抜粋
We have investigated the spatial distribution of the polarization state of a terahertz electromagnetic wave focused by an off-axis parabolic mirror (OPM) in the focal plane. We employed polarization-resolved terahertz time-domain spectroscopy and found that a steep spatial variation in the polarization state appears slightly distant from the focus when a linearly polarized terahertz wave is focused. The spatial variation includes an abrupt change in the polarization state (states change between circular and linear polarizations) within a wavelength. The observed phenomena are confirmed by numerical calculations and are shown to be intrinsic to the reflection from the OPM.
| 元の言語 | English |
|---|---|
| 記事番号 | 052206 |
| ジャーナル | Applied Physics Express |
| 巻 | 9 |
| 発行部数 | 5 |
| DOI | |
| 出版物ステータス | Published - 2016 5 |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
フィンガープリント Spatial polarization variation in terahertz electromagnetic wave focused by off-axis parabolic mirror' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。
これを引用
Takai, M., Shibata, K., Uemoto, M., & Watanabe, S. (2016). Spatial polarization variation in terahertz electromagnetic wave focused by off-axis parabolic mirror. Applied Physics Express, 9(5), [052206]. https://doi.org/10.7567/APEX.9.052206