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Ce:Nd:YAG Solar Laser with 4.5% Solar-to-Laser Conversion Efficiency

2022-07Artigo científico Acesso aberto
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dc.contributor.authorGarcia, Dário
dc.contributor.authorLiang, Dawei
dc.contributor.authorVistas, Cláudia R.
dc.contributor.authorCosta, Hugo
dc.contributor.authorCatela, Miguel
dc.contributor.authorTibúrcio, Bruno D.
dc.contributor.authorAlmeida, Joana
dc.contributor.institutionCeFITec – Centro de Física e Investigação Tecnológica
dc.contributor.institutionDF – Departamento de Física
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2023-03-16T22:36:28Z
dc.date.available2023-03-16T22:36:28Z
dc.date.issued2022-07
dc.description© 2022 by the authors.
dc.description.abstractThe efficiency potential of a small-size solar-pumped laser is studied here. The solar laser head was composed of a fused silica aspheric lens and a conical pump cavity, which coupled and redistributed the concentrated solar radiation from the focal zone of a parabolic mirror with an effective collection area of 0.293 m2 to end-side pump a Ce (0.1 at%):Nd (1.1 at%):YAG rod of 2.5 mm diameter and 25 mm length. Optimum solar laser design parameters were found through Zemax© non-sequential ray-tracing and LASCAD™ analysis. The utilization of the Ce:Nd:YAG medium with small diameter pumped by a small-scale solar concentrator was essential to significantly enhance the end-side pump solar laser efficiency and thermal performance. For 249 W incoming solar power at an irradiance of 850 W/m2, 11.2 W multimode solar laser power was measured, corresponding to the record solar-to-laser power conversion efficiency of 4.50%, being, to the best of our knowledge, 1.22 times higher than the previous record. Moreover, the highest solar laser collection efficiency of 38.22 W/m2 and slope efficiency of 6.8% were obtained, which are 1.18 and 1.02 times, respectively, higher than the previous records. The lowest threshold solar power of a Ce:Nd:YAG solar-pumped laser is also reported here.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent15
dc.format.extent5791624
dc.identifier.doi10.3390/en15145292
dc.identifier.issn1996-1073
dc.identifier.otherPURE: 56060652
dc.identifier.otherPURE UUID: 9e065d07-9863-47fb-97f2-35288938f469
dc.identifier.otherScopus: 85136253108
dc.identifier.otherWOS: 000832405400001
dc.identifier.otherORCID: /0000-0001-5890-7623/work/131002423
dc.identifier.urihttp://hdl.handle.net/10362/150710
dc.identifier.urlhttps://www.scopus.com/pages/publications/85136253108
dc.language.isoeng
dc.peerreviewedyes
dc.relationFunding Information: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00068%2F2020/PT
dc.subjectCe:Nd:YAG
dc.subjectlaser efficiency
dc.subjectparabolic mirror
dc.subjectsolar-pumped laser
dc.subjectRenewable Energy, Sustainability and the Environment
dc.subjectBuilding and Construction
dc.subjectFuel Technology
dc.subjectEngineering (miscellaneous)
dc.subjectEnergy Engineering and Power Technology
dc.subjectEnergy (miscellaneous)
dc.subjectControl and Optimization
dc.subjectElectrical and Electronic Engineering
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titleCe:Nd:YAG Solar Laser with 4.5% Solar-to-Laser Conversion Efficiencyen
dc.typejournal article
degois.publication.issue14
degois.publication.titleEnergies
degois.publication.volume15
dspace.entity.typePublication
rcaap.rightsopenAccess

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