Planar THz quasioptics
- 9 August 2004
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 85 (6), 884-886
- https://doi.org/10.1063/1.1781357
Abstract
Two-dimensional (2D) quasioptical elements are demonstrated as guiding structures in the THz frequency regime. A planar polyethylene lens is incorporated in a parallel metal plate structure and is shown to focus guided THz radiation to a spot comparable to that expected for a three-dimensional (3D) optical element in free space. A 2D double-slit aperture is also demonstrated to diffract the incoming THz beam as expected for 3D. The spatial resolution of the measurement techniques employed is illustrated by the sharpness of the measured diffraction pattern.Keywords
This publication has 9 references indexed in Scilit:
- Parallel plate THz transmitterApplied Physics Letters, 2004
- Spot size, depth-of-focus, and diffraction ring intensity formulas for truncated Gaussian beamsApplied Optics, 2004
- A THz transverse electromagnetic mode two-dimensional interconnect layer incorporating quasi-opticsApplied Physics Letters, 2003
- Terahertz beam propagation measured through three-dimensional amplitude profile determinationJournal of the Optical Society of America B, 2003
- THz interconnect with low-loss and low-group velocity dispersionIEEE Microwave and Wireless Components Letters, 2001
- Undistorted guided-wave propagation of subpicosecond terahertz pulsesOptics Letters, 2001
- Optoelectronic characterization of transmission lines and waveguides by terahertz time-domain spectroscopyIEEE Journal of Selected Topics in Quantum Electronics, 2000
- Experimental investigation of a quasi-optical slab resonatorIEEE Microwave and Guided Wave Letters, 1993
- The far infrared optical constants of polyethyleneInfrared Physics, 1990