Autor segons l'article: Elabedine, Ghassen Zin; Subbotin, Kirill; Loiko, Pavel; Pan, Zhongben; Eremeev, Kirill; Zimina, Yulia; Didenko, Yana; Pavlov, Sergei; Titov, Anatoly; Dunina, Elena; Fomicheva, Liudmila; Braud, Alain; Sole, Rosa Maria; Aguilo, Magdalena; Diaz, Francesc; Chen, Weidong; Volkov, Pavel; Mateos, Xavier
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Solé Cartañà, Rosa Maria / Zin Elabedine, Ghassen
Paraules clau: Znwo4 Thulium ions Spectra Solid-state lasers Solid-state laser Optical spectroscopy Luminescence Laser materials Klu(wo4)(2) Judd-ofelt theory Ions Intensities Er3 Absorption
Resum: We report on the crystal growth, polarized spectroscopy, and laser operation of monoclinic Tm3+, Na+(Li+) codoped zinc monotungstate (ZnWO4) crystals. The Li+ codoping with an optimized Tm/Li ratio enables almost complete local charge compensation leading to better crystal quality, higher Tm segregation coefficient, and longer luminescence lifetime and ultimately the demonstration of laser operation. The modified Judd-Ofelt theory was employed to calculate the Tm3+ transition probabilities yielding a radiative lifetime of the F-3(4) state of 2.59 ms. The corresponding intensity parameters are Omega(2) = 5.194, Omega(4) = 0.658, Omega(6) = 0.471 [10(-20) cm(2)] and alpha = 0.110 [10(-4) cm]. Tm,Li:ZnWO4 features strongly polarized emission spectra extending beyond 2 mu m owing to a large total Stark splitting of the ground-state, Delta E (H-3(6)) = 644 cm(-1). The stimulated-emission cross-section in this spectral range reaches 0.47 x 10(-20) cm(2) at 2015 nm for light polarization E || N-p. The continuous-wave Tm,Li:ZnWO4 laser generated 282 mW at 1.98 mu m with a slope efficiency of 14.7 %, and laser emission at 2.03 mu m was also achieved.
Àrees temàtiques: Spectroscopy Química Physical and theoretical chemistry Physical and theoretical c Organic chemistry Optics Odontología Medicina ii Materials science, multidisciplinary Materials science Materiais Interdisciplinar Inorganic chemistry General computer science Engenharias iv Engenharias iii Engenharias ii Electronic, optical and magnetic materials Electrical and electronic engineering Computer science (miscellaneous) Ciências ambientais Ciência de alimentos Biotecnología Biodiversidade Atomic and molecular physics, and optics Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: magdalena.aguilo@urv.cat rosam.sole@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Identificador de l'autor: 0000-0001-6130-9579 0000-0002-5769-4141 0000-0003-1940-1990 0000-0003-4581-4967
Data d'alta del registre: 2024-10-05
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Referència a l'article segons font original: Optical Materials. 157 116039-
Referència de l'ítem segons les normes APA: Elabedine, Ghassen Zin; Subbotin, Kirill; Loiko, Pavel; Pan, Zhongben; Eremeev, Kirill; Zimina, Yulia; Didenko, Yana; Pavlov, Sergei; Titov, Anatoly; (2024). Growth, spectroscopy and 2 μm laser operation of monoclinic Tm3+:ZnWO4 crystal. Optical Materials, 157(), 116039-. DOI: 10.1016/j.optmat.2024.116039
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV