The near-infrared emission of Cr:Mn2SiO4 and Cr:MgCaSiO4

✍ Scribed by H. Eilers; U. Hömmerich; S.M. Jacobsen; W.M. Yen

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 330 KB
• Volume: 212
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(93)87116-k

✦ Synopsis

We report on the near-infrared (NIR) emission of Cr:Mn,SiO, (tephroite) and Cr:MgCaSiO, (monticellite). Both systems arc related to Cr:M&SiO, (forsterite) which shows laser action in the'NIR region. For both tephroite and monticellite the emission is shifted to longer wavelength compared with forsterite. Whilst the low-temperature zero-phonon lines in forsterite are at 1093 nm, they are located at 1141 and at 1226 nm in monticellite and tephroite, respectively. The room-temperature lifetime of Cr: monlicellite is 5 KS, around twice as long as the Cr: forsterite lifetime. The emission of Cr : tephroite, on the other hand, is strongly quenched at room temperature.