Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09%
A novel total internal reflection solar end-pumped laser system has been introduced for the first time, aimed at enhancing the solar-to-laser conversion efficiency. Utilizing a conical solid or cavity reflector, this system refocuses sunlight from a 0.2818 <inline-formula><math display=&quo...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-07-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/18/15/4033 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849405490714378240 |
|---|---|
| author | Lin Wang Haiyang Zhang Dário Garcia Weichen Xu Changming Zhao Anran Guo |
| author_facet | Lin Wang Haiyang Zhang Dário Garcia Weichen Xu Changming Zhao Anran Guo |
| author_sort | Lin Wang |
| collection | DOAJ |
| description | A novel total internal reflection solar end-pumped laser system has been introduced for the first time, aimed at enhancing the solar-to-laser conversion efficiency. Utilizing a conical solid or cavity reflector, this system refocuses sunlight from a 0.2818 <inline-formula><math display="inline"><semantics><msup><mrow><mo>m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula> parabolic mirror into a single Ce (0.05 at.%): Nd (1 at.%): YAG crystal rod, measuring 4 mm in diameter and 10 mm in length, thereby promoting total internal reflection and extending the pumping path. Simulation results indicate that under the same solar input power conditions (249.05 W), the conversion efficiencies of the conical solid reflector and cavity reflector systems are 1.2 times and 1.33 times higher than the current highest recorded efficiency of single-rod systems, respectively. At 950 <inline-formula><math display="inline"><semantics><msup><mrow><mo>W/m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula>, the conical reflector reaches 5.48% efficiency, while the cavity reflector attains 6.09%. Their collection efficiencies are 52.03 <inline-formula><math display="inline"><semantics><msup><mrow><mo>W/m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula> and 57.90 <inline-formula><math display="inline"><semantics><msup><mrow><mo>W/m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula>, with slope efficiencies of 6.65% and 7.72%. |
| format | Article |
| id | doaj-art-7e1db07f032a4154b39282f540d08f82 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-7e1db07f032a4154b39282f540d08f822025-08-20T03:36:40ZengMDPI AGEnergies1996-10732025-07-011815403310.3390/en18154033Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09%Lin Wang0Haiyang Zhang1Dário Garcia2Weichen Xu3Changming Zhao4Anran Guo5School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaA novel total internal reflection solar end-pumped laser system has been introduced for the first time, aimed at enhancing the solar-to-laser conversion efficiency. Utilizing a conical solid or cavity reflector, this system refocuses sunlight from a 0.2818 <inline-formula><math display="inline"><semantics><msup><mrow><mo>m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula> parabolic mirror into a single Ce (0.05 at.%): Nd (1 at.%): YAG crystal rod, measuring 4 mm in diameter and 10 mm in length, thereby promoting total internal reflection and extending the pumping path. Simulation results indicate that under the same solar input power conditions (249.05 W), the conversion efficiencies of the conical solid reflector and cavity reflector systems are 1.2 times and 1.33 times higher than the current highest recorded efficiency of single-rod systems, respectively. At 950 <inline-formula><math display="inline"><semantics><msup><mrow><mo>W/m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula>, the conical reflector reaches 5.48% efficiency, while the cavity reflector attains 6.09%. Their collection efficiencies are 52.03 <inline-formula><math display="inline"><semantics><msup><mrow><mo>W/m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula> and 57.90 <inline-formula><math display="inline"><semantics><msup><mrow><mo>W/m</mo></mrow><mrow><mn>2</mn></mrow></msup></semantics></math></inline-formula>, with slope efficiencies of 6.65% and 7.72%.https://www.mdpi.com/1996-1073/18/15/4033solar-pumped laserlaser efficiencytotal internal reflectionparabolic mirror |
| spellingShingle | Lin Wang Haiyang Zhang Dário Garcia Weichen Xu Changming Zhao Anran Guo Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09% Energies solar-pumped laser laser efficiency total internal reflection parabolic mirror |
| title | Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09% |
| title_full | Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09% |
| title_fullStr | Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09% |
| title_full_unstemmed | Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09% |
| title_short | Total Internal Reflection End-Pumped Solar Laser with the Solar-to-Laser Conversion Efficiency of 6.09% |
| title_sort | total internal reflection end pumped solar laser with the solar to laser conversion efficiency of 6 09 |
| topic | solar-pumped laser laser efficiency total internal reflection parabolic mirror |
| url | https://www.mdpi.com/1996-1073/18/15/4033 |
| work_keys_str_mv | AT linwang totalinternalreflectionendpumpedsolarlaserwiththesolartolaserconversionefficiencyof609 AT haiyangzhang totalinternalreflectionendpumpedsolarlaserwiththesolartolaserconversionefficiencyof609 AT dariogarcia totalinternalreflectionendpumpedsolarlaserwiththesolartolaserconversionefficiencyof609 AT weichenxu totalinternalreflectionendpumpedsolarlaserwiththesolartolaserconversionefficiencyof609 AT changmingzhao totalinternalreflectionendpumpedsolarlaserwiththesolartolaserconversionefficiencyof609 AT anranguo totalinternalreflectionendpumpedsolarlaserwiththesolartolaserconversionefficiencyof609 |