Disentanglement of Multiple Scattering Contribution in Brillouin Microscopy

被引：17

作者：

Mattarelli, Maurizio ^{[4
]}

Capponi, Giulio ^{[1
]}

Passeri, Alessandra Anna ^{[1
]}

Fioretto, Daniele ^{[1
,2
]}

Caponi, Silvia ^{[3
]}

机构：

[1] Univ Perugia, Dipartimento Fis & Geol, I-06100 Perugia, Italy

[2] Univ Perugia, Ctr Excellence Nanostructured Innovat Mat, CEMIN, I-06123 Perugia, Italy

[3] Univ Perugia, Dept Phys & Geol, Italian Natl Res Council IOM CNR, Unit Perugia, I-06123 Perugia, Italy

[4] Univ Perugia, Dipartimento Fis & Geol, I-06100 Perugia, Italy

来源：

ACS PHOTONICS | 2022年 / 9卷 / 06期

关键词：

biophotonics; Brillouin spectroscopy; phonons; biomechanics; multiple scattering; turbid media; LIGHT-SCATTERING; FLUCTUATION; RELAXATION; LIQUIDS; SPECTRA;

D O I：

10.1021/acsphotonics.2c00322

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Due to multiple scattering (MS), Brillouin spectroscopy is currently limited to analyzing transparent materials or the surface of opaque samples. To favor the applications toward in-depth 3D analysis, we provide a new analytic expression and an innovative experimental method to isolate the MS effect. The analytic model, derived from a fundamental description of the interaction process, compares well with a new experimental method, named polarization gated Brillouin spectroscopy, which selects the MS contribution through light polarization. Both experimental and analytic methods are tested against a benchmark material, milk, demonstrating their capability to extract reliable micromechanical parameters even for the in-depth investigation of highly turbid material.

引用

页码：2087 / 2091

页数：5

共 27 条

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