Impact Statement:Frequency and polarization are two fundamental properties of electromagnetic waves. The efficient filtering and polarizing of terahertz wave are important for many applic...Show More
Abstract:
The filtering and polarizing of terahertz waves are essential for various terahertz applications. Here, we use two-dimensional (2-D) rectangular subwavelength hole arrays...Show MoreMetadata
Impact Statement:
Frequency and polarization are two fundamental properties of electromagnetic waves. The efficient filtering and polarizing of terahertz wave are important for many applications. Here we use two-dimensional rectangular sub-wavelength hole arrays (SHAs) to achieve efficient terahertz filtering and polarizing. Compared with traditional methods based on metamaterials, the SHAs are easier to realize, and can be developed as efficient terahertz wave filters and polarizers for practices.
Abstract:
The filtering and polarizing of terahertz waves are essential for various terahertz applications. Here, we use two-dimensional (2-D) rectangular subwavelength hole arrays (SHAs) to achieve efficient wave filtering and polarizing in the terahertz region. The transmissive filtering is obtained by exciting the specified resonant modes within the subwavelength holes. With the same basic physics, the elliptic-to-linear and linear-to-elliptic (linear-to-circular) polarization conversions are successfully achieved by properly arranging the 2-D SHAs. Thanks to its easy realizability, these 2-D SHAs can promisingly be developed as efficient terahertz wave filters and polarizers for practices.
Published in: IEEE Photonics Journal ( Volume: 11, Issue: 1, February 2019)
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