Characterization of terahertz field confinement at the end of a tapered metal wire waveguide

Astley, Victoria; Mendis, Rajind; Mittleman, Daniel M.

doi:10.1063/1.3186065

Cited by 54 publications

(24 citation statements)

References 27 publications

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“…The authors map the field at the end of two different wire waveguides, one with a flat end, and the second with a tapered end [101]. Figure 19 shows the z-component of the electric near-field, parallel to the wire, at its apex along the x-direction, perpendicular to the wire axis.…”

Section: Plasmonics On a Flat Surfacementioning

confidence: 99%

Review of Near-Field Terahertz Measurement Methods and Their Applications

Adam

2011

J Infrared Milli Terahz Waves

202

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In the last decades, many research teams working at Terahertz frequencies focused their efforts on surpassing the diffraction limit. Numerous techniques have been investigated, combining methods existing at optic wavelength with THz system such as Time Domain Spectroscopy. The actual development led on one side to a resolution as high as λ/3000 and one the other side to a video-rate recording. The purpose of this paper is to give an overview of the history of the field, to describe the different approaches, to give examples of existing applications and to draw the perspective for this research area.

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Section: Plasmonics On a Flat Surfacementioning

confidence: 99%

Review of Near-Field Terahertz Measurement Methods and Their Applications

Adam

2011

J Infrared Milli Terahz Waves

202

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“…gradual narrowing of a waveguide towards one end [15][16][17][18][19][20][21][22][23][24][25][26] . Field confinement at the end of a tapered metal wire waveguide was demonstrated experimentally 4,[27][28][29] .…”

Section: Introductionmentioning

confidence: 99%

Plasmon spectrum and plasmon-mediated energy transfer in a multiconnected geometry

Shan

Mishchenko²,

Raǐkh

2016

Phys. Rev. B

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Surface plasmon spectrum of a metallic hyperbola can be found analytically with the separation of variables in elliptic coordinates. The spectrum consists of two branches: symmetric, low-frequency branch, ω < ω0/ √ 2, and antisymmetric high-frequency branch, ω > ω0/ √ 2, where ω0 is the bulk plasmon frequency. The frequency width of the plasmon band increases with decreasing the angle between the asymptotes of the hyperbola. For the simplest multi-connected geometry of two hyperbolas separated by an air spacer the plasmon spectrum contains two low-frequency branches and two high-frequency branches. Most remarkably, the lower of two low-frequency branches exists at ω → 0, i.e., unlike a single hyperbola, it is "thresholdless." We study how the complex structure of the plasmon spectrum affects the energy transfer between two emitters located on the surface of the same hyperbola and on the surfaces of different hyperbolas.

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“…Similarly, in [514] a SWW of diameter d = 2a = 500 µm is tapered to a tip of 20 µm of diameter, obtaining that the E-field is confined in a radius one order of magnitude less than for the conventional thick SWW and two orders of magnitude less than free space. Specifically, near the tip, the Full Width at Half Maximum (FWHM) of the E-field is located at r = 30 µm.…”

Section: Surface and Plasmonic Waveguidesmentioning

confidence: 97%

“…Moreover, due to the exponential grow of losses as a decreases, and the foreseeable manufacturing complexity, DCSWW designs with radius between a = 5 µm and a = 20 µm are preferred. As a data of interest, successful experiments with small radius SWW/DCSWW (a = 10 µm to a = 30 µm) [507], [513], [514], and manufacturing of DCSWW with conductor radius ranging from a = 0.4 µm to a = 15 µm and coating thickness ranging t from t = 2 µm to t = 15 µm have been reported in the last years [589].…”

Section: Solution A: Reduction Of the Wire Radius 421 Strict Monomomentioning

confidence: 99%

“…However, although experimental tapers with the SWW have been reported [508], [513], [514], may be possible that the restrictions in the manufacturing process, or even in the application, make this impossible. Therefore, since this is a general study, as in the case of the previous section, several solutions are given in such way that, given certain design restrictions, several suitable options are available.…”

Section: Sww-dcsww Transitionsmentioning

confidence: 99%

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Analysis and design of efficient passive components for the millimeter-wave and THz bands

Verdú¹,

Antonio²

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To my parents, brother and sister."Success is peace of mind which is a direct result of self-satisfaction in knowing you made the effort to become the best of which you are capable."Jonh Wooden "Lo que con mucho trabajo se adquiere, más se ama." Aristóteles AgradecimientosLa realización de esta tesis ha implicado no pocos años de trabajo y esfuerzo. Durante este importante periodo de mi vida han sido muchas las personas han estado a mi lado, brindándome su apoyo, ayuda, cariño y amor. Ya sea de una forma u otra, todas estas personas han contribuido a que este trabajo haya sido posible dando como fruto esta tesis. A todos ellos, me gustaría dedicarles un agradecimiento muy especial de todo corazón.Sin duda alguna, debo dar las gracias en primer lugar a mi director de tesis Mariano Baquero. Mariano, has sido un padre para mí profesionalmente hablando. Te conocí como alumno en las clases de Microondas, en las cuales me abriste la puerta a un conocimiento que me fascinó.Recuerdo perfectamente cuando fui a verte para preguntarte si podrías dirigirme el Proyecto Final de Carrera, y desde ese año 2009 hemos estado trabajando juntos. Quiero agradecerte no sólo haberme dado la oportunidad de trabajar en cada momento en elárea que más me ha gustado, sino el haberte preocupado por mí a nivel personal, velando siempre por mis intereses, ayudándome a desarrollarme personal y profesionalmente. Extiendo en este sentido mi agradecimiento a Miguel Ferrando. Si Mariano es el padre, tu serías sin duda el abuelo. Sin tu ayuda, la beca para la realización de esta tesis y los proyectos que han respaldado la misma no hubieran sido posibles. Tu esfuerzo ha permitido que el Grupo de Radiación Electromagnética (GRE) esté hoy dónde esta y que sus miembros nos beneficiemos de un entorno de trabajo excelente, produciendo trabajo de calidad. Debo agradecerte también tus siempre innovadoras ideas, algunas de las cuales se han convertido en una realidad plasmada en esta tesis.Una mención especial merece Daniel Sánchez. Dani, aunque tu nombre no figure como co-director bien sabes que podría estarlo. Jamás podré agradecerte lo suficiente la ayuda que me has prestado. Cuántas horas dedicadas a enseñarme en un sin fin de aspectos sin esperar nada a cambio, apoyándome también en los momentos difíciles, siempre presentes en una tesis. Bien sabes que lo mismo has hecho con cada uno tus compañeros, por eso eres el pilar del GRE Dani.Otra persona a la que estoy muy agradecido es a Vicente Boria. Tu activa colaboración en la dirección de esta tesis ha sido indispensable para la consecución de los resultados más relevantes de la misma. Sugeriste muy acertadamente una estancia en la Queen's University of Belfast, y me abriste la puerta a nuevas líneas de investigación en las cuales seguimos trabajando actualmente. Gracias por preocuparte por mi a nivel profesional y personal.En elámbito anterior, extiendo los agradecimientos a todo el GRE. It is also very important for me to acknowledge Prof. Vince Fusco. Thank you for hosting me in your group in Belfast ...

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Characterization of terahertz field confinement at the end of a tapered metal wire waveguide

Cited by 54 publications

References 27 publications

Review of Near-Field Terahertz Measurement Methods and Their Applications

Review of Near-Field Terahertz Measurement Methods and Their Applications

Plasmon spectrum and plasmon-mediated energy transfer in a multiconnected geometry

Analysis and design of efficient passive components for the millimeter-wave and THz bands

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