All-optical logic gates for extreme ultraviolet switching via attosecond four-wave mixing

2025/10/01 by Patrick Rupprecht, Rupprecht, Patrick, Daniel M. Neumark +3
Computer Science · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Laser-Matter Interactions and Applications #Optics (physics.optics) #Quantum Information and Cryptography #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2510.00699

openalex publication_date 2025/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

All-optical logic-gate-based switching is a prerequisite for photonic computing. This article introduces a logic-gate protocol for noncollinear four-wave mixing (FWM) of one attosecond extreme ultraviolet (XUV) with two few-femtosecond near infrared (NIR) pulses. Simulations show that the NIR carrier-envelope phases (CEPs) alter the spatial distribution of the XUV FWM emission, using doubly-excited states of gas-phase helium as an example. A complete set of logic gates-X(N)OR, (N)AND, and (N)OR-is realized for the 2s3p FWM signal at 63.66 eV with switching contrasts of 3.6 to 10.4. This theoretical study extends all-optical logic switching to the XUV and x-ray regimes and opens a new pathway for ultrafast photonic logic.

Citations

• Probing autoionization decay lifetimes of the \mathbf4d^-16\boldsymbolℓ core-excited states in xenon using attosecond noncollinear four-wave-mixing spectroscopy
• Extracting doubly-excited state lifetimes in helium directly in the time domain with attosecond noncollinear four-wave-mixing spectroscopy
• Self-Heterodyned Detection of Dressed State Coherences in Helium by\n Noncollinear Extreme Ultraviolet Wave Mixing with Attosecond Pulses
• Advances in attosecond science

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