Publication Type
Journal
Journal Name
Optics Letters
Publication Date
Volume
34
Issue
20
Abstract
Precision microdispencing technology delivers picoliter amounts of fluid for printing, electronic,
optical, chemical and biomedical applications. In particular, microjetting is capable of accurate,
flexible, and non-contact coating with polymers, thus allowing the functionalization of delicate microsensors such as microcantilevers. Information on various phases of droplet formation are important to control volume, uniformity, velocity and rate. One such aspect is the ringing of the meniscus after droplet breakoff which can affect subsequent drop formation. We present analysis of an optical characterization technique and experimental results on the behaviour of menisus oscillations in an orifice of a piezoelectric microjet.
