1.
Appl Opt
; 58(31): 8495-8500, 2019 Nov 01.
Article
in English
| MEDLINE
| ID: mdl-31873334
ABSTRACT
We describe a highly sensitive optical technique for glucose concentration measurements in liquid samples based on measuring the heights of the primary sidelobes of the normalized intensity profiles of a focused Gaussian beam with high spherical aberration. A singlet lens-shaped container, filled with the sample under test, is used to focus the beam at an observation plane placed close to the focusing region. The normalized intensity profile of the aberrated beam allows for accurate measurement of the sample glucose concentration.