Induced absorption spectra of crystal violet at various solvents

N. G. Dmitrieva; O. N. Tchaykovskaya; E. N. Bocharnikova; D. M. Ezhov

doi:10.1117/12.2593826

2 December 2021 Induced absorption spectra of crystal violet at various solvents

N. G. Dmitrieva, O. N. Tchaykovskaya, E. N. Bocharnikova, D. M. Ezhov

Proceedings Volume 12086, XV International Conference on Pulsed Lasers and Laser Applications; 120861T (2021) https://doi.org/10.1117/12.2593826
Event: XV International Conference on Pulsed Lasers and Laser Applications, 2021, Tomsk, Russian Federation

Abstract

The study of short-lived induced (singlet-singlet) and long-lived induced (in particular, triplet-triplet) absorption capacity of crystal violet (CV) in various solvents was carried out by the pump-probe method. Water, dimethyl sulfoxide, isopropyl alcohol, and ethyl alcohol were selected as solvents. The formation of triplet states in various CV solvents was revealed upon excitation by nanosecond radiation of the 4th harmonic of a Nd: YAG laser (wavelength 266 nm, average power – 25.5 mV, repetition frequency – 3 Hz, pulse duration – 10 ns, peak power – 10-12 MW/cm²). It is shown that the spectrum of the induced CV absorption in ethanol contains two closely spaced bands at 400 and 485 nm. Short-lived and long-lived induced CV absorption in isopropanol at room temperature (λ_max=400 nm) was recorded. Keywords: crystal violet (CV), induced absorption spectra, spectroscopy, pump-probe method.

Citation Download Citation

N. G. Dmitrieva, O. N. Tchaykovskaya, E. N. Bocharnikova, and D. M. Ezhov "Induced absorption spectra of crystal violet at various solvents", Proc. SPIE 12086, XV International Conference on Pulsed Lasers and Laser Applications, 120861T (2 December 2021); https://doi.org/10.1117/12.2593826

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