Low-dispersive phase-modulated rapid scanning interferometry

Fuente: arXiv
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Autori principali: Richter, Fabian, Bangert, Ulrich, Landmesser, Friedemann, Gölz, Nicolai, Riedel, Felix, Bruder, Lukas
Natura: Preprint
Pubblicazione: 2025
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author Richter, Fabian
Bangert, Ulrich
Landmesser, Friedemann
Gölz, Nicolai
Riedel, Felix
Bruder, Lukas
author_facet Richter, Fabian
Bangert, Ulrich
Landmesser, Friedemann
Gölz, Nicolai
Riedel, Felix
Bruder, Lukas
contents Time-domain interferometry is an important principle in Fourier transform (FT) and nonlinear femto- to attosecond spectroscopy. To optimize the resolution and sensitivity of this approach, various interferometer stabilization schemes have been developed. Among them, acousto-optical phase modulation (AOPM) of the interferometer arms combined with phase-synchronous lock-in detection has proven as a particular sensitive technique. However, the acousto-optical modulators (AOMs), required for this technique, introduce several disadvantages. Here, we demonstrate an alternative phase modulation scheme which omits AOMs, termed PM scheme here. As a benchmark, we directly compare the performance between the PM and the AOPM scheme in a linear FT spectroscopy experiment and find comparable sensitivity in both approaches.
format Preprint
id arxiv_https___arxiv_org_abs_2502_17256
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Low-dispersive phase-modulated rapid scanning interferometry
Richter, Fabian
Bangert, Ulrich
Landmesser, Friedemann
Gölz, Nicolai
Riedel, Felix
Bruder, Lukas
Optics
Atomic Physics
Time-domain interferometry is an important principle in Fourier transform (FT) and nonlinear femto- to attosecond spectroscopy. To optimize the resolution and sensitivity of this approach, various interferometer stabilization schemes have been developed. Among them, acousto-optical phase modulation (AOPM) of the interferometer arms combined with phase-synchronous lock-in detection has proven as a particular sensitive technique. However, the acousto-optical modulators (AOMs), required for this technique, introduce several disadvantages. Here, we demonstrate an alternative phase modulation scheme which omits AOMs, termed PM scheme here. As a benchmark, we directly compare the performance between the PM and the AOPM scheme in a linear FT spectroscopy experiment and find comparable sensitivity in both approaches.
title Low-dispersive phase-modulated rapid scanning interferometry
topic Optics
Atomic Physics
url https://arxiv.org/abs/2502.17256