Physics of Fluids - Publications

Shortwave infrared imaging setup to study entrained air bubble dynamics in a MEMS-based piezo-acoustic inkjet printhead

Open Access
Experiments in Fluids 60, 123 (2019)

Authors

	Arjan Fraters
	Tim Segers
	Marc van den Berg
	Hans Reinten
	Herman Wijshoff
	Detlef Lohse
	Michel Versluis

BibTeΧ

@Article{Fraters2019,
author="Fraters, Arjan
and Segers, Tim
and van den Berg, Marc
and Reinten, Hans
and Wijshoff, Herman
and Lohse, Detlef
and Versluis, Michel",
title="Shortwave infrared imaging setup to study entrained air bubble dynamics in a MEMS-based piezo-acoustic inkjet printhead",
journal="Experiments in Fluids",
year="2019",
month="Jul",
day="11",
volume="60",
number="8",
pages="123",
abstract="Piezo-acoustic inkjet printing is the method of choice for high-frequency and high-precision drop-on-demand inkjet printing. However, the method has its limitations due to bubble entrainment into the nozzle, leading to jetting instabilities. In this work, entrained air bubbles were visualized in a micrometer scale ink channel inside a silicon chip of a MEMS-based piezo-acoustic inkjet printhead. As silicon is semi-transparent for optical imaging with shortwave infrared (SWIR) light, a highly sensitive SWIR imaging setup was developed which exploited the optical window of silicon at 1550 nm. Infrared recordings of entrained bubbles are presented, showing rich phenomena of acoustically driven bubble dynamics inside the printhead.",
issn="1432-1114",
doi="10.1007/s00348-019-2772-8",
url="https://doi.org/10.1007/s00348-019-2772-8"
}