Experimental determination of effective light transport properties in fully anisotropic media

Pini, Ernesto (avtor), Naglič, Peter (avtor), Bürmen, Miran (avtor), Gatto, Alexander (avtor), Schäferd, Henrik (avtor), Wiersma, Diederik S. (avtor), Pattelli, Lorenzo (avtor)

Structurally anisotropic materials are ubiquitous in several application fields, yet their accurate optical characterization remains challenging due to the lack of general models linking their scattering coefficients to the macroscopic transport observables and the need to combine multiple measurements to retrieve their direction-dependent values. Here, we present an improved method for the experimental determination of light-transport tensor coefficients from the diffusive rates measured along all three directions, based on transient transmittance measurements and a generalized Monte Carlo model. We apply our method to the characterization of light-transport properties in two common anisotropic materials—polytetrafluoroethylene tape and paper—highlighting the magnitude of systematic deviations that are typically incurred when neglecting anisotropy.

• Jezik: Angleški jezik
• Ključne besede: scattering, anisotropy, material properties, simulations, light scattering, transmittance, diffusion, picosecond phenomena, signal intensity, refractive index
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 056017-1-056017-8
• Številčenje: Vol. 4, no. 5, art. 056017
• PID: 20.500.12556/RUL-168024
• UDK: 535.36
• ISSN pri članku: 2791-1519
• DOI: 10.1117/1.APN.3.5.056017
• COBISS.SI-ID: 229763587
• Datum objave v RUL: 25.03.2025

Gradivo je del revije

• Naslov: Advanced photonics nexus
• Skrajšan naslov: Adv. photonics nexus
• Založnik: SPIE, Chinese Laser Press
• ISSN: 2791-1519
• COBISS.SI-ID: 229760515

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: sipanje, anizotropija, lastnosti materialov, simulacije, sipanje svetlobe, transmitanca, difuzija, pikosekundni pojavi, lomni količnik