Determination of homogeneous spectral widths by fluorescence line narrowing in Ca(PO3)2:

Takashi Kushida

¹

,

Eisei Takushi

²

Abstract

Homogeneous spectral widths are determined for inhomogeneously broadened transitions of the Eu'+ ion in Ca(PO, ), glass by observing resonance fluorescence lines under monochromatic dye-laser excitation. A Lorentzian profile of the emission line measured is consistent with the existing theory. Effects of spectral diffusion and strain broadening on the fluorescence narrowing are discussed.

Homogeneous line width of rare-earth-doped glasses for levels in a Stark level ladder: A new simple rule

“…Although the first study, before current laser availability, has used classical spectroscopy and has considered several Stark levels [8], most of the later studies have made use of laser-based sophisticated techniques [1][2][3][4][5][6][7][8][9] like ''florescence line narrowing'', ''photon echo'', or ''hole burning''. Few studies [8][9][10][11] have dealt with the problem of the homogeneous width of individual levels in a Stark ladder in general, and still fewer have considered this aspect in glasses [11,12].…”

“…Most of the studies about homogeneous width of transitions in rare-earth (RE)-doped glasses, have been restricted mainly to so-called 0-0 transitions, that is, either between un-split states (the well-known 5 D 0 -7 F 0 case of Eu 3+ ) [1,2] or between the lower states of given Stark multiplets [3][4][5][6][7]. Although the first study, before current laser availability, has used classical spectroscopy and has considered several Stark levels [8], most of the later studies have made use of laser-based sophisticated techniques [1][2][3][4][5][6][7][8][9] like ''florescence line narrowing'', ''photon echo'', or ''hole burning''.…”

Mechanism of the room-temperature persistent spectral hole burning in borate glasses doped with Eu3+

“…Broadening of homogeneous linewidth in this glass is probably due to the resonant or nonresonant energy transfer among ions located at different sites. [19][20][21][22] Hole burning was also attempted at different temperatures using the BNEC10 glass ͑Fig. 2͒.…”

Three decades of luminescence research

“…These two subjects constituted my first two contributions in ICL [4,5]. My participation was encouraged by the fact that Shionoya was the first to conduct TRFLN in glasses [6] and Professor T. Kushida, who was at the ISSP at that time, was also heavily engaged in the development of laser spectroscopy methods and measurements as applied to solids [7].…”