May 18, 2026 · Artificial Intelligence

LSTM Surrogate Model Accelerates Second‑Order Nonlinear Optics Simulations by 252× to Millisecond Scale

A team from Stanford, UCLA and SLAC built a high‑fidelity LSTM surrogate that predicts sum‑frequency‑generation fields with millisecond‑level latency, achieving a 252‑fold speedup over split‑step Fourier simulations while preserving sub‑percent accuracy across thousands of pulse‑shaping configurations.

LSTMMachine Learningnonlinear optics

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LSTM Surrogate Model Accelerates Second‑Order Nonlinear Optics Simulations by 252× to Millisecond Scale

Model Perspective

Oct 4, 2023 · Fundamentals

How Attosecond Light Pulses Reveal Electron Motion in Atoms

This article explains how attosecond laser pulses enable scientists to capture electron dynamics within atoms, describing the underlying nonlinear optics, the nonlinear Schrödinger equation model, and quantum mechanical perspectives that together illuminate the ultrafast behavior of matter.

attosecondelectron dynamicslaser physics

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How Attosecond Light Pulses Reveal Electron Motion in Atoms