Editing Surface wave

{{Short description|Physical phenomenon}}
[[Image:Diving grebe.jpg|A diving [[grebe]] creates surface waves.|thumb]]

In [[physics]], a '''surface wave''' is a [[mechanical wave]] that propagates along the [[Interface (chemistry)|interface]] between differing media.  A common example is [[gravity wave]]s along the surface of liquids, such as ocean waves.  Gravity waves can also occur within liquids, at the interface between two [[fluid]]s with different densities.  Elastic surface waves can travel along the surface of solids, such as ''[[Rayleigh wave|Rayleigh]]'' or ''[[Love wave|Love]]'' waves.  [[Electromagnetic wave]]s can also propagate as "surface waves" in that they can be guided along with a [[refractive index]] [[gradient]] or along an interface between two media having different dielectric constants. In [[radio]] [[transmission (telecommunications)|transmission]], a ''[[ground wave]]'' is a guided wave that propagates close to the surface of the [[Earth]].<ref>{{FS1037C MS188}}</ref>

==Mechanical waves==
{{further|Gravity wave}}

In [[seismology]], several types of surface waves are encountered. Surface waves, in this mechanical sense, are commonly known as either ''[[Love wave]]s'' (L waves) or ''[[Rayleigh wave]]s''. A [[seismic wave]] is a wave that ''travels through the Earth, often as the result of an earthquake or explosion.'' Love waves have [[transversal wave|transverse]] motion (movement is perpendicular to the direction of travel, like light waves), whereas Rayleigh waves have both [[longitudinal wave|longitudinal]] (movement parallel to the direction of travel, like sound waves) and transverse motion. Seismic waves are studied by seismologists and measured by a seismograph or seismometer. Surface waves span a wide frequency range, and the period of waves that are most damaging is usually 10 seconds or longer. Surface waves can travel around the globe many times from the largest earthquakes. Surface waves are caused when P waves and S waves come to the surface.

<!-- The term "surface wave" can describe waves over an ocean, even when they are approximated by [[Airy function]]s and are more properly called [[creeping wave]]s. << Neither of the linked articles mentions water waves or (mechanical) surface waves. Is this really a helpful reference? -->Examples are the [[wave]]s at the surface of [[water]] and [[air]] ([[ocean surface wave]]s).  Another example is [[internal wave]]s, which can be transmitted along the interface of two water masses of different densities.

In theory of [[Hearing|hearing physiology]], the traveling wave (TW) of [[Von Bekesy]], resulted from an acoustic surface wave of the [[basilar membrane]] into the [[cochlear duct]]. His theory purported to explain every feature of the auditory sensation owing to these passive mechanical phenomena. Jozef Zwislocki, and later [[David Kemp (physicist)|David Kemp]], showed that that is unrealistic and that active feedback is necessary.

==Electromagnetic waves==
{{further|Ground wave}}

''[[Ground wave]]s'' are [[radio waves]] [[Radio propagation|propagating]] parallel to and adjacent to the surface of the Earth, following the [[curvature of the Earth]].  This radiative ground wave is known as '''Norton surface wave''', or more properly '''Norton ground wave''', because ground waves in radio propagation are not confined to the surface.

