| 학회 | 한국공업화학회 |
| 학술대회 | 2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO)) |
| 권호 | 22권 1호 |
| 발표분야 | 무기재료_포스터 |
| 제목 | Polarization-sensitive tunable perfect absorber in VIS-NIR regimes |
| 초록 | Many Metamaterial absorbers [1-3] have been designed with discrete resonant wavelengths, but a broad-range absorber [4-5] is demanded for practical applications. Extensive research on metamaterial perfect absorbers has been conducted by engineering structural parameters and polarization sensitive broadband perfect absorbers [6] present the possibility that light absorption can be actively controlled. In this work, a polarization-sensitive perfect absorber based on plasmonic gratings is introduced. The absorption can be actively controlled by adjusting the polarization angle, and reaches maximum when the polarization is TE mode in broad-range wavelength. The experimental results show over 90% absorption can be achieved and agree well with simulation in both modes. [1] Plasmonics 12, 339-343 (2017). [2] Opt. Express 16, 15431-15438 (2008). [3] J. Appl. Phys. 114, 083106 (2013). [4] Opt. Express 19, 15221-15228 (2011). [5] Opt. Lett. 40, 2592-2595 (2015). [6] Sci. Rep. 7, 2611 (2017). |
| 저자 | 이다솔, 노준석 |
| 소속 | 포항공과대 |
| 키워드 | Metamaterial-based perfect absorber; broadband absorber; plasmonic grating; transverse electric mode; transverse magnetic mode |
