Metrology: filtering noise with a quantum probe.

Nature

Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado 80305, USA.

Published: May 2011

Download full-text PDF

Source
http://dx.doi.org/10.1038/473039aDOI Listing

Publication Analysis

Top Keywords

metrology filtering
4
filtering noise
4
noise quantum
4
quantum probe
4
metrology
1
noise
1
quantum
1
probe
1

Similar Publications

This paper aims to address the challenge of precise robotic grasping of molecular sieve drying bags during automated packaging by proposing a six-dimensional (6D) pose estimation method based on an red green blue-depth (RGB-D) camera. The method consists of three components: point cloud pre-segmentation, target extraction, and pose estimation. A minimum bounding box-based pre-segmentation method was designed to minimize the impact of packaging wrinkles and skirt curling.

View Article and Find Full Text PDF

Monodisperse films of spherical tantalum oxide (V) nanoclusters and spherical tantalum nanoclusters with a tantalum oxide shell with diameters of 1.4-8 nm were obtained by magnetron sputtering. The size of the deposited nanoclusters was controlled using a quadrupole mass filter.

View Article and Find Full Text PDF

The geometric error distributed on components' contact surfaces is a critical factor affecting assembly accuracy and precision instrument stability. Effective error separation methods can improve model accuracy, thereby aiding in performance prediction and process optimization. Here, an error separation method for geometric distribution error modeling for precision machining surfaces based on the K-space spectrum is proposed.

View Article and Find Full Text PDF

Background: The clinical use of flattening filter free (FFF) radiotherapy has significantly increased in recent years due to its effective enhancement of dose rates and reduction of scatter dose. A proposal has been made to adjust the incident electron angle of the accelerator to expand the application of FFF beams in areas such as large planning target volumes (PTVs). However, the inherent softening characteristics and non-uniformity of lateral dose distribution in FFF beams inevitably lead to increased dosimetry errors, especially for ionization chambers widely used in clinical practice, which may result in serious accidents during FFF radiotherapy.

View Article and Find Full Text PDF

Million-Q free space meta-optical resonator at near-visible wavelengths.

Nat Commun

November 2024

Department of Electrical and Computer Engineering, University of Washington, Seattle, WA, 98195, USA.

Article Synopsis
  • The study focuses on creating high-quality optical resonators, essential for technologies like metrology and quantum optics, particularly aiming to achieve extreme temporal coherence at visible wavelengths.* -
  • Researchers developed a new type of etch-free metasurface that minimizes defects, successfully demonstrating an impressive ultrahigh-Q resonance in free space, along with a novel spectroscopy technique for detailed analysis.* -
  • By integrating a monolayer material, the team achieved highly unidirectional exciton emission without a power density threshold, showcasing potential applications in optical sensing and controlling quantum light sources.*
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!