Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams

D. O'Dwyer; C. Phelan; Y. Rakovich; T. Cizmar; K. Dholakia; J. F. Donegan; J. G. Lunney

doi:10.1117/12.804258

Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams

D. O'Dwyer, C. Phelan, Y. Rakovich, T. Cizmar, K. Dholakia, J. F. Donegan, J. G. Lunney

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Internal conical refraction leads to the formation of zero (J₀) and first order (J₁) Bessel beams in superposition. The (J ₀) beam retains the input circular polarisation and the (J ₁) has opposite polarisation but with a single phase change around the beam axis giving it h cross h sign optical angular momentum per photon. This results in the conical beam having 1/2 h cross h sign net optical angular momentum per photon. This provides a simple system in which a beam of 0, 1/2 and h cross sign optical angular momentum can be easily generated and selected with use of only a circular polariser. In the far field the characteristic Bessel beam structures are formed and can be made non-diverging with use of a lens. We report the formation of non-diverging Bessel beam of core diameter (a) of 5.7μm over a maximum non-diverging core length of l(±.05)mm. However due to the fine structure of the conical beam at its beam waist position two cores are produces and are of opposite phase.

Original language	English
Title of host publication	Laser Beam Shaping IX
Pages	70620W
DOIs	https://doi.org/10.1117/12.804258
Publication status	Published - 2008
Event	Laser Beam Shaping IX - San Diego, CA, United States Duration: 2008 Aug 11 → 2008 Aug 12

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7062
ISSN (Print)	0277-786X

Conference

Conference	Laser Beam Shaping IX
Country/Territory	United States
City	San Diego, CA
Period	08/8/11 → 08/8/12

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.804258

Cite this

O'Dwyer, D., Phelan, C., Rakovich, Y., Cizmar, T., Dholakia, K., Donegan, J. F., & Lunney, J. G. (2008). Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams. In Laser Beam Shaping IX (pp. 70620W). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7062). https://doi.org/10.1117/12.804258

@inproceedings{393941b2f94041f68fbaea3e4deb6f26,

title = "Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams",

abstract = "Internal conical refraction leads to the formation of zero (J0) and first order (J1) Bessel beams in superposition. The (J 0) beam retains the input circular polarisation and the (J 1) has opposite polarisation but with a single phase change around the beam axis giving it h cross h sign optical angular momentum per photon. This results in the conical beam having 1/2 h cross h sign net optical angular momentum per photon. This provides a simple system in which a beam of 0, 1/2 and h cross sign optical angular momentum can be easily generated and selected with use of only a circular polariser. In the far field the characteristic Bessel beam structures are formed and can be made non-diverging with use of a lens. We report the formation of non-diverging Bessel beam of core diameter (a) of 5.7μm over a maximum non-diverging core length of l(±.05)mm. However due to the fine structure of the conical beam at its beam waist position two cores are produces and are of opposite phase.",

author = "D. O'Dwyer and C. Phelan and Y. Rakovich and T. Cizmar and K. Dholakia and Donegan, {J. F.} and Lunney, {J. G.}",

year = "2008",

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language = "English",

isbn = "9780819472823",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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booktitle = "Laser Beam Shaping IX",

note = "Laser Beam Shaping IX ; Conference date: 11-08-2008 Through 12-08-2008",

}

O'Dwyer, D, Phelan, C, Rakovich, Y, Cizmar, T, Dholakia, K, Donegan, JF & Lunney, JG 2008, Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams. in Laser Beam Shaping IX. Proceedings of SPIE - The International Society for Optical Engineering, vol. 7062, pp. 70620W, Laser Beam Shaping IX, San Diego, CA, United States, 08/8/11. https://doi.org/10.1117/12.804258

Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams. / O'Dwyer, D.; Phelan, C.; Rakovich, Y. et al.

Laser Beam Shaping IX. 2008. p. 70620W (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7062).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams

AU - O'Dwyer, D.

AU - Phelan, C.

AU - Rakovich, Y.

AU - Cizmar, T.

AU - Dholakia, K.

AU - Donegan, J. F.

AU - Lunney, J. G.

PY - 2008

Y1 - 2008

N2 - Internal conical refraction leads to the formation of zero (J0) and first order (J1) Bessel beams in superposition. The (J 0) beam retains the input circular polarisation and the (J 1) has opposite polarisation but with a single phase change around the beam axis giving it h cross h sign optical angular momentum per photon. This results in the conical beam having 1/2 h cross h sign net optical angular momentum per photon. This provides a simple system in which a beam of 0, 1/2 and h cross sign optical angular momentum can be easily generated and selected with use of only a circular polariser. In the far field the characteristic Bessel beam structures are formed and can be made non-diverging with use of a lens. We report the formation of non-diverging Bessel beam of core diameter (a) of 5.7μm over a maximum non-diverging core length of l(±.05)mm. However due to the fine structure of the conical beam at its beam waist position two cores are produces and are of opposite phase.

AB - Internal conical refraction leads to the formation of zero (J0) and first order (J1) Bessel beams in superposition. The (J 0) beam retains the input circular polarisation and the (J 1) has opposite polarisation but with a single phase change around the beam axis giving it h cross h sign optical angular momentum per photon. This results in the conical beam having 1/2 h cross h sign net optical angular momentum per photon. This provides a simple system in which a beam of 0, 1/2 and h cross sign optical angular momentum can be easily generated and selected with use of only a circular polariser. In the far field the characteristic Bessel beam structures are formed and can be made non-diverging with use of a lens. We report the formation of non-diverging Bessel beam of core diameter (a) of 5.7μm over a maximum non-diverging core length of l(±.05)mm. However due to the fine structure of the conical beam at its beam waist position two cores are produces and are of opposite phase.

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Polarisation distribution for internal conical diffraction and the superposition of zero and first order bessel beams

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