Results 91 to 100 of about 25,039 (305)

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

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

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

Extreme ultraviolet frequency comb metrology [PDF]

, 2010
The remarkable precision of frequency-comb (FC) lasers is transferred to the extreme ultraviolet (XUV, wavelengths shorter than 100nm), a frequency region previously not accessible to these devices.
Ubachs, W.M.G., Kandula, D.Z., Wim Ubachs, Eikema, K.S.E., Dominik Z. Kandula, Ubachs, W.M.G.; id_orcid, Gohle, C., Christoph Gohle, Kjeld S. E. Eikema, Pinkert, T.J., Tjeerd J. Pinkert   +10 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

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

Observation of topological frequency combs

Quantum Computing, Communication, and Simulation V
On-chip generation of optical frequency combs using nonlinear ring resonators has enabled numerous applications of combs that were otherwise limited to mode-locked lasers. Nevertheless, on-chip frequency combs have relied predominantly on single-ring resonators.
Christopher J. Flower, Mahmoud Jalali Mehrabad, Lida Xu, Gregory Moille, Daniel G. Suarez-Forero, Oğulcan Örsel, Gaurav Bahl, Yanne Chembo, Kartik Srinivasan, Sunil Mittal, Mohammad Hafezi   +10 more
openaire   +3 more sources

Direct Kerr-frequency-comb atomic spectroscopy

, 2018
Microresonator-based soliton frequency combs - microcombs - have recently emerged to offer low-noise, photonic-chip sources for optical measurements.
Jordan R. Stone (3963479), Zachary Newman (6613949), Kerry Vahala (7146992), Myoung-Gyun Suh (12736199), Songbai Kang (4961203), Daniel C. Cole (3961250), John Kitching (14387631), Scott A Diddams (17496510), Connor Fredrick (4961206), Liron Stern (1491877), Scott B. Papp (3961244)   +10 more
core   +1 more source

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

Advanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang, Zhen‐Hui Qin, Yi‐Han He, Yun‐Fei Cheng, Hao Yan, Si‐Yuan Yu, Ming‐Hui Lu, Yan‐Feng Chen   +7 more
wiley   +1 more source

Versatile mid-infrared frequency-comb referenced sub-Doppler spectrometer

APL Photonics, 2018
We present a mid-IR high-precision spectrometer capable of performing accurate Doppler-free measurements with absolute calibration of the optical axis and high signal-to-noise ratio.
A. Gambetta, E. Vicentini, N. Coluccelli, Y. Wang, T. T. Fernandez, P. Maddaloni, P. De Natale, A. Castrillo, L. Gianfrani, P. Laporta, G. Galzerano   +10 more
doaj   +1 more source