3 papers
cond-mat.mtrl-sci2021
Understanding the chemical mechanism behind photo-induced enhanced Raman spectroscopy
Junzhi Ye, Rakesh Arul, Michel K. Nieuwoudt +3
Photo-Induced Enhanced Raman Spectroscopy (PIERS) is a new surface enhanced Raman spectroscopy (SERS) modality with an order-of-magnitude Raman signal enhancement of adsorbed analy…
physics.app-ph2020
LIPSS-Sticks: Laser induced double self organization enhances the broadband light harvesting of TiO2 nanotube arrays
Rakesh Arul, Junzhe Dong, M. Cather Simpson +1
Sub-wavelength laser induced periodic surface structures (LIPSS-Sticks) created by ultrashort pulsed laser irradiation on the surface of titanium are used for the first time to tem…
physics.optics2018
Theoretical basis of the diagonal scan method for determining the laser ablation threshold for femtosecond vortex pulses
Reece N. Oosterbeek, Simon Ashforth, Owen Bodley +1
In femtosecond laser micromachining, the ablation threshold is a key processing parameter that characterises the energy density required to cause ablation. Current techniques for m…