Another type of surface wave is the non-radiative, bound-mode ''[[Zenneck wave|Zenneck surface wave]]'' or ''Zenneck–Sommerfeld surface wave''.<ref>[https://archive.org/download/bstj16-1-35/bstj16-1-35_text.pdf The Physical Reality of Zenneck's Surface Wave].</ref><ref name="Hill-Wait_1951">Hill, D. A., and J. R. Wait (1978), Excitation of the Zenneck surface wave by a vertical aperture, Radio Sci., 13(6), 969–977, {{doi|10.1029/RS013i006p00969}}.</ref><ref name="Goubau">Goubau, G., [http://www.nedyn.com/Goubau_1951-X.pdf "Über die Zennecksche Bodenwelle," (On the Zenneck Surface Wave)], ''Zeitschrift für Angewandte Physik'', Vol. 3, 1951, Nrs. 3/4, pp. 103–107.</ref><ref name="Barlow-Brown_1962-II">{{cite book |last1=Barlow |first1=H. |last2=Brown |first2=J. |title=Radio Surface Waves |date=1962 |publisher=Oxford University Press |location=London |pages=10–12 |language=en |chapter= II}}</ref><ref name="Corum_2016">Corum, K. L., M. W. Miller, J. F. Corum, "[http://rexresearch.com/corumzenneck/texzon.pdf Surface Waves and the Crucial Propagation Experiment],” Proceedings of the 2016 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS 2016), Baylor University, Waco, TX, March 31-April 1, 2016, IEEE, MTT-S, {{ISBN|9781509027569}}.</ref> The earth has one refractive index and the atmosphere has another, thus constituting an [[Interface (chemistry)|interface]] that supports the guided Zenneck wave's transmission. Other types of surface wave are the '''trapped surface wave''',<ref name="Wait_1957">Wait, James, "[http://nvlpubs.nist.gov/nistpubs/jres/59/jresv59n6p365_A1b.pdf Excitation of Surface Waves on Conducting, Stratified, Dielectric-Clad, and Corrugated Surfaces]," ''Journal of Research of the National Bureau of Standards'' Vol. 59, No.6, December 1957.</ref> the '''gliding wave''' and '''[[Dyakonov surface waves]]''' (DSW) propagating at the interface of transparent materials with different symmetry.<ref name=DSW>{{cite journal| last = Dyakonov| first = M. I.| title = New type of electromagnetic wave propagating at an interface| journal =Soviet Physics JETP| volume =67|issue =4| pages =714|date =April 1988| bibcode = 1988JETP...67..714D|url = http://jetp.ac.ru/cgi-bin/e/index/e/67/4/p714?a=list}}</ref><ref>{{cite journal|author=Takayama, O.|title=Dyakonov Surface Waves: A Review. |journal=Electromagnetics|volume=28 |pages=126–145 |date=2008|last2=Crasovan, L. C. |first2=Johansen, S. K. |last3=Mihalache, D |first3=Artigas, D. |last4=Torner, L. |issue=3 |doi=10.1080/02726340801921403 |s2cid=121726611 }}</ref><ref>{{cite journal|author=Takayama, O.|title=Observation of Dyakonov surface waves. |journal=Physical Review Letters|volume=102 |pages=043903 |date=2009|last2=Crasovan, L. C. |first2=Artigas, D. |last3=Torner, L. |issue=4 |doi=10.1103/PhysRevLett.102.043903 |pmid=19257419 |bibcode=2009PhRvL.102d3903T |s2cid=14540394 }}</ref><ref>{{cite journal|author=Takayama, O.|title=Lossless directional guiding of light in dielectric nanosheets using Dyakonov surface waves. |journal=Nature Nanotechnology|volume=9 |pages=419–424 |date=2014|last2=Artigas, D. |first2=Torner, L. |issue=6 |doi=10.1038/nnano.2014.90 |pmid=24859812 |bibcode=2014NatNa...9..419T }}</ref>  Apart from these, various types of surface waves have been studied for optical wavelengths.<ref>{{cite journal|author=Takayama, O.|title=Photonic surface waves on metamaterial interfaces. |journal=Journal of Physics: Condensed Matter|volume=29 |pages=463001 |date=2017|last2= Bogdanov, A. A. |first2=Lavrinenko, A. V. |issue=46 |doi=10.1088/1361-648X/aa8bdd |pmid=29053474 |bibcode=2017JPCM...29T3001T }}</ref>

===Microwave field theory===
Within microwave field theory, the interface of a dielectric and conductor supports "surface wave transmission". Surface waves have been studied as part of [[transmission line]]s and some may be considered as [[single-wire transmission line]]s.

Characteristics and utilizations of the electrical surface wave phenomenon include:
* The [[field (physics)|field]] components of the wave diminish with distance from the interface.
* Electromagnetic energy is not converted from the surface wave field to another form of energy (except in leaky or lossy surface waves)<ref>{{cite journal| last1= Liu |first1= Hsuan-Hao |last2=Chang |first2=Hung-Chun |title=Leaky Surface Plasmon Polariton Modes at an Interface Between Metal and Uniaxially Anisotropic Materials. |journal=IEEE Photonics Journal |volume=5 |issue=6 |pages=4800806 |date=2013 | bibcode=2013IPhoJ...500806L |doi=10.1109/JPHOT.2013.2288298 | doi-access=free }}</ref> such that the wave does not transmit power normal to the interface, i.e. it is evanescent along that dimension.<ref>Collin, R. E., ''Field Theory of Guided Waves'', Chapter 11 "Surface Waveguides". New York: Wiley-IEEE Press, 1990.</ref> 
* In [[coaxial cable]] in addition to the TEM mode there also exists a transverse-magnetic (TM) mode<ref>{{cite web|url=http://www.corridor.biz/FullArticle.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://www.corridor.biz/FullArticle.pdf |archive-date=2022-10-09 |url-status=live|title=(TM) mode|website=corridor.biz|access-date=4 April 2018}}</ref> which propagates as a surface wave in the region around the central conductor. For coax of common impedance this mode is effectively suppressed but in high impedance coax and on a single central conductor without any outer shield, low attenuation and very broadband propagation is supported. Transmission line operation in this mode is called [[single-wire transmission line|E-Line]].

