Development of a photothermal double beam laser scanning system in biopharmaceutical applications

The Tutorial presents the theoretical aspects of photothermal beam deflection spectrometry (BDS) in skimming configuration based on the complex ray theory. After a brief introduction on photothermal spectroscopy, an abridged review of the literature highlighting the theoretical building blocks and its diversified applications is given. The complex ray theory-based 1D and 2D models for evaluating thermophysical, optical, transport, and structural parameters are discussed in detail. The experimental setup, optimization, and applications of the BDS are further elaborated upon.

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Application of photothermal beam deflection spectrometry for non-destructive evaluation of advanced materials: a state-of-the-art review

Swapna,

Sankararaman,

Korte

2024

Laser Phys.

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The progress made in lasers and data acquisition systems has paved the way for innovative non-destructive evaluation methods based on the photothermal phenomenon. Beam deflection spectrometry (BDS) is a photothermal spectroscopic technique that offers ultra-sensitivity, high signal-to-noise ratios, and reduced sample preparation requirements. These advantages provide precise assessment of advanced material (AM) properties. This review presents a comprehensive in-depth analysis, thus helping researchers to understand the potential and future perspectives of BDS along with the theory, instrumentation, and application supported by the literature data. The objective of this review is also to present the possibilities of BDS in the characterization of AMs, including organic, inorganic, and hybrid organic–inorganic materials in the form of thin films, coatings, composites, and nanomaterials.

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Development of a photothermal double beam laser scanning system in biopharmaceutical applications

Cited by 3 publications

References 6 publications

New photothermal deflection technique to discriminate between heating and cooling

New photothermal deflection technique to discriminate between heating and cooling

Sample characterization by transverse photothermal beam deflection spectrometry in skimming configuration

Application of photothermal beam deflection spectrometry for non-destructive evaluation of advanced materials: a state-of-the-art review

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