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Carrier-envelope phase on-chip scanner and control of laser beams.

ABSTRACT: The carrier-envelope phase (CEP) is an important property of few-cycle laser pulses, allowing for light field control of electronic processes during laser-matter interactions. Thus, the measurement and control of CEP is essential for applications of few-cycle lasers. Currently, there is no robust method for measuring the non-trivial spatial CEP distribution of few-cycle laser pulses. Here, we demonstrate a compact on-chip, ambient-air, CEP scanning probe with 0.1 µm³ resolution based on optical driving of CEP-sensitive ultrafast currents in a metal-dielectric heterostructure. We successfully apply the probe to obtain a 3D map of spatial changes of CEP in the vicinity of an oscillator beam focus with pulses as weak as 1 nJ. We also demonstrate CEP control in the focal volume with a spatial light modulator so that arbitrary spatial CEP sculpting could be realized.

SUBMITTER: Hanus V

PROVIDER: S-EPMC10442376 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Carrier-envelope phase on-chip scanner and control of laser beams.

Hanus Václav V Fehér Beatrix B Csajbók Viktória V Sándor Péter P Pápa Zsuzsanna Z Budai Judit J Wang Zilong Z Paul Pallabi P Szeghalmi Adriana A Dombi Péter P

Nature communications 20230821 1

The carrier-envelope phase (CEP) is an important property of few-cycle laser pulses, allowing for light field control of electronic processes during laser-matter interactions. Thus, the measurement and control of CEP is essential for applications of few-cycle lasers. Currently, there is no robust method for measuring the non-trivial spatial CEP distribution of few-cycle laser pulses. Here, we demonstrate a compact on-chip, ambient-air, CEP scanning probe with 0.1 µm<sup>3</sup> resolution based ...[more]

PMID: 37604799

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