===Surface plasmon polariton===

[[File:SPP silver-air interface 10um.gif|thumb|255px|right|The [[Electric field|E-field]] of a [[surface plasmon polariton]] at a silver–air interface, at a frequency corresponding to a free-space wavelength of 10μm. At this frequency, the silver behaves approximately as a [[perfect electric conductor]], and the SPP is called a Sommerfeld–Zenneck wave, with almost the same wavelength as the free-space wavelength. <!--The permittivity of silver at this frequency is {{nowrap|(−2700 + 1400i)}}. The picture is {{nowrap|(0.6 × 10μm)}} across horizontally.-->]]

The [[surface plasmon polariton]] (SPP) is an [[electromagnetic wave|electromagnetic surface wave]] that can travel along an interface between two media with different dielectric constants. It exists under the condition that the [[permittivity]] of one of the materials <ref name="Corum_2016"/> forming the interface is negative, while the other one is positive, as is the case for the interface between air and a lossy conducting medium below the [[plasma frequency]]. The wave propagates parallel to the interface and decays exponentially vertical to it, a property called evanescence. Since the wave is on the boundary of a lossy conductor and a second medium, these oscillations can be sensitive to changes to the boundary, such as the adsorption of molecules by the conducting surface.<ref>{{cite journal|author=S. Zeng|title=Nanomaterials enhanced surface plasmon resonance for biological and chemical sensing applications |journal=Chemical Society Reviews|volume=43 |pages=3426–3452 |date=2014|doi=10.1039/C3CS60479A|last2= Baillargeat|first2= Dominique|last3=Ho|first3=Ho-Pui|last4=Yong|first4=Ken-Tye |pmid=24549396 |issue=10 |hdl=10220/18851 |url=https://www.researchgate.net/publication/260252810|hdl-access=free}}</ref>

===Sommerfeld–Zenneck surface wave===

The [[Surface plasmon polariton#Animations|Sommerfeld–Zenneck wave]] or [[Zenneck wave]] is a non-radiative guided [[electromagnetic wave]] that is supported by a planar or spherical interface between two homogeneous media having different dielectric constants. This surface wave propagates parallel to the interface and decays exponentially vertical to it, a property known as evanescence. It exists under the condition that the [[permittivity]] of one of the materials forming the interface is negative, while the other one is positive, as for example the interface between air and a lossy conducting medium such as the terrestrial transmission line, below the [[plasma frequency]]. Its electric field strength falls off at a rate of e<sup>-αd</sup>/√d in the direction of propagation along the interface due to two-dimensional geometrical field spreading at a rate of 1/√d, in combination with a frequency-dependent exponential attenuation (α), which is the terrestrial transmission line dissipation, where α depends on the medium’s conductivity. Arising from original analysis by [[Arnold Sommerfeld]] and [[Jonathan Zenneck]] of the problem of wave propagation over a lossy earth, it exists as an exact solution to [[Maxwell's equations]].<ref name="Barlow-Brown_1962">{{cite book |last1=Barlow |first1=H. |last2=Brown |first2=J. |title=Radio Surface Waves |date=1962 |publisher=Oxford University Press |location=London |pages=v, vii |language=en }}</ref> The Zenneck surface wave, which is a non-radiating guided-wave mode, can be derived by employing the Hankel transform of a radial ground current associated with a realistic terrestrial Zenneck surface wave source.<ref name="Corum_2016" /> Sommerfeld-Zenneck surface waves predict that the energy decays as R<sup>−1</sup> because the energy distributes over the circumference of a circle and not the surface of a sphere. Evidence does not show that in radio space wave propagation, Sommerfeld-Zenneck surfaces waves are a mode of propagation as the path-loss exponent is generally between 20&nbsp;dB/dec and 40&nbsp;dB/dec.

