PRE is the acronym indicating the series of International Workshops on Photoluminescence of Rare-Earth: Photonic Materials and Applications, begun in Trento, Italy, in May 2005, on the initiative of Maurizio Ferrari and Giancarlo C. Righini. These Workshops are sponsored by the TC20 Committee (Photonic Glasses and Optical Fibers) of the International Commission on Glass (ICG).
All the Workshops have been quite successful and keep providing excellent opportunities for discussions between researchers working on photoluminescence of rare-earth ions in various materials and devices, as well as on their applications.

Here there are some data about the past PREs (the number of contributions includes all types of presentation, namely invited, oral, and poster). Since 2016, dr. Righini has been appointed Honorary Chair of the PRE Workshops.

PRE’05 (Trento, Italy)
        Co-chairs: Bernard Champagnon, Maurizio Ferrari, Giancarlo C. Righini
        Attendance: over 70 people, from 9 Countries - 47 presentations

PRE’07 (Trento, Italy)
        Co-chairs: Maurizio Ferrari, Giancarlo C. Righini, Setsuhisa Tanabe
        Attendance: over 70 people, from 9 Countries - 57 presentations

PRE’10 (Florence, Italy)
        Co-chairs: Maurizio Ferrari, Giancarlo C. Righini, Setsuhisa Tanabe
        Attendance: 126 people from 20 Countries - 96 presentations

PRE’12 (Kyoto, Japan)
        Co-chairs: Setsuhisa Tanabe, Giancarlo C. Righini, Maurizio Ferrari
        Attendance: 167 participants from 21 Countries - 140 presentations

PRE’14 (San Sebastian, Spain)
        Co-chairs: Rolindes Balda, Joaquìn Fernández, Maurizio Ferrari
        Attendance: 110 participants from 23 Countries - 122 presentations

PRE’16 (Greenville, USA)
        Co-chairs: Luiz G. Jacobsohn, John Ballato
        Attendance: 65 participants from 11 Countries - 59 presentations

PRE’17 (Roma, Italy)
        Co-chairs: Dominik Dorosz, Maurizio Ferrari, Laeticia Petit
        Attendance: 140 participants from 28 Countries - 137 presentations

PRE’19 (Nice, France)
        Co-chairs: Wilfried Blanc, Pieter Dorenbos, Fiorenzo Vetrone

After each Workshop, a Special Issue of a journal (so far, it was Optical Materials) was published, that included a number of selected papers, peer-reviewed according to the standard journal’s procedure:

  • PRE’05: Optical Materials, Volume 28, Issue 11, August 2006
    Preface, by G. C. Righini, M. Ferrari, B. Champagnon

  • PRE’07 Optical Materials, Volume 31, Issue 9, July 2009
    Preface, by G. C. Righini, M. Ferrari, S. Tanabe

  • PRE’10: Optical Materials, Volume 33, Issue 2, December 2010
    Preface, by G. C. Righini

  • PRE’12: Optical Materials, Volume 35, Issue 11, September 2013
    Preface, by S. Tanabe, G. C. Righini, M. Ferrari

  • PRE’14: Optical Materials, Volume 41, March 2015
    Preface, by R. Balda, J. Fernández, M. Ferrari

  • PRE’16: Optical Materials, Volume 68, June 2017
    Preface, by Luiz G. Jacobsohn and John Ballato

  • PRE’17: Optical Materials, Volume 87, January 2019
    Preface, by D. Dorosz, G. C. Righini, M. Ferrari, L. Petit

  • PRE’19: a Special Issue of the journal Ceramics International is planned; the submission deadline is December 1st, 2019.

The story continues: see you in Cancún, Mexico, in September 2021, at PRE’21, the 9th International Workshop on Photoluminescence of Rare-Earth!!