| Country | Czech Republic |
| City | Pilsen |
| Tier | Core (Tier I) |
| Primary ecosystem | Metrology — semitransparent / layered systems |
| Relevant unit | Photo-thermal properties laboratory (NTC) |
| Publicly linked people | Zdeněk Veselý |
| Distinctive focus | Semitransparent coatings — beyond opaque-body assumptions |
NTC extends emissivity metrology beyond ideal opaque bulk samples toward technologically realistic layered and partially transmitting systems. Such systems undermine the simple opaque-body assumptions that underwrite much textbook emissivity thinking. A direct radiometric method for spectral emissivity of semitransparent coatings has been developed at NTC, and the institutional page explicitly lists transmittance, reflectance, emissivity, absorptivity, and thermal conductivity among the measured properties.
Transmittance · reflectance · emissivity · absorptivity · (coupled with) thermal conductivity.
Most classical emissivity methodology silently assumes the sample is opaque. Once coatings, thin films, or transparent substrates enter the picture, that assumption fails, and apparent emissivity becomes a complicated function of the underlying stack. NTC is one of the laboratories that confronts this regime head-on and has developed a documented direct radiometric method for semitransparent coatings — placing it in a strategically important niche between measurement science and real-world thermal-coating engineering.
Every claim in this profile traces to the external sources listed above. Profile follows the research-map methodology. Last verified: 2026-04 (directory revision 2026-06-11).