Toward Nonlinear Optics with Mössbauer Nuclei Using X-Ray Cavities

Area of Science:

• Nuclear physics
• Quantum optics
• Materials science

Background:

• Strong excitation of nuclear resonances, particularly Mössbauer nuclei, is a key goal in nuclear physics.
• Novel X-ray sources offer new possibilities for achieving this goal.

Purpose of the Study:

• To explore the conditions for entering the nonlinear optics regime with nuclei.
• To present a comprehensive theory of nonlinear nuclear excitation in thin-film X-ray cavities.
• To identify experimental parameters for efficient nuclear excitation and radiation damage mitigation.

Main Methods:

• Theoretical modeling of nonlinear nuclear excitation.
• Analysis of thin-film X-ray cavities with focused X-ray pulses.
• Comparison with available X-ray technologies.

Main Results:

• Identification of cavity geometries with broad resonances that enhance nuclear excitation.
• Demonstration of boosted nuclear excitation at moderately tight focusing.
• Possibility of mitigating radiation damage through optimized cavity design.

Conclusions:

• Novel X-ray cavities offer a promising route to strong nuclear resonance excitation.
• The developed theory provides a framework for designing experiments in nonlinear nuclear optics.
• This research paves the way for advanced applications in nuclear physics and materials science.