TY - JOUR
T1 - Most efficient simultaneous solar laser emissions from three Ce:Nd:YAG rods within a single pump cavity
AU - Liang, Dawei
AU - Vistas, Cláudia R.
AU - Garcia, Dário
AU - Tibúrcio, Bruno D.
AU - Catela, Miguel
AU - Costa, Hugo
AU - Guillot, Emmanuel
AU - Almeida, Joana
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FFIS-OTI%2F0332%2F2021/PT#
info:eu-repo/grantAgreement/EC/H2020/823802/EU#
info:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F125116%2F2016/PT#
info:eu-repo/grantAgreement/FCT/OE/PD%2FBD%2F142827%2F2018/PT#
info:eu-repo/grantAgreement/FCT/FARH/PD%2FBD%2F128267%2F2016/PT#
info:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F145322%2F2019/PT#
info:eu-repo/grantAgreement/FCT/OE/2021.06172.BD/PT#
info:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F03081%2F2017%2FCP1462%2FCT0001/PT#
Financial supports of strategic project (UID/FIS/00068/2020).
Technology and Higher Education ( FCT - MCTES ) are acknowledged. Financial support by the Solar Facilities for European Research Area
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - We report here, to the best of our knowledge, the most efficient simultaneous emissions of three continuous-wave 1064 nm solar laser beams. A fused silica aspheric lens was used to couple the concentrated solar radiation from the focal zone of a 0.4 m2 effective collection area primary parabolic mirror into three 2.5 mm diameter, 25 mm length 0.1 at.% Ce:1.1 at.% Nd:YAG laser rods within a single conical pump cavity. For 356 W incoming solar power, 16.5 W continuous-wave total multimode solar laser power was measured, corresponding to 4.64% solar-to-laser conversion efficiency, 41.25 W/m2 collection efficiency, and 7.64% slope efficiency, which are 1.24, 1.27, and 1.11 times, respectively, higher than previous records by pumping a single 4.5 mm diameter, 35 mm length 0.1 at.%Cr:1.0 at.%Nd:YAG ceramic laser rod. The three-rod Ce:Nd:YAG solar laser also provided 2.13, 2.25 and 1.50 times enhancements in solar-to-laser conversion efficiency, collection efficiency, and slope efficiency, respectively, as compared to previous records by pumping three 3.0 mm diameter, 25 mm length 1.0 at.% Nd:YAG rods within the same single conical pump cavity.
AB - We report here, to the best of our knowledge, the most efficient simultaneous emissions of three continuous-wave 1064 nm solar laser beams. A fused silica aspheric lens was used to couple the concentrated solar radiation from the focal zone of a 0.4 m2 effective collection area primary parabolic mirror into three 2.5 mm diameter, 25 mm length 0.1 at.% Ce:1.1 at.% Nd:YAG laser rods within a single conical pump cavity. For 356 W incoming solar power, 16.5 W continuous-wave total multimode solar laser power was measured, corresponding to 4.64% solar-to-laser conversion efficiency, 41.25 W/m2 collection efficiency, and 7.64% slope efficiency, which are 1.24, 1.27, and 1.11 times, respectively, higher than previous records by pumping a single 4.5 mm diameter, 35 mm length 0.1 at.%Cr:1.0 at.%Nd:YAG ceramic laser rod. The three-rod Ce:Nd:YAG solar laser also provided 2.13, 2.25 and 1.50 times enhancements in solar-to-laser conversion efficiency, collection efficiency, and slope efficiency, respectively, as compared to previous records by pumping three 3.0 mm diameter, 25 mm length 1.0 at.% Nd:YAG rods within the same single conical pump cavity.
KW - Ce:Nd:YAG
KW - Laser efficiency
KW - Laser emission
KW - Multi-rod
KW - Parabolic mirror
KW - Solar-pumped laser
UR - http://www.scopus.com/inward/record.url?scp=85135917449&partnerID=8YFLogxK
U2 - 10.1016/j.solmat.2022.111921
DO - 10.1016/j.solmat.2022.111921
M3 - Article
AN - SCOPUS:85135917449
SN - 0927-0248
VL - 246
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
M1 - 111921
ER -