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Absorption and Emission Spectroscopy of a Lasing Material: Ruby

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C. Degli Esposti and L. Bizzocchi

Dipartimento di Chimica "G. Ciamician", Università di Bologna, 40126 Bologna, Italy

J. Chem. Educ., 2007, 84 (8), p 1316

DOI: 10.1021/ed084p1316

Publication Date (Web): August 1, 2007

Abstract

This article describes a laboratory experiment that allows the students to characterize the photophysical properties of ruby, the crystalline material that was used as the active medium to produce the first laser emission. The students record the absorption and emission spectra of low-cost samples of industrial ruby and determine the lifetime of the luminescent excited state. The results obtained are explained in terms of crystal field theory, optical selection rules, and rates of radiative and nonradiative relaxation processes, and they are related to the operating conditions of a ruby laser. This instrumental experiment has been developed for an upper-division undergraduate audience, and it is suitable for advanced physical chemistry or inorganic chemistry courses.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Fluorescence Spectroscopy

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Received: August 03, 2009

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Absorption and Emission Spectroscopy of a Lasing Material: Ruby

Abstract

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Recommend & Share

Related Content

Quantifying the Electron-Donating Strength of Phosphine Ligands

Inexpensive Raman Spectrometer for Undergraduate and Graduate Experiments and Research

Structural Analysis of Nanofilms Using FTIR Spectroscopy. An Introduction to the Spectroscopic Analysis of Nanostructures for Undergraduate Students

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