Micro-opto-electro-mechanical devices and on-chip optical processing

1997 ◽  
Vol 36 (5) ◽  
pp. 1282 ◽  
Author(s):  
M. Edward Motamedi
Keyword(s):  
Optical Processing ◽  
On Chip ◽  
Mechanical Devices

scholarly journals Plasmon-induced transparency effect for ultracompact on-chip devices

Nanophotonics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 1125-1149 ◽  
Author(s):  
Xinxiang Niu ◽  
Xiaoyong Hu ◽  
Qiuchen Yan ◽  
Jiankun Zhu ◽  
Haotian Cheng ◽  
...  
Keyword(s):  
Light Propagation ◽  
Optical Processing ◽  
Ultrafast Optical ◽  
Performance Indexes ◽  
Integrated Optical ◽  
Development Direction ◽  
Improved Performance ◽  
On Chip ◽  
Induced Transparency ◽  
Plasmon Induced Transparency

AbstractOn-chip plasmon-induced transparency (PIT) possessing the unique properties of controlling light propagation states is a promising way to on-chip ultrafast optical connection networks as well as integrated optical processing chips. On-chip PIT has attracted enormous research interests, the latest developments of which have also yield progress in nanophotonics, material science, nonlinear optics, and so on. This review summarizes the realization methods, novel configurations, diversiform materials, and the improved performance indexes. Finally, a brief outlook on the remaining challenges and possible development direction in the pursuit of the application of a practical on-chip photonic processor based on PIT is also afforded.

On-chip All-optical Processing Based on Photonic Crystal Nanocavities

2008 ◽  
Author(s):  
M. Notomi ◽  
A. Shinya ◽  
T. Tanabe ◽  
E. Kuramochi ◽  
H. Taniyama ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Processing ◽  
All Optical ◽  
On Chip

scholarly journals AI-assisted on-chip nanophotonic convolver based on silicon metasurface

Nanophotonics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 3315-3322 ◽  
Author(s):  
Kun Liao ◽  
Tianyi Gan ◽  
Xiaoyong Hu ◽  
Qihuang Gong
Keyword(s):  
Optical Computing ◽  
Processing System ◽  
Characteristic Size ◽  
Optical Signal ◽  
Mathematical Operation ◽  
Optical Processing ◽  
Convolution Operation ◽  
All Optical ◽  
On Chip ◽  
Further Development

AbstractConvolution operation is of great significance in on-chip all-optical signal processing, especially in signal analysis and image processing. It is a basic and important mathematical operation in the realization of all-optical computing. Here, we propose and experimentally implement a dispersionless metalens for dual wavelengths, a 4f optical processing system, and then demonstrate the on-chip nanophotonic convolver based on silicon metasurface with the optimization assistance of inverse design. The characteristic size of the dispersionless metalens device is 8 × 9.4 μm, and the focusing efficiency is up to 79% and 85% at wavelengths of 1000 and 1550 nm, respectively. The feature size of the convolver is 24 × 9.4 μm, and the proposed convolver allows spatial convolution operation on any desired function at dual wavelengths simultaneously. This work provides a potential scheme for the further development of on-chip all-optical computing.

scholarly journals On-chip nanophotonics and future challenges

Nanophotonics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 3733-3753 ◽  
Author(s):  
Alina Karabchevsky ◽  
Aviad Katiyi ◽  
Angeleene S. Ang ◽  
Adir Hazan
Keyword(s):  
Optical Waveguides ◽  
High Performance ◽  
Logic Gates ◽  
Building Blocks ◽  
Optical Systems ◽  
Optical Processing ◽  
Nanophotonic Devices ◽  
All Optical ◽  
Future Challenges ◽  
On Chip

AbstractOn-chip nanophotonic devices are a class of devices capable of controlling light on a chip to realize performance advantages over ordinary building blocks of integrated photonics. These ultra-fast and low-power nanoscale optoelectronic devices are aimed at high-performance computing, chemical, and biological sensing technologies, energy-efficient lighting, environmental monitoring and more. They are increasingly becoming an attractive building block in a variety of systems, which is attributed to their unique features of large evanescent field, compactness, and most importantly their ability to be configured according to the required application. This review summarizes recent advances of integrated nanophotonic devices and their demonstrated applications, including but not limited to, mid-infrared and overtone spectroscopy, all-optical processing on a chip, logic gates on a chip, and cryptography on a chip. The reviewed devices open up a new chapter in on-chip nanophotonics and enable the application of optical waveguides in a variety of optical systems, thus are aimed at accelerating the transition of nanophotonics from academia to the industry.

On-chip dispersive phase filters for optical processing of periodic signals

2020 ◽  
Vol 45 (16) ◽  
pp. 4603 ◽  
Author(s):  
Saket Kaushal ◽  
José Azaña
Keyword(s):  
Optical Processing ◽  
Periodic Signals ◽  
On Chip ◽  
Dispersive Phase

On-chip optical processing

1996 ◽  
Author(s):  
M. Edward Motamedi ◽  
Ming C. Wu ◽  
Kristofer S. J. Pister
Keyword(s):  
Optical Processing ◽  
On Chip

The Theoretical Contrast in Scanning and Conventional High Resolution Microscopes

1969 ◽  
Vol 27 ◽  
pp. 170-171
Author(s):  
E. Zeitler ◽  
M. G. R. Thomson
Keyword(s):  
Small Volume ◽  
Volume Element ◽  
Optical Processing ◽  
Image Construction ◽  
Object Interaction ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Optical Treatment ◽  
Electron Microscopes ◽  
Intensity Contrast

In the formation of an image each small volume element of the object is correlated to an areal element in the image. The structure or detail of the object is represented by changes in intensity from element to element, and this variation of intensity (contrast) is determined by the interaction of the electrons with the specimen, and by the optical processing of the information-carrying electrons. Both conventional and scanning transmission electron microscopes form images which may be considered in this way, but the mechanism of image construction is very different in the two cases. Although the electron-object interaction is the same, the optical treatment differs.

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.

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