Evolution behavior of pulsed chirped Laguerre higher-order cosh-Gaussian beam propagating through liver tissue

Abstract

Abstract We perform an analytical study on the propagation properties of a pulsed chirped Laguerre higher-order cosh-Gaussian beam (cLhchGB) passing through liver tissue, utilizing the power spectrum refractive index, the extended Huygens-Fresnel integral, and the Fourier Transform method. Our investigation includes numerical simulations based on the derived formula, illustrating how varying beam parameter configurations within liver tissue impact the properties of the beam. Additionally, we thoroughly discuss the influence of both optical parameters and biological tissue characteristics on the spectral modifier, while also evaluating the impact of pulse duration and chirp parameter on spectral intensity at various observation positions. Our observations indicate that the pulsed cLhchGB undergoes changes in its shape as it traverses a considerable distance through this medium. The results presented in this paper hold significant importance for their potential applications in determining the deterioration or disruption of biological tissue, as well as in the fields of medical imaging and medical diagnosis.