Sinusoidal And Non – Sinusoidal Airy Functions, Non – Linear Optical Behavior In Rose Bengal With Its Selective Organic Charge Transfer Complexes

Organic photoconductor Rose Bengal was studied with infrared spectroscopy. The spectra of charge transfer complexes of rose Bengal differ to other ternary CT complexes and all other photoconductors, that only one absorption edge is found. There is a mid-IR half-power beta density indicative of the hopping mechanism of charge transport. The beta density is modulated by a fluctuation in oscillator strength described with a cubic equation of state of imperfect gas or an arrival of a second precursor of a signal in dispersive medium described by an Airy function or a more generalized function. It is verified that Rose Bengal and its CT complexes are non-linear optical media apart from being photoconductors.