scholarly journals Measuring the refractive index dispersion of (un)pigmented biological tissues by Jamin-Lebedeff interference microscopy

AIP Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 085107
Author(s):  
Doekele G. Stavenga ◽  
Bodo D. Wilts
Keyword(s):  
Refractive Index ◽  
Biological Tissues ◽  
Interference Microscopy ◽  
Refractive Index Dispersion

Nonlinear Optical Investigation of Biochemical Analytes in Blood Serum via Z-Scan Technique

2021 ◽  
Author(s):  
Samane Raji ◽  
Mohammad Ali Haddad ◽  
Seyed Mohammad Moshtaghioun ◽  
Zahra Dehghan
Keyword(s):  
Refractive Index ◽  
Blood Serum ◽  
Nonlinear Refractive Index ◽  
Nonlinear Optical ◽  
Diagnostic Procedures ◽  
Biological Tissues ◽  
Optical Characteristics ◽  
Closed Aperture ◽  
Optical Investigation ◽  
Medical Diagnoses

Background and Aims: Biomolecules' optical and nonlinear optical properties are widely used for different medical diagnoses and applications in biophotonic devices. These properties are essential in studying biological processes in living tissues. Aside from biomolecules' linear optical characteristics, their nonlinear optical characteristics have lately been considered. Materials and Methods: In this paper, the nonlinear optical responses of three biochemical analytes in blood serum, including glucose, triglycerides, and cholesterol are examined using the laser-based Z-Scan technique. Hence, different laboratory samples of blood serum with various concentrations of biochemical analytes are taken from patients for this purpose. Results: The normalized transmission curves were taken and analyzed in a closed aperture configuration of the Z-Scan technique and led to evaluating the nonlinear refractive index (n2) as an indicator of nonlinear responses of samples. The results show significant nonlinear optical behaviors of the samples under a strong electrical field of the laser, which leads to the measurement of the nonlinear refractive index (n2) of the samples with an error of less than ̴ 0.5 × 10-8 cm2/w. It is found that the values of nonlinear refractive index (n2) vary proportionally as a function of their concentration in blood serum. Conclusion: The findings of this study imply that the above sample's nonlinear optical response and, probable, those of other biological tissues might be used in medical diagnoses. In addition, the Z-Scan technique might be considered as a complementary method with other conventional diagnostic procedures due to its simplicity and quick experimental approach.

Refractive index dispersion and its temperature dependence in GaS

1983 ◽  
Vol 99 (9) ◽  
pp. 437-440 ◽  
Author(s):  
H. Neumann ◽  
M. Lorenz ◽  
W. Hörig ◽  
F. Lévy
Keyword(s):  
Refractive Index ◽  
Temperature Dependence ◽  
Refractive Index Dispersion

Minimal group refractive index dispersion and gain evolution in ultra-broad-band quantum cascade lasers

2002 ◽  
Vol 14 (12) ◽  
pp. 1671-1673 ◽  
Author(s):  
C. Gmachl ◽  
A. Soibel ◽  
R. Colombelli ◽  
D.L. Sivco ◽  
F. Capasso ◽  
...  
Keyword(s):  
Refractive Index ◽  
Quantum Cascade Lasers ◽  
Broad Band ◽  
Refractive Index Dispersion ◽  
Minimal Group ◽  
Quantum Cascade ◽  
Group Refractive Index ◽  
Cascade Lasers

The generalized Morse wavelet method to determine refractive index dispersion of dielectric films

2017 ◽  
Vol 28 (4) ◽  
pp. 045013
Author(s):  
Özlem Kocahan ◽  
Seçkin Özcan ◽  
Emre Coşkun ◽  
Serhat Özder
Keyword(s):  
Refractive Index ◽  
Dielectric Films ◽  
Refractive Index Dispersion ◽  
Wavelet Method
Sign in / Sign up

Export Citation Format

Share Document