Upconversion mechanisms in KPb2Cl5:Er3+ crystal

Rolindes Balda; Mihail Voda; Arantza Mendioroz; Mohamed Al-Saleh; Joaquin M. Fernandez

doi:10.1117/12.528324

14 June 2004 Upconversion mechanisms in KPb₂Cl₅:Er³⁺ crystal

Rolindes Balda, Mihail Voda, Arantza Mendioroz, Mohamed Al-Saleh, Joaquin M. Fernandez

Proceedings Volume 5350, Optical Components and Materials; (2004) https://doi.org/10.1117/12.528324
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

In this work we report infrared to visible upconversion luminescence in the low phonon-energy host material KPb₂Cl₅ doped with Er³⁺ ions. The low phonon energy strongly reduces multiphonon relaxation in this host. As a consequence, in addition to the strong green upconversion luminescence from ²H_11/2,⁴S_3/2) levels at room temperature, blue luminescence from ²H_9/2 and ⁴F_7/2 levels is also observed under near infrared excitation in the ⁴I_9/2 (801 nm) and ⁴I_11/2 (978 nm) multiplets respectively. The upconversion mechanisms are investigated by means of excitation and timeresolved luminescence spectroscopy.

Citation Download Citation

Rolindes Balda, Mihail Voda, Arantza Mendioroz, Mohamed Al-Saleh, and Joaquin M. Fernandez "Upconversion mechanisms in KPb₂Cl₅:Er³⁺ crystal", Proc. SPIE 5350, Optical Components and Materials, (14 June 2004); https://doi.org/10.1117/12.528324

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