Generation of a terahertz quasi-Pearcey beam and its investigation in ptychography

The terahertz structured beams played a significant role in imaging. We utilized the transmitter with 0.1 THz to generate the quasi-Pearcey beam. The beam is produced by combining the self-designed parabola-slit modulated plate and Fourier lens, showing stripe-shaped pattern and self-focusing property. Based on that, introducing it into the testing of ptychography, we discovered there are decent effects in field reconstruction of the probe and sample with this beam by comparisons both in the simulations and the experiments. The beam has good spatial coherence through the analysis of the spatial frequency spectrums. It suggests that the beam with such features can take advantage of rapid reconstruction in full-field imaging.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:32

Enthalten in:

Optics express - 32(2024), 2 vom: 15. Jan., Seite 2607-2618

Sprache:

Englisch

Beteiligte Personen:

Shi, Haifeng [VerfasserIn]
Wang, Kejia [VerfasserIn]
Chen, Weiliang [VerfasserIn]
Yang, Zhengang [VerfasserIn]
Liu, Jinsong [VerfasserIn]

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Journal Article

Anmerkungen:

Date Revised 01.02.2024

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.1364/OE.509890

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367870916