Kr-F脉冲激光在PMMA上制备微通道的激光参数优化

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-07-18 DOI:10.1016/j.optlastec.2025.113575

D. Deepak Singh , M. Shanmuka Srinivas , S. Purushothaman , M. Ravi Sankar , Nagahanumaiah

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引用次数: 0

摘要

微通道最广泛地应用于医疗和诊断应用的护理点（PoC）设备和微流体系统。采用传统工艺制备微通道一直具有挑战性。目前的研究重点是在聚合物上制造它们，如聚甲基丙烯酸甲酯（PMMA），因为它们具有生物相容性和其他使用激光的优势。采用248nm波长的Kr-F脉冲激光，研究了激光参数对PMMA微通道几何形状的影响。测量了通道宽度、通道深度、粗糙度和壁角等参数，以研究激光参数的影响，并对其进行优化，以实现理想的微通道特性，如光滑的表面、均匀的深度和方形通道。采用响应面法（RSM）对激光参数进行了优化设计。激光能量为310 mJ，扫描速度为10 mm/min，频率为32 Hz，提供了所需质量的通道。

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Optimisation of laser parameters for fabrication of microchannels on PMMA using Kr-F pulsed laser

Microchannels are most widely used in point of care (PoC) devices and microfluidic systems for medical and diagnostic applications. Fabrication of microchannels by traditional techniques has always been challenging. The current research is focused on fabricating them on polymers such as polymethylmethacrylate (PMMA) for their bio-compatibility and other added advantages using laser. Kr-F pulsed laser of 248 nm wavelength has been used for this study, and the effects of laser parameters on the geometry of microchannels machined on PMMA are reported. Parameters such as channel width, channel depth, roughness, and wall angle are measured, in order to study the effects of laser parameters and optimise them with the objective to achieve desirable microchannel characteristics such as smooth surfaces, uniform depth, and square channels. A response surface methodology (RSM) based experimental design was used to optimise the laser parameters. Laser energy at 310 mJ, with scan speed of 10 mm/min, and frequency of 32 Hz has provided with the channels of desired quality.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems