A Micron-Sized Laser Photothermal Effect Evaluation System and Method
| Autor: | Xin Xu, Junhui Liu, Lan Tian, Xinyu Huo, Danhong Han, Jingjing Xu, Zhenhai Wang, Ming Zeng |
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| Rok vydání: | 2021 |
| Předmět: |
Evaluation system
Materials science Light Reference data (financial markets) photothermal effects laser-thermocouple interaction temperature measurement system TP1-1185 01 natural sciences Biochemistry Article Analytical Chemistry law.invention 010309 optics 03 medical and health sciences Optics wavelength Thermocouple law 0103 physical sciences Thermal micron-sized laser Electrical and Electronic Engineering Instrumentation 030304 developmental biology Neurons 0303 health sciences business.industry Chemical technology Lasers Photothermal effect Temperature Photothermal therapy Laser Atomic and Molecular Physics and Optics Wavelength thermocouples business |
| Zdroj: | Sensors, Vol 21, Iss 5133, p 5133 (2021) Sensors (Basel, Switzerland) Sensors Volume 21 Issue 15 |
| ISSN: | 1424-8220 |
| Popis: | The photothermal effects of lasers have played an important role in both medical laser applications and the development of cochlear implants with optical stimulation. However, there are few methods to evaluate the thermal effect of micron-sized laser spots interacting with other tissues. Here, we present a multi-wavelength micro-scale laser thermal effect measuring system that has high temporal, spatial and temperature resolutions, and can quantitatively realize evaluations in real time. In this system, with accurate 3D positioning and flexible pulsed laser parameter adjustments, groups of temperature changes are systematically measured when the micron-sized laser spots from six kinds of wavelengths individually irradiate the Pd/Cr thermocouple junction area, and reference data of laser spot thermal effects are obtained. This work develops a stable, reliable and universal tool for quantitatively exploring the thermal effect of micron-sized lasers, and provides basic reference data for research on light-stimulated neuron excitement in the future. |
| Databáze: | OpenAIRE |
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