Part 2 of 2 — Thermal Imaging Proves Aires Resonator Self-Affine Surface Acts as Near-Black-Body Cavity (ICICT 2026)

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Part 2 of 2 — Thermal Imaging Proves Aires Resonator Self-Affine Surface Acts as Near-Black-Body Cavity (ICICT 2026)

Por S.A. Lukyanov, ITMO University

 

Part 2 of 2: ICICT 2026 Thermal Imaging Physically Confirms Aires Resonator Simulation

Using precision thermal imaging and Peltier heating/cooling, this 2026 ITMO University study physically proves what the 2022 Springer simulation predicted: the self-affine resonator surface acts as a near-black-body cavity with emissivity up to ε ≈ 0.8 — far above polished silicon.

PhysicsThermal imagingSelf-affine surfaceSilicon resonatorEmissivityTesto 890ITMO UniversityICICT 2026Part 2 of 2

Two-Study Research Progression

① Part 1 (Simulation)

Springer ICICT 2022 Paper — Computer simulation predicts stable multi-frequency field distribution from the self-affine surface. Mathematical model establishes the transducer mechanism. Published in Springer Lecture Notes in Networks and Systems, doi:10.1007/978-981-19-1607-6_7.

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② This Study (Physical Proof)

Precision infrared thermal imaging physically confirms the simulation. Testo 890 thermography measurements prove the self-affine groove acts as a near-black-body cavity with emissivity up to ε ≈ 0.8, experimentally validating the mathematical model.

ε ≈ 0.8
Max emissivity of groove region
0.2 μm
Self-affine groove width
8–14 μm
Thermal imager sensitivity range
2026
ICICT Conference

2026 ICICT Presenter Certificate. The self-affine groove surface of the Aires resonator acts as a transducer — transforming incident EM radiation into a stable multi-frequency field distribution. The physical question was: can this be measured directly? This 2026 study answers yes.Background: Physically Proving the Simulation

The 2022 Springer simulation by Lukyanov, Kopyltsov & Serov mathematically predicted that the self-affine groove surface of the Aires resonator acts as a transducer — transforming incident EM radiation into a stable multi-frequency field distribution. The physical question was: can this be measured directly?

This 2026 study answers yes. Emissivity — a material's ability to emit and absorb electromagnetic radiation relative to a perfect black body — is the physical signature of the cavity effect the simulation predicted. By comparing the emissivity of the groove region vs. smooth silicon on the same wafer, this study directly measures the electromagnetic interaction difference the simulation modeled.

The underlying physics: groove-shaped depressions cause incident radiation to undergo multiple internal reflections, dramatically reducing escape probability — the same "cavity black body" principle used in physics metrology standards.

Experimental Method

A Peltier battery was placed in contact with the resonator plate. By reversing polarity, the Peltier alternately heated and cooled the resonator. A Testo 890 thermal imager (sensitivity: 8–14 μm) recorded temperature distribution across the surface during cycling.

Since the resonator is one connected object, its actual temperature is uniform. Any difference in measured temperature between zones reflects a difference in emissivity: a zone appearing hotter is actually emitting more radiation per unit area — it has higher emissivity. This is the direct physical measurement confirming the simulation's cavity mechanism.

Central zone (self-affine groove)

ε up to ≈ 0.8

Appeared warmer in all thermal images despite being the same actual temperature as the periphery. High emissivity = high absorption = cavity behavior. Confirms the simulation's transducer mechanism.

Peripheral zone (polished silicon)

ε = polished Si baseline

Appeared cooler in thermal images. Smooth silicon is a poor thermal radiator. Acts as a reflector, not an absorber. Contrast with groove zone physically validates the self-affine cavity effect.

Key Finding: Simulation Physically Confirmed

The self-affine ring groove acts as a near-black-body cavity — experimentally confirming the 2022 Springer simulation. The groove's 0.2 μm geometry causes incident EM radiation to undergo multiple internal reflections, dramatically increasing absorption probability. Critically, despite the groove being far smaller than the 8–14 μm measurement wavelength, the self-affine structure — not individual groove width — drives the enhanced emissivity. This matches the simulation's prediction that the surface characteristic is scale-invariant.
Emissivity is dynamic: It depends on heating rate due to thermal inertia. At rapid rates, groove emissivity peaks near 0.8; at slow rates approaching equilibrium, it approaches the silicon baseline. This dynamic dependence on rate directly reflects the thermal-electromagnetic coupling of the self-affine surface predicted by the simulation.

Physical Interpretation

Using Planck's radiation law and Stefan-Boltzmann law with measured temperature difference between central groove region (TR) and peripheral polished zone (TW):

εR = εPeltier × (TR/TW)4

The groove emissivity reaches values comparable to the aluminum Peltier element surface (ε ≈ 0.8) — confirming black-body-like behavior from the fractal cavity geometry.

About the Authors

S.A. Lukyanov and co-authors from ITMO University (St. Petersburg, Russia) — one of Russia's leading technical universities in optical engineering and photonics. Presented at ICICT 2026 (International Conference on Information and Communication Technologies).

← Part 1: Springer 2022 Computer Simulation  |  Self-Affine Mechanism Explained  |  ← All Research