypothesized new models to help in understanding bacterial pathways involved in the gut–lung axis as well as act as a futuristic approach in finding treatment of respiratory diseases caused by dysbiosis.

Review of Microfluidic Devices for On-Chip Chemical Sensing

2016 ◽  
Vol 136 (6) ◽  
pp. 244-249
Author(s):  
Takahiro Watanabe ◽  
Fumihiro Sassa ◽  
Yoshitaka Yoshizumi ◽  
Hiroaki Suzuki
Keyword(s):  
Chemical Sensing ◽  
Microfluidic Devices ◽  
On Chip
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