Tm3+-doped calcium lithium tantalum gallium garnet (Tm:CLTGG): novel laser crystal
dc.bibliographicCitation.firstPage | 2938 | eng |
dc.bibliographicCitation.issue | 9 | eng |
dc.bibliographicCitation.journalTitle | Optical materials express | eng |
dc.bibliographicCitation.lastPage | 2951 | eng |
dc.bibliographicCitation.volume | 11 | eng |
dc.contributor.author | Alles, Adrian | |
dc.contributor.author | Pan, Zhongben | |
dc.contributor.author | Loiko, Pavel | |
dc.contributor.author | Serres, Josep Maria | |
dc.contributor.author | Slimi, Sami | |
dc.contributor.author | Yingming, Shawuti | |
dc.contributor.author | Tang, Kaiyang | |
dc.contributor.author | Wang, Yicheng | |
dc.contributor.author | Zhao, Yongguang | |
dc.contributor.author | Dunina, Elena | |
dc.contributor.author | Kornienko, Alexey | |
dc.contributor.author | Camy, Patrice | |
dc.contributor.author | Chen, Weidong | |
dc.contributor.author | Wang, Li | |
dc.contributor.author | Griebner, Uwe | |
dc.contributor.author | Petrov, Valentin | |
dc.contributor.author | Solé, Rosa Maria | |
dc.contributor.author | Aguiló, Magdalena | |
dc.contributor.author | Díaz, Francesc | |
dc.contributor.author | Mateos, Xavier | |
dc.date.accessioned | 2022-04-01T06:12:53Z | |
dc.date.available | 2022-04-01T06:12:53Z | |
dc.date.issued | 2021 | |
dc.description.abstract | We report on the development of a novel laser crystal with broadband emission properties at ∼2 µm – a Tm3+,Li+-codoped calcium tantalum gallium garnet (Tm:CLTGG). The crystal is grown by the Czochralski method. Its structure (cubic, sp. gr. 𝐼𝑎3¯𝑑, a = 12.5158(0) Å) is refined by the Rietveld method. Tm:CLTGG exhibits a relatively high thermal conductivity of 4.33 Wm-1K-1. Raman spectroscopy confirms a weak concentration of vacancies due to the charge compensation provided by Li+ codoping. The transition probabilities of Tm3+ ions are determined using the modified Judd-Ofelt theory yielding the intensity parameters Ω2 = 5.185, Ω4 = 0.650, Ω6 = 1.068 [10−20 cm2] and α = 0.171 [10−4 cm]. The crystal-field splitting of the Tm3+ multiplets is revealed at 10 K. The first diode-pumped Tm:CLTGG laser generates 1.08 W at ∼2 µm with a slope efficiency of 23.8%. The Tm3+ ions in CLTGG exhibit significant inhomogeneous spectral broadening due to the structure disorder (a random distribution of Ta5+ and Ga3+ cations over octahedral and tetrahedral lattice sites) leading to smooth and broad gain profiles (bandwidth: 130 nm) extending well above 2 µm and rendering Tm:CLTGG suitable for femtosecond pulse generation. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/8532 | |
dc.identifier.uri | https://doi.org/10.34657/7570 | |
dc.language.iso | eng | eng |
dc.publisher | Washington, DC : OSA | eng |
dc.relation.doi | https://doi.org/10.1364/OME.435238 | |
dc.relation.essn | 2159-3930 | |
dc.rights.license | OSA Open Access Publishing Agreement | eng |
dc.rights.uri | https://www.osapublishing.org/library/license_v1.cfm | eng |
dc.subject.ddc | 620 | eng |
dc.subject.other | Calcium | eng |
dc.subject.other | Crystals | eng |
dc.subject.other | Electromagnetic pulse | eng |
dc.subject.other | Gallium | eng |
dc.subject.other | Garnets | eng |
dc.subject.other | Judd-Ofelt theory | eng |
dc.subject.other | Lithium | eng |
dc.subject.other | Lithium metallography | eng |
dc.subject.other | Positive ions | eng |
dc.subject.other | Pumping (laser) | eng |
dc.subject.other | Rietveld analysis | eng |
dc.subject.other | Tantalum | eng |
dc.subject.other | Charge compensation | eng |
dc.subject.other | Crystal-field splitting | eng |
dc.subject.other | Femtosecond pulse generation | eng |
dc.subject.other | High thermal conductivity | eng |
dc.subject.other | Intensity parameters | eng |
dc.subject.other | Random distribution | eng |
dc.subject.other | Spectral broadening | eng |
dc.subject.other | Transition probabilities | eng |
dc.subject.other | Ultrafast lasers | eng |
dc.title | Tm3+-doped calcium lithium tantalum gallium garnet (Tm:CLTGG): novel laser crystal | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | MBI | eng |
wgl.subject | Ingenieurwissenschaften | eng |
wgl.type | Zeitschriftenartikel | eng |
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