==See also==
* [[Seismic wave]]s
* [[Seismic communication]]
* [[P-wave]]s
* [[S-wave]]s
* [[Surface acoustic wave]]
* [[Sky wave]]s, the primary means of HF transmission
* [[Surface plasmon]], a longitudinal charge density wave along the interface of conducting and dielectric mediums
* [[Surface-wave-sustained mode]], a propagation of electromagnetic surface waves.
* [[Evanescent wave]]s and [[evanescent wave coupling]]
* [[Ocean surface wave]]s, [[internal wave]]s and [[Crest (physics)|crests]], [[Dispersion (water waves)|dispersion]], and [[freak wave]]s
* [[Love wave]] and [[Rayleigh wave|Rayleigh–Lamb wave]]
* [[Gravity wave]]s, occurs at certain natural interfaces (e.g. the atmosphere and ocean)
* [[Stoneley wave]]
* [[Scholte wave]]
* [[Dyakonov surface wave]]
;People
*[[Arnold Sommerfeld#Articles|Arnold Sommerfeld]] – published a mathematical treatise on the ''Zenneck wave''
*[[Jonathan Zenneck#Articles|Jonathan Zenneck]] – Pupil of Sommerfeld; Wireless pioneer; developed the ''Zenneck wave''
*[[John Stone Stone]] – Wireless pioneer; produced theories on radio propagation
;Other
* [[Ground constants]], the electrical parameters of earth
* [[Near and far field]], the radiated field that is within one quarter of a wavelength of the diffracting edge or the antenna and beyond.
* [[Skin effect]], the tendency of an alternating electric current to distribute itself within a conductor so that the current density near the surface of the conductor is greater than that at its core.
* [[Surface wave inversion]]
* [[Green's function]], a function used to solve inhomogeneous differential equations subject to boundary conditions.

==References==
{{Reflist}}

==Further reading==

===Standards and doctrines===
* "''[http://www.atis.org/glossary/definition.aspx?id=999 Surface wave] {{Webarchive|url=https://web.archive.org/web/20170903205750/http://www.atis.org/glossary/definition.aspx?id=999 |date=2017-09-03 }}''". Telecom Glossary 2000, ATIS Committee T1A1, Performance and Signal Processing, T1.523–2001.
* "''[http://www.its.bldrdoc.gov/fs-1037/dir-035/_5194.htm Surface wave]''", [[Federal Standard 1037C]].
* "''Surface wave''", [[MIL-STD-188]]
* "''[http://permanent.access.gpo.gov/websites/dodandmilitaryejournals/www.doctrine.quantico.usmc.mil/signpubs/r3403e.pdf Multi-service tactics, techniques, and procedures for the High-Frequency Automatic Link Establishment (HF-ALE)]: FM 6-02.74; MCRP 3–40.3E; NTTP 6-02.6; AFTTP(I) 3-2.48; COMDTINST M2000.7''" Sept., 2003.

===Books===
* Barlow, H.M., and Brown, J., "Radio Surface Waves", Oxford University Press 1962.
* Budden, K. G., "''Radio waves in the ionosphere; the mathematical theory of the reflection of radio waves from stratified ionised layers''".  Cambridge, Eng., University Press, 1961. LCCN 61016040 /L/r85
* Budden, K. G., "''The wave-guide mode theory of wave propagation''". London, Logos Press; Englewood Cliffs, N.J., Prentice-Hall, c1961. LCCN 62002870 /L
* Budden, K. G., "'' The propagation of radio waves : the theory of radio waves of low power in the ionosphere and magnetosphere''".  Cambridge (Cambridgeshire); New York : Cambridge University Press, 1985. {{ISBN|0-521-25461-2}} LCCN 84028498
* Collin, R. E., "''Field Theory of Guided Waves''". New York: Wiley-IEEE Press, 1990.
* Foti, S., Lai, C.G., Rix, G.J., and Strobbia, C., "“Surface Wave Methods for Near-Surface Site Characterization”", CRC Press, Boca Raton, Florida (USA), 487 pp., {{ISBN|9780415678766}}, 2014 <https://www.crcpress.com/product/isbn/9780415678766>
* Sommerfeld, A., "Partial Differential Equations in Physics" (English version), Academic Press Inc., New York 1949, chapter 6 – "Problems of Radio".
* Polo Jr., J. A., Mackay, T. G., and Lakhtakia, A., "''Electromagnetic Surface Waves: A Modern Perspective''". Waltham, MA, USA: Elsevier, 2013 <https://www.elsevier.com/books/electromagnetic-surface-waves/polo/978-0-12-397024-4>.
* Rawer, K.,"''Wave Propagation in the Ionosphere''", Dordrecht, Kluwer Acad.Publ. 1993.
* Sommerfeld, A., "Partial Differential Equations in Physics" (English version), Academic Press Inc., New York 1949, chapter 6 – "Problems of Radio".
* Weiner, Melvin M., "''Monopole antennas''" New York, Marcel Dekker, 2003. {{ISBN|0-8247-0496-7}}
* Wait, J. R., "''Electromagnetic Wave Theory''", New York, Harper and Row, 1985.
* Wait, J. R., "''The Waves in Stratified Media''". New York: Pergamon, 1962.
* Waldron, Richard Arthur, "''Theory of guided electromagnetic waves''". London, New York, Van Nostrand Reinhold, 1970. {{ISBN|0-442-09167-2}} LCCN 69019848 //r86
* Weiner, Melvin M., "''Monopole antennas''" New York, Marcel Dekker, 2003. {{ISBN|0-8247-0496-7}}

