Terahertz Parallel-Plate Ladder Waveguide With Highly Confined Guided Modes

In this paper, we introduce a parallel-plate ladder waveguide (PPLWG) for THz waves. The characteristics of the guided modes of this structure which belong to the category of spoof surface plasmons are studied using the generalized multipole technique and its potential applications are discussed. Moreover, the proposed structure is experimentally investigated in a THz time-domain spectroscopy system and a comparison between the calculated and measured amplitude and phase characteristics is given. It is shown that the dominant mode of the PPLWG can be excited by an incident focused beam and a high degree of field confinement in the THz regime can be achieved.

[1]  B. Bocquet,et al.  Corrugated Goubau Lines to Slow Down and Confine THz Waves , 2012, IEEE Transactions on Terahertz Science and Technology.

[2]  Daniel M. Mittleman,et al.  Terahertz multichannel microfluidic sensor based on parallel-plate waveguide resonant cavities , 2011, 2011 International Conference on Infrared, Millimeter, and Terahertz Waves.

[3]  O. Mitrofanov,et al.  Reducing Transmission Losses in Hollow THz Waveguides , 2011, IEEE Transactions on Terahertz Science and Technology.

[4]  Subwavelength lateral confinement of microwave surface waves , 2011 .

[5]  M. Shahabadi,et al.  Parallel-plate ladder waveguide for millimeter-wave and terahertz waveguiding , 2011, 2011 IEEE MTT-S International Microwave Symposium.

[6]  M. Koch,et al.  Terahertz spectroscopy and imaging – Modern techniques and applications , 2011 .

[7]  M. Shahabadi,et al.  Application of the generalized multipole technique to the analysis of a ladder parallel-plate waveguide for terahertz guided-wave applications , 2010 .

[8]  Daru Chen,et al.  A novel low-loss Terahertz waveguide: polymer tube. , 2010, Optics express.

[9]  L Martin-Moreno,et al.  Domino plasmons for subwavelength terahertz circuitry. , 2009, Optics express.

[10]  Tae-In Jeon,et al.  THz surface wave collapse on coated metal surfaces. , 2009, Optics express.

[11]  Dielectric Fibres for Low-Loss Transmission of Millimetre Waves and its Application in Couplers and Splitters , 2009 .

[12]  Daniel M. Mittleman,et al.  An investigation of the lowest-order transverse-electric (TE_1) mode of the parallel-plate waveguide for THz pulse propagation , 2009 .

[13]  Rajind Mendis,et al.  Comparison of the lowest-order transverse-electric (TE1) and transverse-magnetic (TEM) modes of the parallel-plate waveguide for terahertz pulse applications. , 2009, Optics express.

[14]  Derek Abbott,et al.  THz porous fibers: design, fabrication and experimental characterization. , 2009, Optics express.

[15]  Ajay Nahata,et al.  Planar plasmonic terahertz guided-wave devices , 2009, 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference.

[16]  Peter Uhd Jepsen,et al.  Bendable, low-loss Topas fibers for the terahertz frequency range. , 2009, Optics express.

[17]  D. Grischkowsky,et al.  2-D Terahertz Metallic Photonic Crystals in Parallel-Plate Waveguides , 2007, IEEE Transactions on Microwave Theory and Techniques.

[18]  Stefan A Maier,et al.  Terahertz surface plasmon-polariton propagation and focusing on periodically corrugated metal wires. , 2006, Physical review letters.

[19]  Daniel R. Grischkowsky,et al.  THz Zenneck surface wave (THz surface plasmon) propagation on a metal sheet , 2006 .

[20]  Kanglin Wang,et al.  Enhanced coupling of terahertz radiation to cylindrical wire waveguides. , 2006, Optics express.

[21]  Ja-Yu Lu,et al.  Low-loss subwavelength plastic fiber for terahertz waveguiding. , 2005, Optics letters.

[22]  Daniel M. Mittleman,et al.  Metal wires for terahertz wave guiding , 2004, Nature.

[23]  Roshan George,et al.  Hollow polycarbonate waveguides with inner Cu coatings for delivery of terahertz radiation. , 2004, Optics express.

[24]  J. Pendry,et al.  Mimicking Surface Plasmons with Structured Surfaces , 2004, Science.

[25]  I. Park,et al.  Terahertz pulse propagation in plastic photonic crystal fibers , 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

[26]  한해욱.  Terahertz Pulse Propagation in a Plastic Photonic Crystal Fiber , 2001 .

[27]  R. Mendis,et al.  THz interconnect with low-loss and low-group velocity dispersion , 2001, IEEE Microwave and Wireless Components Letters.

[28]  D. Grischkowsky,et al.  Undistorted guided-wave propagation of subpicosecond terahertz pulses. , 2001, Optics letters.

[29]  D. Grischkowsky,et al.  Propagation of ultrawideband short pulses of terahertz radiation through submillimeter-diameter circular waveguides. , 1999, Optics letters.

[30]  C. Hafner.  The generalized multipole technique for computational electromagnetics , 1990 .