Results 71 to 80 of about 948,414 (276)

Thermo-optic switches using vertically coupled polymer/silica waveguides

, 2022
S.101-102Thermo-optic switches using vertically coupled polymer/silica waveguides have been realised This concept combines the advantages of ultra-low loss silica waveguides and low power consumption polymer thermo-optic switches extending the optical ...
Keil, N., Wirges, W., Losch, K., Weinert, C., Zawadzki, C., Schneider, J., Wirth, J. von, Bauer, M., Satzke, K., Wischmann, W., Yao, H.H., Bauer, J.   +11 more
core  

Waveguides for neurostimulation in the cochlea

Frontiers in Audiology and Otology
IntroductionOptical stimulation has been suggested for neural stimulation to improve cochlear implants. Light allows for more spatially selective activation of neuron populations than electrical current, offering more independent frequency bands along ...
Matthew Kim, Joaquin Cury, Lexie Kessler, Michael Triplett, Sarah Sahota, Komal Kampasi, Xiaodong Tan, Razi-ul Haque, Claus-Peter Richter, Claus-Peter Richter, Claus-Peter Richter, Claus-Peter Richter   +11 more
doaj   +1 more source

Advances on Polymer Optical Fiber Gratings Using a KrF Pulsed Laser System Operating at 248 nm

Fibers, 2018
This paper presents the achievements and progress made on the polymer optical fiber (POF) gratings inscription in different types of Fiber Bragg Gratings (FBGs) and long period gratings (LPGs). Since the first demonstration of POFBGs in 1999, significant
Carlos A. F. Marques, Arnaldo G. Leal-Junior, Rui Min, Maria Domingues, Cátia Leitão, Paulo Antunes, Beatriz Ortega, Paulo André   +7 more
doaj   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

THz Waveguides, Devices and Hybrid Polymer-chalcogenidePhotonic Crystal Fibers [PDF]

, 2014
In this contribution, we review our recent activities in the design, fabrication and characterization of polymer THz waveguides. Besides the THz waveguides, we Ønally will also brie∞y show some of our initial results on a novel hybrid polymer photonic ...
Markos, Christos, Rasmussen, Henrik K., Nielsen, Kristian, Jepsen, Peter Uhd, Bao, Hualong, Bang, Ole   +5 more
core  

Optical 8-channel, 10 Gb/s MT pluggable connector alignment technology for precision coupling of laser and photodiode arrays to polymer waveguide arrays for optical board-to-board interconnects [PDF]

, 2008
The paper introduces a low cost, precision alignment technique designed to be unaffected by temperature or process variations in the thickness of the PCB FR4 board, the thickness of the lower cladding between the PCB board and the waveguide core, the ...
Selviah, D.R., Milward, D., Hopkins, K., Papakonstantinou, I., David R. Selviah, Wang, K., Pitwon, R.A., Ken Hopkins, Richard A. Pitwon, Dave Milward, Ioannis Papakonstantinou, Anibal Fernández, F., Kai Wang   +12 more
core   +1 more source

Electro-Absorption Optical Modulator Based on Graphene-Buried Polymer Waveguides

IEEE Photonics Journal, 2020
By exploiting the electro-absorption characteristic of graphene, we proposed and theoretically demonstrated an electro-absorption optical modulator (EOM) based on the graphene-buried polymer waveguides.
Tianhang Lian, Kaidi Yang, Xibin Wang, Minghui Jiang, Shijie Sun, Donghai Niu, Daming Zhang   +6 more
doaj   +1 more source

Recent Advances in Transparent Microelectrode Device Architecture and Fabrication Strategies for Biomedical Applications

Advanced Materials Technologies, EarlyView.
Transparent microelectrode arrays enable simultaneous optical and electrical electrophysiology with high spatiotemporal resolution, allowing multimodal observations of dynamic biological systems. Advances in materials and device architectures improve device performance by addressing key trade‐offs between optical transparency, impedance, and ...
Michael Abraham Listyawan, Tran Bach Dang, Chi Cong Nguyen, Yee Lap Pong, Tianruo Guo, Thanh Nho Do, Hoang‐Phuong Phan   +6 more
wiley   +1 more source

Bioabsorbable polymer optical waveguides for deep-tissue photomedicine

Nature Communications, 2016
Light-based therapies are of growing importance in medicine, though penetrating tissue and reaching the targeted area can be difficult. Here, the authors report the use of biodegradable waveguides capable of directing light where desired, and demonstrate
Sedat Nizamoglu, Malte C. Gather, Matjaž Humar, Myunghwan Choi, Seonghoon Kim, Ki Su Kim, Sei Kwang Hahn, Giuliano Scarcelli, Mark Randolph, Robert W. Redmond, Seok Hyun Yun   +10 more
doaj   +1 more source

Modeling of Slot Waveguide Sensors Based on Polymeric Materials

Sensors, 2011
Slot waveguides are very promising for optical sensing applications because of their peculiar spatial mode profile. In this paper we have carried out a detailed analysis of mode confinement properties in slot waveguides realized in very low refractive ...
Lorenzo Pavesi, Vittorio M. N. Passaro, Francesco De Leonardis, Eveline Rigo, Paolo Bettotti, Alessandro Pitanti   +5 more
doaj   +1 more source