Self-action of continuous laser radiation and Pearcey diffraction in a water suspension with light-absorbing particles

Differentiation of Mueller-matrix invariants of biological tissues fibrillar networks with different phase and amplitude anisotropy

“…This fact experimentally confirms the model structure of Mueller matrix (8) as superposition of matrix operators that characterize linear and circular dichroism (1), (2), fluorescence of porphyrins ( (3)- (5)) and phase modulation of used radiation (6), (7). However, like it was assumed during the model analysis, polarization autofluorescence is the most vividly manifested in coordinate distributions of Mueller-matrix rotation invariants M 41 and M 14 of the samples of groups 1 and 2.…”

“…Nowadays many practical techniques based on the measurement and analyses of Mueller matrices corresponding to the investigated samples are applied in biological and medical researches [1][2][3][4][5]. A separate direction -laser polarimetry -was formed within matrix optics in recent 10-15 years [6][7][8][9][10].…”

Controllable generation and manipulation of micro-bubbles in water with absorptive colloid particles by CW laser radiation

“…The cuvette contained the water suspension of the black pigment ink (InkTec Corporation [22]). Each pigment particle consists of a spherical polymer core (refraction index n c = 1.59) covered with resin coating (shell), refraction index n s = 1.58 + 0.74i.…”

Methods of Fourier–Stokes polarimetry and the spatial-frequency filtering in the diagnostic tasks

“…In [12,[16][17][18], it was proposed and experimentally proved the model of amorphous-crystalline structure of planar layers in the main types of biological tissuesconnective, muscular, epithelial and nervous. Within the limits of this approach, it has been shown that the following matrix operator can characterize the optical manifestations of polycrystalline networks anisotropy [20] In accordance with (1), the processes of formation of laser field in the polycrystalline network in the plane of biological layer is quite completely described by the following Jones-matrix equation …”

“…Particularly, laser polarimetry of microscopic images inherent to polycrystalline protein networks was formed as a separate approach for studying optically anisotropic components in histological sections of different biological tissues biopsy [12][13][14][15][16][17][18][19]. The analytical methods used in laser polarimetry are based on approximation of linear birefringence in biological tissues.…”