Characteristics of paraxial propagation of a super Lorentz–Gauss SLG01 mode in uniaxial crystal orthogonal to the optical axis

doi:10.1088/1674-1056/21/5/054104

Abstract Analytical propagation expression of a super Lorentz--Gauss (SLG)₀₁ mode in uniaxial crystal orthogonal to the optical axis is derived. The SLG₀₁ mode propagating in uniaxial crystal orthogonal to the optical axis mainly depends on the ratio of the extraordinary refractive index to the ordinary refractive index. The SLG₀₁ mode propagating in uniaxial crystals becomes an astigmatic beam. The beam spot of the SLG₀₁ mode in the uniaxial crystal is elongated in the x-or y-direction, which is determined by the ratio of the extraordinary refractive index to the ordinary refractive index. With the increase of the deviation of the ratio of the extraordinary refractive index to the ordinary refractive index from unity, the elongation of the beam spot also augments. In different observation planes, the phase distribution of an SLG₀₁ mode in the uniaxial crystal takes on different shapes. With the variation of the ratio of the extraordinary refractive index to the ordinary refractive index, the phase distribution is elongated in one transversal direction and is contracted in the other perpendicular direction. This research is beneficial to the practical applications of an SLG mode.

Keywords: super Lorentz--Gauss mode uniaxial crystals paraxial propagation

Received: 28 August 2011
Revised: 27 April 2012
Accepted manuscript online:

PACS:	41.85.Ew	(Particle beam profile, beam intensity)
	42.25.Bs	(Wave propagation, transmission and absorption)
	42.60.Jf	(Beam characteristics: profile, intensity, and power; spatial pattern formation)
	42.70.-a	(Optical materials)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10974179) and the Natural Science Foundation of Zhejiang Province, China (Grant No. Y1090073).

Cite this article:

Zhou Guo-Quan(周国泉) Characteristics of paraxial propagation of a super Lorentz–Gauss SLG₀₁ mode in uniaxial crystal orthogonal to the optical axis 2012 Chin. Phys. B 21 054104

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Characteristics of paraxial propagation of a super Lorentz–Gauss SLG01 mode in uniaxial crystal orthogonal to the optical axis

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Characteristics of paraxial propagation of a super Lorentz–Gauss SLG₀₁ mode in uniaxial crystal orthogonal to the optical axis