English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Compressed Sensing of Field-Resolved Molecular Fingerprints Beyond the Nyquist Frequency

Scheffter, K., Will, J., Riek, C., Herve, J., Coudreau, S., Forget, N., et al. (2024). Compressed Sensing of Field-Resolved Molecular Fingerprints Beyond the Nyquist Frequency. Ultrafast Science, (4): 0062. doi:10.34133/ultrafastscience.0062.

Item is

Files

show Files
hide Files
:
ultrafastscience.0062.pdf (Publisher version), 4MB
Name:
ultrafastscience.0062.pdf
Description:
-
OA-Status:
Not specified
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
Copyright © 2024 Kilian Scheffter et al. Exclusive licensee Xi’an Institute of Optics and Precision Mechanics. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY 4.0).

Locators

show

Creators

show
hide
 Creators:
Scheffter, Kilian1, 2, Author           
Will, Jonathan1, 2, Author           
Riek, Claudius3, Author
Herve, Jousselin3, Author
Coudreau, Sébastien3, Author
Forget, Nicolas3, Author
Fattahi, Hanieh1, 2, Author           
Affiliations:
1Fattahi Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society, ou_3215430              
2Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations, DE, ou_3487833              
3External, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Ultrashort time-domain spectroscopy and field-resolved spectroscopy of molecular fingerprints are gold standards for detecting samples’ constituents and internal dynamics. However, they are hindered by the Nyquist criterion, leading to prolonged data acquisition, processing times, and sizable data volumes. In this work, we present the first experimental demonstration of compressed sensing on field-resolved molecular fingerprinting by employing random scanning. Our measurements enable pinpointing the primary absorption peaks of atmospheric water vapor in response to terahertz light transients while sampling beyond the Nyquist limit. By drastically undersampling the electric field of the molecular response at a Nyquist frequency of 0.8 THz, we could successfully identify water absorption peaks up to 2.5 THz with a mean squared error of 12 × 10−4. To our knowledge, this is the first experimental demonstration of time-domain compressed sensing, paving the path toward real-time field-resolved fingerprinting and acceleration of advanced spectroscopic techniques.

Details

show
hide
Language(s): eng - English
 Dates: 2024-05-09
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.34133/ultrafastscience.0062
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Ultrafast Science
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: USA / China : AAAS / XIOPM (CAS)
Pages: - Volume / Issue: (4) Sequence Number: 0062 Start / End Page: - Identifier: ISSN: 2097-0331
ISSN: 2765-8791
CoNE: https://pure.mpg.de/cone/journals/resource/2097-0331