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Updated: Apr 2, 2026
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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
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Controlling X-ray emission with dispersion-engineered surface plasmon polaritons.
Optics Letters
|April 1, 2026
Summary
We demonstrate a novel method to control hard x-ray emission by entangling x-ray photons with engineered ultraviolet surface plasmon polaritons (SPPs). This technique allows for tunable angular-spectral structuring of x-ray beams using nonlinear optics.
Area of Science:
- Nonlinear optics
- X-ray optics
- Condensed matter physics
Background:
- Controlling hard x-ray emission properties is crucial for advanced applications.
- Surface plasmon polaritons (SPPs) offer unique light-matter interaction possibilities.
- Nonlinear optical processes are key to generating and manipulating photons.
Purpose of the Study:
- To propose and theoretically investigate a method for controlling the angular and spectral distribution of hard x-ray emission.
- To leverage engineered ultraviolet SPPs for precise manipulation of x-ray photons.
- To extend the capabilities of nonlinear x-ray optics.
Main Methods:
- Utilizing spontaneous parametric down-conversion (SPDC) of an x-ray pump.
- Entangling hard x-ray signal photons with ultraviolet SPP modes.
- Engineering SPP dispersion using metal-dielectric multilayers on a nonlinear crystal.
Main Results:
- Demonstrated reshaping of the phase-matching landscape through engineered SPP dispersion.
- Showcased the imprinting of tunable angular-spectral structure onto emitted x-ray photons.
- Established a correlation between x-ray photons and resonant ultraviolet SPP modes.
Conclusions:
- The proposed scheme offers compact and designable control over hard x-ray emission.
- This work extends the field of surface-plasmon-assisted nonlinear x-ray optics.
- The method provides a new pathway for tailoring x-ray beam properties.
