Rotational frequency shift of a light beam

J. Courtial; D. A. Robertson; K. Dholakia; L. Allen; M. J. Padgett

Rotational frequency shift of a light beam

J. Courtial, D. A. Robertson, K. Dholakia, L. Allen, M. J. Padgett

Department of Physics

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

Abstract

We explain the rotational frequency shift of a light beam in classical terms and measure it using a mm-wave source. The shift is equal to the total angular momentum per photon multiplied by the angular velocity between the source and observer. This is analogous to the translational Doppler shift, which is equal to the momentum per photon multiplied by the translational velocity. We show that the shifts due to the spin and orbital angular momentum components of the light beam act in an additive way.

Original language	English
Title of host publication	Optical Angular Momentum
Publisher	CRC Press
Pages	268-270
Number of pages	3
ISBN (Electronic)	9781482269017
ISBN (Print)	9780750309011
Publication status	Published - 2016 Apr 19

Bibliographical note

Publisher Copyright:
© 2003 by Taylor & Francis Group, LLC.

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

Cite this

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title = "Rotational frequency shift of a light beam",

abstract = "We explain the rotational frequency shift of a light beam in classical terms and measure it using a mm-wave source. The shift is equal to the total angular momentum per photon multiplied by the angular velocity between the source and observer. This is analogous to the translational Doppler shift, which is equal to the momentum per photon multiplied by the translational velocity. We show that the shifts due to the spin and orbital angular momentum components of the light beam act in an additive way.",

author = "J. Courtial and Robertson, {D. A.} and K. Dholakia and L. Allen and Padgett, {M. J.}",

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year = "2016",

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TY - CHAP

T1 - Rotational frequency shift of a light beam

AU - Courtial, J.

AU - Robertson, D. A.

AU - Dholakia, K.

AU - Allen, L.

AU - Padgett, M. J.

PY - 2016/4/19

Y1 - 2016/4/19

N2 - We explain the rotational frequency shift of a light beam in classical terms and measure it using a mm-wave source. The shift is equal to the total angular momentum per photon multiplied by the angular velocity between the source and observer. This is analogous to the translational Doppler shift, which is equal to the momentum per photon multiplied by the translational velocity. We show that the shifts due to the spin and orbital angular momentum components of the light beam act in an additive way.

AB - We explain the rotational frequency shift of a light beam in classical terms and measure it using a mm-wave source. The shift is equal to the total angular momentum per photon multiplied by the angular velocity between the source and observer. This is analogous to the translational Doppler shift, which is equal to the momentum per photon multiplied by the translational velocity. We show that the shifts due to the spin and orbital angular momentum components of the light beam act in an additive way.

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M3 - Chapter

AN - SCOPUS:85052175649

SN - 9780750309011

SP - 268

EP - 270

BT - Optical Angular Momentum

PB - CRC Press

ER -

Rotational frequency shift of a light beam

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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