Manipulation of Microparticles in Optofluidic Devices Fabricated by Femtosecond Laser Micromachining

• Type: Article in International Conference Proceedings Book
• Date: 2024

Authors

Cameira, C (Author) Other; Maia, M (Author) Other; Marques, PVS (Author) FCUP

Conference proceedings International

Title: EPJ Web of Conferences

6th International Conference on Applications of Optics and Photonics, AOP 2024

Aveiro, 16 July 2024 through 19 July 2024

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-017-A6K

DOI: 10.1051/epjconf/202430500006

Abstract (EN): This study reports the fabrication of three-dimensional microfluidic channels in fused silica, using femtosecond laser micromachining, to achieve two-dimensional hydrodynamic flow focusing in either the horizontal or the vertical directions. Spatial focusing of 3 ¿m polystyrene particles was successfully demonstrated, showing the ability of the fabricated devices to confine microparticles within a 6 ¿m layer over a channel width of 420 ¿m and within a 5 ¿m layer over a channel height of 260 ¿m. Integration of laser-direct written optical waveguides inside a microfluidic chip and orthogonal to the channel also enabled the implementation of a dual-beam optical trap, with trapping of polystyrene microparticles using a 1550 nm beam being demonstrated. © The Authors.

Language: English

Type (Professor's evaluation): Scientific