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Maier, Simon ; Meierhofer, Manuel ; Laepple, Ignaz ; Glöckl, Katharina ; Tresp, C. ; Hohenleutner, Matthias ; Huber, Markus A. ; Huber, Rupert

Fast and compact four-quadrant CEP detection with f-2f polarization interferometry

Maier, Simon , Meierhofer, Manuel , Laepple, Ignaz, Glöckl, Katharina , Tresp, C., Hohenleutner, Matthias, Huber, Markus A. and Huber, Rupert (2025) Fast and compact four-quadrant CEP detection with f-2f polarization interferometry. Optics Express 33 (12), pp. 25221-25232.

Date of publication of this fulltext: 02 Jul 2025 08:26
Article
DOI to cite this document: 10.5283/epub.76924

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Abstract

The carrier-envelope phase (φCEP) of few-cycle light pulses is of crucial importance for strong-field light-matter interaction on subcycle time scales. Standard f-2f interferometry rapidly records beat notes defined by the carrier-envelope offset frequency (fCEO), but measuring φCEP at a high bandwidth is more involved. Here, we introduce f-2f polarization interferometry, which unambiguously ...

The carrier-envelope phase (φCEP) of few-cycle light pulses is of crucial importance for strong-field light-matter interaction on subcycle time scales. Standard f-2f interferometry rapidly records beat notes defined by the carrier-envelope offset frequency (fCEO), but measuring φCEP at a high bandwidth is more involved. Here, we introduce f-2f polarization interferometry, which unambiguously measures φCEP over a range of 2π at the detection speed of the implemented photodiodes. It relies on evaluating the polarization state of the spectral overlap of a traditional f-2f interferometer with linear optical components and balanced photodiodes. In the first implementation, we detect φCEP modulations with a read-out rate of up to 60 kHz. Our scheme promises single-shot φCEP detection at intrinsic oscillator repetition rates in the MHz regime. It can be used in a wide range of ultrafast experiments, from φCEP stabilization and phase tagging to selective high-harmonic generation and precise lightwave control of electron motion.



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Item typeArticle
Journal or Publication TitleOptics Express
Publisher:Optica Publishing Group
Open Access Type:Gold (with APC)
Volume:33
Number of Issue or Book Chapter:12
Page Range:pp. 25221-25232
Date5 June 2025
InstitutionsPhysics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber
Regensburg Center for UltrafastNanoscopy (RUN)
Projects
Funded by: Deutsche Forschungsgemeinschaft (DFG) (314695032)
Funded by: Deutsche Forschungsgemeinschaft (DFG) (406658631)
Funded by: Deutsche Forschungsgemeinschaft (DFG) (UNSPECIFIED)
Identification Number
ValueType
10.1364/OE.545392DOI
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgPartially
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-769243
Item ID76924

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