Consolidating Multiple FemtoSecond Lasers in Coupled Curved Plasma Capillaries

TL;DR

This paper demonstrates a method to combine multiple femtosecond lasers in curved plasma capillaries, enabling efficient guiding and consolidation crucial for advanced laser-based particle accelerators.

Contribution

It introduces a novel scheme for consolidating femtosecond lasers in coupled curved capillaries, supported by experimental proof and simulations showing effective pulse guiding.

Findings

Coupling region and injection scheme are critical for pulse consolidation.

High-intensity lasers can be guided in small curvature radius capillaries.

The scheme advances the development of long-distance laser-based accelerators.

Abstract

Consolidating multiple high-energy femtosecond scale lasers is expected to enable implementation of cutting edge research areas varying from wakefield particle accelerators to ultra-high intensity laser pulses for basic fresearch. The ability to guide while augmenting a short-pulse laser is crucial in future laser based TeV particle accelerators where the laser energy depletion is the major setback. We propose, analyze and experimentally demonstrate consolidating multiple femtosecond pulse lasers in coupled curved capillaries. We demonstrate a proof of principle scheme of coupled curved capillaries where two femtosecond laser pulses are combined. We found that the details of the coupling region and injection scheme are crucial to the pulse consolidations. Furthermore, our simulations show that high-intensity short pulse laser can be guided in a small curvature radius capillary. Incorporating these finding in a curved capillary laser coupler will be a significant step towards realization of meters long TeV laser based particle accelerators.