Results 61 to 70 of about 5,269,631 (254)

Two-Stage System Based on a Software-Defined Radio for Stabilizing of Optical Frequency Combs in Long-Term Experiments

Sensors, 2014
A passive optical resonator is a special sensor used for measurement of lengths on the nanometer and sub-nanometer scale. A stabilized optical frequency comb can provide an ultimate reference for measuring the wavelength of a tunable laser locked to the
Martin Čížek, Václav Hucl, Jan Hrabina, Radek Šmíd, Břetislav Mikel, Josef Lazar, Ondřej Číp   +6 more
doaj   +1 more source

Visible-to-mid-IR tunable frequency comb in nanophotonics

Nature Communications, 2023
Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequency combs has mostly been centered around the near-infrared spectral region,
Arkadev Roy, Luis Ledezma, Luis Costa, Robert Gray, Ryoto Sekine, Qiushi Guo, Mingchen Liu, Ryan M. Briggs, Alireza Marandi   +8 more
doaj   +1 more source

Ultralow Noise and Timing Jitter Semiconductor Quantum-Dot Passively Mode-Locked Laser for Terabit/s Optical Networks

Photonics, 2022
Diode optical frequency comb lasers are promising compact solutions to generate high-speed optical pulses for applications in high spectral efficiency wavelength division multiplexing transmission with advanced modulation formats.
Youxin Mao, Guocheng Liu, Khan Zeb, Zhenguo Lu, Jiaren Liu, Philip J. Poole, Chun-Ying Song, Pedro Barrios   +7 more
doaj   +1 more source

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

Advanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith, Kaitlyn Clancy, Siwen Xie, Xiaochen Li, Sarah Khalife, Benjamin van der Woerd, Onaizah Onaizah   +6 more
wiley   +1 more source

Entanglement generation with integrated optical frequency comb sources

, 2017
We show that integrated optical frequency comb sources, based on on-chip microring resonators, can be used as versatile sources of two- and multi-photon entangled states when operated well below their optical parametric oscillation threshold.
Brent E. Little, Sai T. Chu, Benjamin Wetzel, Piotr Roztocki, David J. Moss, Caspani, Lucia, Bromberg, Yaron, Little, Brent E., Roberto Morandotti, Reimer, Christian, Christian Reimer, Wetzel, Benjamin, Morandotti, Roberto, Yaron Bromberg, Chu, Sai T., Michael Kues, Lucia Caspani, Roztocki, Piotr, Moss, David J., Kues, Michael, Moss, David   +20 more
core   +1 more source

Friend, Not Foe: Lowered Tissue Reactivity to Long‐Term Polyimide Implants

Advanced Science, EarlyView.
The choice of optimal neural probe designs remains a major challenge in the field of neurotechnology. This study investigated the biocompatibility of several probe variations, including material, thickness, width, and implantation strategy. It highlights the clear advantage of soft polyimide probes over stiff silicon probes for better device ...
Corinne Orlemann, Laura M. De Santis, Paul Neering, Christian Boehler, Kirti Sharma, Arno Aarts, Tobias Holzhammer, Rik J. J. van Daal, Patrick Ruther, Maria Asplund, Roxana N. Kooijmans, Pieter R. Roelfsema   +11 more
wiley   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Ultra-Dense CEO-Stabilized Broadband Optical Frequency Comb Generation Through Simple, Programmable, and Lossless 1000-Fold Frequency-Spacing Division

IEEE Photonics Journal, 2019
Ultra-dense broadband optical frequency combs with sub-MHz frequency spacing and stabilized carrier-envelope offset (CEO) are needed for many important applications, including high-accuracy real-time sub-Doppler spectroscopy, precise characterization of ...
Xiao-Zhou Li, Mohamed Seghilani, Reza Maram, Luis Romero Cortes, Jose Azana   +4 more
doaj   +1 more source

Mechanical overtone frequency combs

Nature Communications, 2023
The authors combined optical traps and frequency combs to create new acoustic technology – a mechanical frequency comb. The generation of this comb does not require any precision control, making it uniquely positioned for sensing, metrology, and quantum ...
Matthijs H. J. de Jong, Adarsh Ganesan, Andrea Cupertino, Simon Gröblacher, Richard A. Norte   +4 more
doaj   +1 more source

Oral Nanomicelle‐Mediated Sequential Butyrate Production in the Intestine for Ulcerative Colitis and Immunosuppression Treatment

Advanced Science, EarlyView.
After oral administration, inodorous GLU‐BA self‐assembles into nanomicelles in aqueous environments to resist premature gastric adsorption. Upon reaching the intestine, endogenous esterases rapidly cleave the built‐in ester bonds in these nanomicelles to release BA and GLU, with GLU further metabolized by gut microbiota to gradually generate BA ...
Feifei Xin, Zhike Xie, Danyue Zhao, Lin Yang, Yiqun Wan, Zuwei Liu, Situ Xiong, Ying Zhang, Lei Feng, Hao Wan   +9 more
wiley   +1 more source