Results 81 to 90 of about 118,225 (289)

Cross‐Modal Denoising and Integration of Spatial Multi‐Omics Data with CANDIES

Advanced Science, EarlyView.
In this paper, we introduce CANDIES, which leverages a conditional diffusion model and contrastive learning to effectively denoise and integrate spatial multi‐omics data. We conduct extensive evaluations on diverse synthetic and real datasets, CANDIES shows superior performance on various downstream tasks, including denoising, spatial domain ...
Ye Liu, Wanpeng Zou, Yuekai Li, Jiayi Wang, Mingxuan Cai, Hongmin Cai   +5 more
wiley   +1 more source

Magnetostrictive mechanical frequency combs

Nature Communications
Magnetostriction plays a pivotal role in magneto-mechanical systems. Here, we propose and experimentally demonstrate a mechanical frequency comb solely requiring the fundamental mode f0 of a magnetostrictive mm-scale macroresonator. Both integer-harmonic combs and half-integer-harmonic combs are observed in kHz regime with Hz resolution by near ...
Guanqi Ye, Ruitong Sun, Junning Zhao, Fusheng Ma   +3 more
openaire   +2 more sources

Resonant electro-optic frequency comb [PDF]

Nature, 2019
High speed optical telecommunication is enabled by wavelength division multiplexing, whereby hundreds of individually stabilized lasers encode the information within a single mode optical fiber. In the seek for larger bandwidth the optical power sent into the fiber is limited by optical non-linearities within the fiber and energy consumption of the ...
Rueda, A., Sedlmeir, F., Kumari, M., Leuchs, G., Schwefel, H.   +4 more
openaire   +4 more sources

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

Terahertz quantum cascade laser frequency combs with engineered operation frequency around 4.0 THz

AIP Advances
Freely engineering the operation frequency of frequency comb sources is crucial for various applications, e.g., high-precision spectroscopy, ranging, communications, and so on. Here, by employing band structure simulations, group velocity dispersion (GVD)
Shumin Wu, Kang Zhou, Ziping Li, Xuhong Ma, Chenjie Wang, Binbin Liu, Wenjian Wan, Zhenzhen Zhang, Hua Li   +8 more
doaj   +1 more source

Reconfigurable Spoof Plasmonic Skyrmion Electronics for Deformation‐Invariant Multimode Sensing

Advanced Science, EarlyView.
A flexible multimode sensor based on capacitively loaded spoof plasmonic skyrmions enables deformation‐invariant dielectric sensing with ultra‐compact size and high Q‐factor. Near‐equidistant resonances remain stable under shape change and bending, while capacitor loading improves bending robustness and multimode sensitivity, highlighting strong ...
Zengxiang Wang, Xiangzheng Kong, Xiaojun Huang, Ying Tian, Wang Yao, Xia Xiao, Zhuo Li, Yu Luo   +7 more
wiley   +1 more source

Doppler cooling with coherent trains of laser pulses and tunable "velocity comb"

, 2011
We explore the possibility of decelerating and Doppler cooling of an ensemble of two-level atoms by a coherent train of short, non-overlapping laser pulses.
Andrei Derevianko, Ekaterina Ilinova, H. J. Metcalf, Mahmoud Ahmad, P. R. Berman, V. Minogin   +5 more
core   +1 more source

Efficient microresonator frequency combs

eLight
AbstractThe rapid development of optical frequency combs from their table-top origins towards chip-scale platforms has opened up exciting possibilities for comb functionalities outside laboratories. Enhanced nonlinear processes in microresonators have emerged as a mainstream comb-generating mechanism with compelling advantages in size, weight, and ...
Qi-Fan Yang, Yaowen Hu, Victor Torres-Company, Kerry Vahala   +3 more
openaire   +4 more sources

Dual‐Mode Type I/II Photosensitization of a Stable Mesoporous Hydrogen‐Bonded Organic Framework for Antibacterial Therapy

Advanced Science, EarlyView.
A π‐conjugated donor–acceptor PDI monomer undergoes hydrogen‐bonded self‐assembly to form a robust mesoporous framework. The ordered molecular arrangement promotes efficient intersystem crossing and charge separation, leading to simultaneous Type I and Type II reactive oxygen species generation with a high singlet oxygen quantum yield.
Yi‐Lun Cheng, Hui Yuan, Yuhang Li, Zi‐Yu Wang, Rui Wang, Qi Yin, Xue‐Ning Ren, Miao Zheng, Yi Zeng, Tian‐Fu Liu, Zaisheng Ye   +10 more
wiley   +1 more source

Coherent control of mid-infrared frequency comb by optical injection of near-infrared light

APL Photonics, 2023
We demonstrate the use of a low power near-infrared laser illuminating the front facet of a quantum cascade laser (QCL) as an optical actuator for the coherent control of a mid-infrared frequency comb. We show that with appropriate current control of the
Kenichi N. Komagata, Alexandre Parriaux, Mathieu Bertrand, Johannes Hillbrand, Mattias Beck, Valentin J. Wittwer, Jérôme Faist, Thomas Südmeyer   +7 more
doaj   +1 more source