Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms
Metasurfaces of gold (Au) nanoparticles on a SiO<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>-Si substrate were fabricated for the enhancemen...
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MDPI AG
2020-09-01
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| Online Access: | https://www.mdpi.com/2072-666X/11/9/848 |
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| author | Kanta Mochizuki Mako Sugiura Hirofumi Yogo Stefan Lundgaard Jingwen Hu Soon Hock Ng Yoshiaki Nishijima Saulius Juodkazis Atsushi Sugita |
| author_facet | Kanta Mochizuki Mako Sugiura Hirofumi Yogo Stefan Lundgaard Jingwen Hu Soon Hock Ng Yoshiaki Nishijima Saulius Juodkazis Atsushi Sugita |
| author_sort | Kanta Mochizuki |
| collection | DOAJ |
| description | Metasurfaces of gold (Au) nanoparticles on a SiO<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>-Si substrate were fabricated for the enhancement of second harmonic generation (SHG) using electron beam lithography and lift-off. Triangular Au nanoprisms which are non-centro-symmetric and support second-order nonlinearity were examined for SHG. The thickness of the SiO<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> spacer is shown to be an effective parameter to tune for maximising SHG. Electrical field enhancement at the fundamental wavelength was shown to define the SHG intensity. Numerical modeling of light enhancement was verified by experimental measurements of SHG and reflectivity spectra at the normal incidence. At the plasmonic resonance, SHG is enhanced up to ∼3.5 × 10<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math></inline-formula> times for the optimised conditions. |
| first_indexed | 2024-03-10T16:22:18Z |
| format | Article |
| id | doaj.art-2ff247023454496382a3d2148d408a23 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T16:22:18Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-2ff247023454496382a3d2148d408a232023-11-20T13:31:46ZengMDPI AGMicromachines2072-666X2020-09-0111984810.3390/mi11090848Second Harmonic Generation from Phase-Engineered Metasurfaces of NanoprismsKanta Mochizuki0Mako Sugiura1Hirofumi Yogo2Stefan Lundgaard3Jingwen Hu4Soon Hock Ng5Yoshiaki Nishijima6Saulius Juodkazis7Atsushi Sugita8Department of Applied Chemistry and Biochemical Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka 432-8561, JapanDepartment of Applied Chemistry and Biochemical Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka 432-8561, JapanDepartment of Applied Chemistry and Biochemical Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka 432-8561, JapanOptical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM), School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaOptical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM), School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaOptical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM), School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaDepartment of Physics, Electrical and Computer Engineering, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, JapanOptical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM), School of Science, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaDepartment of Applied Chemistry and Biochemical Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka 432-8561, JapanMetasurfaces of gold (Au) nanoparticles on a SiO<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>-Si substrate were fabricated for the enhancement of second harmonic generation (SHG) using electron beam lithography and lift-off. Triangular Au nanoprisms which are non-centro-symmetric and support second-order nonlinearity were examined for SHG. The thickness of the SiO<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> spacer is shown to be an effective parameter to tune for maximising SHG. Electrical field enhancement at the fundamental wavelength was shown to define the SHG intensity. Numerical modeling of light enhancement was verified by experimental measurements of SHG and reflectivity spectra at the normal incidence. At the plasmonic resonance, SHG is enhanced up to ∼3.5 × 10<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math></inline-formula> times for the optimised conditions.https://www.mdpi.com/2072-666X/11/9/848metasurfacessecond harmonic generationphase controlfinite difference time domain |
| spellingShingle | Kanta Mochizuki Mako Sugiura Hirofumi Yogo Stefan Lundgaard Jingwen Hu Soon Hock Ng Yoshiaki Nishijima Saulius Juodkazis Atsushi Sugita Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms Micromachines metasurfaces second harmonic generation phase control finite difference time domain |
| title | Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms |
| title_full | Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms |
| title_fullStr | Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms |
| title_full_unstemmed | Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms |
| title_short | Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms |
| title_sort | second harmonic generation from phase engineered metasurfaces of nanoprisms |
| topic | metasurfaces second harmonic generation phase control finite difference time domain |
| url | https://www.mdpi.com/2072-666X/11/9/848 |
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