Results 181 to 190 of about 124,588 (288)

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

open access: yesLaser &Photonics Reviews, EarlyView.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber   +6 more
wiley   +1 more source

Multifunctional lithium niobate platform for photodetection and photoacoustic and thermoelastic gas sensing. [PDF]

open access: yesNat Commun
Lin H   +13 more
europepmc   +1 more source

Direct Digital Simultaneous Phase-Amplitude Noise and Allan Deviation Measurement System

open access: yesIEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control
Marco Pomponio   +2 more
openaire   +1 more source

Optical‐to‐Microcomb Stability Transfer for Ultrastable Timing and Microwave/Millimeter‐Wave Generation

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn   +4 more
wiley   +1 more source

Ultra-Low-Power Atomic Clock for Satellite Constellation with 2.2x10-12 Long-Term Allan Deviation Using Cesium Coherent Population Trapping

open access: yesUltra-Low-Power Atomic Clock for Satellite Constellation with 2.2x10-12 Long-Term Allan Deviation Using Cesium Coherent Population Trapping
identifier:oai:t2r2.star.titech.ac.jp ...
openaire   +1 more source

High-Update-Rate (25 kHz) Laser Ranging with Random Noise Modulation for Fast and Precise Absolute Distance Measurement. [PDF]

open access: yesSensors (Basel)
Chen Y   +15 more
europepmc   +1 more source

Pathogenic or Likely Pathogenic GRN Variants Are Found in 0.1% of Parkinson's Disease Patients

open access: yesMovement Disorders, EarlyView.
Abstract Background Parkinsonism may be observed in multiple neurodegenerative diseases, including GRN‐associated frontotemporal dementia (FTD‐GRN), complicating the differential diagnosis of Parkinson's disease (PD). Objectives To investigate the presence of GRN variants in a large group of PD patients.
Christian A. Ganoza   +31 more
wiley   +1 more source

Trends in Discharge to Hospice After Critical Illness Among US Medicare Beneficiaries, 2011-2023. [PDF]

open access: yesAnn Am Thorac Soc
Law AC   +7 more
europepmc   +1 more source

Genome‐Wide Assessment Reveals Ancestral Differences in Homozygosity Patterns Potentially Linked to Parkinson's Disease Etiology

open access: yesMovement Disorders, EarlyView.
Abstract Background Recessive genetic variation and extended runs of homozygosity (ROHs) may contribute to the unexplained heritability of Parkinson's disease (PD), particularly in diverse and understudied populations. Objective We conducted the first large‐scale, multi‐ancestral investigation of PD to examine the impact of genome‐wide homozygosity on ...
Kathryn Step   +680 more
wiley   +1 more source

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