English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

This study investigated the formation of multi-voids in polydimethylsiloxane(PDMS) using a multi-pulse irradiation method and explored the impact of laserenergy, number of pulses per micron (writing speed), and laser spot size (NA)on the process. The experimental results revealed that multi-void formationoccurred due to multi-pulse irradiation in the bulk of PDMS. Additionally,increasing laser energy led to an increase in the number of voids, while thenumber of voids did not change with an increase in the number of pulses permicron for a fixed laser parameter. However, the size of the voids increasedwith the number of pulses per micron, and tighter focusing conditions (higherNA) resulted in smaller voids with a shorter distance between them.Furthermore, Finite-Difference-Time-Domain (FDTD) simulations reproduced thegeneration of void arrays in PDMS using a similar multi-laser pulse approach.By modeling the voids as concentric spheres with densified shells andsimulating the laser interaction with the voids, we showed that void arraygeneration in PDMS is a linear mechanism. This study provides valuable insightinto the mechanism behind the formation of void arrays in PDMS. The simulationresults agrees well with the experimental results to further validate the modeland gain a better understanding of the physical processes involved in thegeneration of void arrays in PDMS.

Mechanism of laser induced self-organized void array formation in Polydimethylsiloxane (PDMS)