Conference Agenda

Topical Meetings and Sessions:

TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices
TOM 7 - Thermal radiation and energy management
TOM 8 - Nonlinear and Quantum Optics
TOM 9 - Optics at Nanoscale (ONS)
TOM 10 - Optical Microsystems (OMS)
TOM 11 - Waves in Complex Photonic Media
TOM 12 - Optofluidics
TOM 13 - Ultrafast Optical Technologies and Applications
TOM 14 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session organised by SIOF
Grand Challenges of Photonics Session

More information on the Topical Meetings

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Session Overview
TOM12 S04: Optofluidics: Microfabrication
Tuesday, 14/Sept/2021:
18:00 - 19:30

Session Chair: Caglar Ataman, University of Freiburg, Germany
Location: Aula 7

1st Floor

18:00 - 18:15
ID: 239 / TOM12 S04: 1
TOM 12 Optofluidics

Selective etching of 10 MHz fs-laser inscribed tracks in YAG

Kore Hasse1,2,3, Detlef Kip1, Christian Kränkel4

1Helmut Schmidt University, Germany; 2Institut für Laser-Physik, Universität Hamburg, Germany; 3The Hamburg Center for Ultrafast Imaging, Germany; 4Leibniz-Institut für Kristallzüchtung, Germany

We investigated fs-laser structuring of YAG crystals using high writing velocities up to 100 mm/s using a commercial 10 MHz fs-laser system supplied by Coherent Inc. and selective etching of these structures. A diluted mixture of 22% H3PO4 and 24% H2SO4 accelerated the etching process significantly to an etching parameter D of 11.2 μm2/s, which is three times higher than previously reported. The selectivity of the etching process was increased by an order of magnitude.

18:15 - 18:30
ID: 361 / TOM12 S04: 2
TOM 12 Optofluidics

Fs-laser micromachining of a monolithic whispering gallery mode resonator coupled to a suspended waveguide

João M. Maia1,2, Vítor A. Amorim1,2, Duarte Viveiros1,2, P. V. S. Marques1,2

1CAP – Centre for Applied Photonics, INESC TEC, Rua do Campo Alegre 4150-179, Porto, Portugal; 2Department of Physics and Astronomy, Faculty of Sciences of University of Porto, Rua do Campo Alegre 4169-007, Porto, Portugal

This work describes the fabrication, through femtosecond laser micromachining, of a monolithic optofluidic lab-on-a-chip device entirely made of fused silica. It consists of a microdisk coupled to a suspended waveguide, responsible for exciting whispering-gallery modes of the resonator, with both structures being integrated within a microfluidic channel for fluid handling capabilities. The proposed fabrication methodology provides a precise control over the dimensions and geometry of the device. In particular, thermal processing is used to decrease the microstructures’ surface roughness and to achieve the desired geometry in the coupling region.

18:30 - 18:45
ID: 368 / TOM12 S04: 3
TOM 12 Optofluidics

Transparent microfluidics for quantitative-phase and light-sheet imaging applications

Nava R. Subedi, Shahla Nemati, Andreas E. Vasdekis

University of Idaho, United States of America

We report the development and application of transparent microfluidic systems for high-fidelity imaging applications. We will detail the underlying microfabrication process and its application in two specific areas, namely: [1] high-throughput quantitative-phase imaging of individual bacteria, and [2] light-sheet microscopy using the transversely accelerating Airy beam.