===Journals and papers===
;Zenneck, Sommerfeld, Norton, and Goubau
* J. Zenneck, (translators: P. Blanchin, G. Guérard, É. Picot), "''Précis de télégraphie sans fil : complément de l'ouvrage : Les oscillations électromagnétiques et la télégraphie sans fil''",  Paris : Gauthier-Villars, 1911. viii, 385 p. : ill.; 26&nbsp;cm. (''Tr''. "Precisions of wireless telegraphy:  complement of the work:  Electromagnetic oscillations and wireless telegraphy.")
* J. Zenneck, "''Über die Fortpflanzung ebener elektromagnetischer Wellen längs einer ebenen Leiterfläche und ihre Beziehung zur drahtlosen Telegraphie''", [http://onlinelibrary.wiley.com/doi/10.1002/andp.19073281003/abstract Annalen der Physik, vol. 23, pp. 846–866, Sept. 1907]. (''Tr''. "About the propagation of electromagnetic plane waves along a conductor plane and their relationship to wireless telegraphy.")
* J. Zenneck, "''Elektromagnetische Schwingungen und drahtlose Telegraphie''", gart, F. Enke, 1905. xxvii, 1019 p. : ill.; 24&nbsp;cm. (Tr''. "Electromagnetic oscillations and wireless telegraphy.")
* J. Zenneck, (translator: A.E. Seelig) "''Wireless telegraphy,''", New York [etc.] McGraw-Hill Book Company, inc., 1st ed. 1915. xx, 443 p. illus., diagrs. 24 cm. LCCN 15024534 (''ed''. "Bibliography and notes on theory" pp. 408–428.)
* A. Sommerfeld, "''Über die Fortpflanzung elektrodynamischer Wellen längs eines Drahtes''", [http://onlinelibrary.wiley.com/doi/10.1002/andp.18993030202/abstract Ann. der Physik und Chemie, vol. 67, pp. 233–290, Dec 1899]. (''Tr''. "Propagation of electro-dynamic waves along a cylindric conductor.")
* A. Sommerfeld, "''Über die Ausbreitung der Wellen in der drahtlosen Telegraphie''", [https://dx.doi.org/10.1002/andp.19093330402 Annalen der Physik, Vol. 28, pp. 665–736, March  1909].  (''Tr''. "About the Propagation of waves in wireless telegraphy.")
* A. Sommerfeld, "''Propagation of waves in wireless telegraphy''," Ann. Phys., vol. 81, pp. 1367–1153, 1926.
* K. A. Norton, "''The propagation of radio waves over the surface of the earth and in the upper atmosphere''," Proc. IRE, vol. 24, pp. 1367–1387, 1936.
* K. A. Norton, "''The calculations of ground wave field intensity over a finitely conducting spherical earth''," Proc. IRE, vol. 29, pp. 623–639, 1941.
* G. Goubau, "''Surface waves and their application to transmission lines''," J. Appl. Phys., vol. 21, pp.&nbsp;1119–1128; November,1950.
* G. Goubau, “Über die Zennecksche Bodenwelle,” (''Tr''.[http://www.nedyn.com/Goubau_1951-X.pdf "On the Zenneck Surface Wave."]), Zeitschrift für Angewandte Physik, Vol. 3, 1951, Nrs. 3/4, pp. 103–107.

