Propagation of chirped sinh-Gaussian beams in uniaxial crystals orthogonal to the optical axis

Abstract

This article includes intensity evolutions and phase changes of chirped sinh-Gaussian(CSG) beam propagating in uniaxial crystal orthogonal to optical axis. Received field expression is calculated utilizing Huygens-Fresnel integration. We see that chirped parameter brings decentered intensity distribution. By adjusting the decay factors, higher peak intensity can be obtained at the receiver side. Broken phase at near field is corrected at phase field. Phase change and amount of circles can be controlled by decay factor and chirped parameter. We hope that our results are helpful for scientist working on optical tracking.

Propagation of sine beam in uniaxial crystal orthogonal to optical axis

“…Again opposingly, intensity pattern of cosh‐Gaussian beam lies along x = 0 axis 24 . Different from sine beam, chirped sinh‐Gaussian beam shows decentered concentration along propagation axis 25 . We investigate that sine beam is more resistive against the nature of uniaxial crystal as compared to the other beams from the same family.…”

“…24 Different from sine beam, chirped sinh-Gaussian beam shows decentered concentration along propagation axis. 25 We investigate that sine beam is more resistive against the nature of uniaxial crystal as compared to the other beams from the same family. Analytically, it can be explained that received field contains sine form in Equation ( 5) as it is in source plane.…”

Evolution of chirped cosh-Gaussian vortex beam through uniaxial crystal orthogonal to the optical axis

“…Chirped finite Olver beam turns into elliptic beam when ordinary refractive index is higher than extraordinary refractive index of crystal [14]. Phase of the chirped sinh-Gaussian beam is broken when chirped factor is added [15]. Radially polarized Pearcey beam preserves its Airy like distribution during propagation [16].…”

Role of chirped factor on the focusing and imaging properties of the autofocusing beam

“…In general, introducing the vortex phase into the superimposing multiple 2D Airy beam, the abruptly autofocusing vortex beam has both auto-focusing and rotating characteristics for more flexible controlling the focal intensity of the beam [9,10,13]. So far, the chirp parameter is a useful modulation tool in the field of optics [14][15][16][17]. Since 1985, Mourou and Strickland improved the chirped pulse amplification technology and applied it to the amplification of ultra-short pulse lasers, which has led to the rapid development of laser peaks [14].…”

“…Since 1985, Mourou and Strickland improved the chirped pulse amplification technology and applied it to the amplification of ultra-short pulse lasers, which has led to the rapid development of laser peaks [14]. In the following decades, this technology was widely applied in the field of optics, such as the generation of optical pulses (or beams) [15][16][17]. For example, Zhang et al studied the periodic inversion and phase transition of finite energy Airy beams by the linear chirp and quadratic chirp [16].…”