Enhanced absorption of waves in stealth hyperuniform disordered media.

Area of Science:

• Wave propagation
• Materials science
• Optics

Background:

• Subwavelength scatterers are crucial for manipulating wave interactions.
• Hyperuniform disordered patterns exhibit unique spatial correlations.
• Controlling absorption in low-density materials is an ongoing challenge.

Purpose of the Study:

• To investigate wave propagation in absorbing subwavelength scatterers.
• To evaluate the impact of stealth hyperuniform patterns on absorption.
• To explore the potential for designing materials with enhanced and robust absorption.

Main Methods:

• Simulating wave propagation through scatterers arranged on a stealth hyperuniform point pattern.
• Comparing absorption efficiency with fully disordered structures at identical scatterer densities.
• Analyzing the angular and spectral robustness of the absorption mechanism.

Main Results:

• Spatial correlations in the stealth hyperuniform pattern substantially enhance absorption.
• Absorption is significantly higher compared to fully disordered structures.
• The absorption mechanism is non-resonant, ensuring broad angular and spectral robustness.

Conclusions:

• Stealth hyperuniform patterns offer a route to enhanced wave absorption.
• Low-density materials can achieve blackbody-like absorption through controlled disorder.
• The findings pave the way for novel metamaterial designs with tailored optical properties.