TITLE:
First Order Phase Transitions as Radiation Processes
AUTHORS:
Vitali A. Tatartchenko, Pavel V. Smirnov, Yong Wu
KEYWORDS:
Peta Effect; First Order Phase Transitions; Vapour Condensation; Vapour Deposition; Melt Crystallization; Infrared Radiation; Atmospheric Phenomena
JOURNAL NAME:
Optics and Photonics Journal,
Vol.3 No.8A,
December
11,
2013
ABSTRACT: This paper presents new experimental evidence of the PeTa effect—infrared characteristic radiation under first order phase transitions, especially the crystallization of melts and the deposition and condensation of vapours/gases. The PeTa effect describes the transient radiation that a particle (i.e., atom, molecule or/and cluster) emits transient radiation during a transition from a meta-stable higher energetic level (in a super-cooled melt or a super-saturated vapour) to the stable condensed lower level (in a crystal or a liquid). The radiation removes latent heat with photons of characteristic frequencies that are generated under this transition. The abbreviation “PeTa effect” means Perel’man-Tatartchenko’s effect.