;Wait
* Wait, J. R., "''Lateral Waves and the Pioneering Research of the Late Kenneth A Norton''".
* Wait, J. R., and D. A. Hill, "''Excitation of the HF surface wave by vertical and horizontal apertures''". Radio Science, 14, 1979, pp 767–780.
* Wait, J. R., and D. A. Hill, "''Excitation of the Zenneck Surface Wave by a Vertical Aperture''", Radio Science, Vol. 13, No. 6, November–December, 1978, pp. 969–977.
* Wait, J. R., "''A note on surface waves and ground waves''", IEEE Transactions on Antennas and Propagation, Nov 1965. Vol. 13, Issue 6, pp. 996–997 {{ISSN|0096-1973}}
* Wait, J. R., "''The ancient and modern history of EM ground-wave propagation''". IEEE Antennas Propagat. Mag., vol. 40, pp. 7–24, Oct. 1998.
* Wait, J. R., "''Appendix C: On the theory of ground wave propagation over a slightly roughned curved earth''", ''Electromagnetic Probing in Geophysics''. Boulder, CO., Golem, 1971, pp. 37–381.
* Wait, J. R., "''Electromagnetic surface waves''", ''Advances in Radio Research'', 1, New York, Academic Press, 1964, pp. 157–219.

;Others
* R. E. Collin, "''Hertzian Dipole Radiating Over a Lossy Earth or Sea: Some Early and Late 20th-Century Controversies''", Antennas and Propagation Magazine, 46, 2004, pp. 64–79.
* F. J. Zucker, "''Surface wave antennas and surface wave excited arrays''", Antenna Engineering Handbook, 2nd ed., R. C. Johnson and H. Jasik, Eds. New York: McGraw-Hill, 1984.
* Yu. V. Kistovich, "''Possibility of Observing Zenneck Surface Waves in Radiation from a Source with a Small Vertical Aperture''", Soviet Physics Technical Physics, Vol. 34, No.4, April, 1989, pp. 391–394.
* V. I. Baĭbakov, V. N. Datsko, Yu. V. Kistovich, "''Experimental discovery of Zenneck's surface electromagnetic waves''", Sov Phys Uspekhi, 1989, 32 (4), 378–379.
* Corum, K. L. and J. F. Corum, "''The Zenneck Surface Wave''", ''Nikola Tesla, Lightning Observations, and Stationary Waves, Appendix II''. 1994.
* M. J. King  and J. C. Wiltse, "''Surface-Wave Propagation on Coated or Uncoated Metal Wires at Millimeter Wavelengths''". J. Appl. Phys., vol. 21, pp.&nbsp;1119–1128; November,
* M. J. King and J. C. Wiltse, "''Surface-Wave Propagation on a Dielectric Rod of Electric Cross-Section.''" Electronic Communications, Inc., Tirnonium: kld. Sci. Rept.'No. 1, AFCKL Contract No. AF 19(601)-5475; August, 1960.
* T. Kahan and G. Eckart, "''On the Electromagnetic Surface Wave of Sommerfeld''", Phys. Rev. 76, 406–410 (1949).

===Other media===
*  L.A. Ostrovsky (ed.), "''Laboratory modeling and theoretical studies of surface wave modulation by a moving sphere''", m, Oceanic and Atmospheric Research Laboratories, 2002. {{OCLC|50325097}}

==External links==
* [https://feynmanlectures.caltech.edu/I_51.html#Ch51-S4 The Feynman Lectures on Physics: Surface waves]
* Eric W. Weisstein, et al., "''[http://scienceworld.wolfram.com/physics/SurfaceWave.html Surface Wave]''", Eric Weisstein's World of Physics, 2006.
* David Reiss, "''[http://web.mit.edu/redingtn/www/netadv/zenneck.html Electromagnetic surface waves]''". The Net Advance of Physics: Special Reports, No. 1
* Gary Peterson, "''[http://www.tfcbooks.com/articles/tws4.htm Rediscovering the Zenneck wave]''". Feed Line No. 4. (''ed''. reproduction available online at 21st Century Books)
* [http://demonstrations.wolfram.com/3DWaves/ 3D Waves] by Jesse Nochella based on a program by [[Stephen Wolfram]], [[Wolfram Demonstrations Project]].
*{{cite web |last1=Hendry |first1=Janice |title=SURFACE WAVES: WHAT ARE THEY? WHY ARE THEY INTERESTING? |url=https://www.armms.org/media/uploads/1259319847.pdf |website=ARMMS RF & MICROWAVE SOCIETY |publisher=Roke Manor Research Ltd |access-date=24 December 2023 |date=2009}}

{{Telecommunications}}
{{Authority control}}

[[Category:Surface waves| ]]
[[Category:Radio frequency propagation]]
[[Category:Broadcast engineering]]
[[Category:Seismology]]