Title :
Polymer Membranes to Quarter-Wave Match Gaussian Optics
Author :
Surek, J.T. ; Coder, Jason ; Gordon, Josh ; Novotny, David R.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We demonstrate two simple quarter-wave matches designed in the WR10 band that reduce peak reflected power by 20 and 25 dB near the match frequencies by use of membrane layers on high-density polyethylene (HDPE)-air interfaces. Polytetrafluoroethylene (PTFE)-based membranes that are expanded by regular air voids are layered upon a solid HDPE slab by use of spray adhesive. S-parameter measurements with and without these layers demonstrate the improved power match with two to three membrane layers applied.
Keywords :
S-parameters; adhesives; membranes; optical polymers; slabs; HDPE-air interfaces; PTFE-based membranes; S-parameter measurements; WR10 band; high-density polyethylene; membrane layers; polymer membranes; polytetrafluoroethylene; quarter-wave match Gaussian optics; regular air voids; solid HDPE slab; spray adhesive; Biomembranes; Indexes; Lenses; Optical surface waves; Slabs; Spectroscopy; Index matching; millimeter-wave optics; standing waves; terahertz (THz) optics;
Journal_Title :
Terahertz Science and Technology, IEEE Transactions on
DOI :
10.1109/TTHZ.2012.2236607
