The Variation of Light Transmission of Heavily Doped Ruby at Magnetic Resonance

Abstract

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Temperature Variations of Spectra and Images of Photoluminescence from Heavily Cr-Doped Ruby

“…Numerous studies have reported on the characteristics of PL from ruby, highlighting not only the R line but also additional PL peaks. [25][26][27][28][29][30][31][32][33][34][35] Shorter wavelength vibronic emissions at λ = 670 nm, paired Cr 3+ ion emissions at λ = 707 and 715 nm (N 1 and N 2 lines), and cluster emissions at λ = 770 nm have been observed, particularly in heavily Cr-doped rubies. [29][30][31][32][33][34][35] These additional PL peaks, broader than the narrow R line peak, significantly contribute to the integrated intensity of the PL peak area and the brightness of the PL image.…”

“…[25][26][27][28][29][30][31][32][33][34][35] Shorter wavelength vibronic emissions at λ = 670 nm, paired Cr 3+ ion emissions at λ = 707 and 715 nm (N 1 and N 2 lines), and cluster emissions at λ = 770 nm have been observed, particularly in heavily Cr-doped rubies. [29][30][31][32][33][34][35] These additional PL peaks, broader than the narrow R line peak, significantly contribute to the integrated intensity of the PL peak area and the brightness of the PL image. Therefore, characterizing these additional PL peaks is essential for 2-D fluorescence thermometry applications based on PL imaging from ruby.…”