Exploring the Limits: Failure Modes and Novel Physics in High-Power, High-Repetition-Rate CPA-Driven Tweezers

While much research focuses on improving performance or efficiency, little attention has been paid to the possible failure modes, instabilities, or novel physical effects arising when pushing optical tweezers into the high-intensity, high-repetition-rate regimes enabled by next-generation CPA systems (Baudisch, 2017; Buck et al., 2024). This research would involve a thorough experimental and theoretical investigation of such limits: What happens when tweezers operate with gigawatt-peak-power, 100 kHz repetition rate pulses? Are there new forms of optical damage, particle ejection, nonlinear self-organization, or even collective effects among trapped particles? By deliberately seeking out and characterizing these deviations from expected behavior, this project could uncover new mechanisms of light-matter interaction, set practical boundaries for tweezers operation, and even inspire new applications (e.g., in materials synthesis or plasma generation). The focus on "failures" or extremal behavior is a methodological novelty, inspired by the heuristic of investigating deviations from expectations.

References:

1. High power, high intensity few-cycle pulses in the mid-IR for strong-field experiments. M. Baudisch (2017).
2. A Review of Optical Parametric Amplification at the Vulcan Laser Facility. Samuel Buck, Pedro Oliveira, Theodoros Angelides, Marco Galimberti (2024). Photonics.