49 citations · 153 across the 8 of their papers we have counts for
8 papers
Laser-Induced Graphitisation of Diamond Under 30 fs Laser Pulse Irradiation
Bakhtiar Ali, Han Xu, Dashavir Chetty +3
The degree of laser-induced graphitisation from a sp3-bonded to a sp2-bonded carbon fraction in a single crystal chemical vapour deposited (CVD) diamond under a varying fluence of…
Carrier-Envelope-Phase Dependent Strong-Field Excitation
D. Chetty, R. D. Glover, X. M. Tong +9
We present a joint experimental-theoretical study on the effect of the carrier-envelope phase (CEP) of a few-cycle pulse on the atomic excitation process. We focus on the excitatio…
Strong field ionisation of Argon: Electron momentum spectra and nondipole effects
Nida Haram, Han Xu, Igor Ivanov +3
We investigate the influence of relativistic nondipole effects on the photoelectron spectra of argon, particularly in the low kinetic energy region (0 eV - 5 eV). In our experiment…
Ellipticity Dependence of Excitation and Ionization of Argon Atoms by Short-Pulse Infrared Radiation
Thomas Pauly, Aaron Bondy, Kathryn R. Hamilton +4
When atoms or molecules are exposed to strong short-pulse infrared radiation, ionization as well as "frustrated tunneling ionization" (FTI) can occur, in which a portion of the alm…
Observation of Dynamic Stark Resonances in Strong-Field Excitation
Dashavir Chetty, Rohan D. Glover, Bruno A. deHarak +12
We investigate AC Stark-shifted resonances in argon with ultrashort near-infrared pulses. Using 30 fs pulses we observe periodic enhancements of the excitation yield in the intensi…
Effect of double pulse irradiation on the morphology of a picosecond laser produced chromium plasma
Kavya H. Rao, N. Smijesh, D. Chetty +2
We describe the measurements to control the morphology and hence the characteristics of a picosecond laser produced chromium plasma plume upon double-pulse (DP) irradiation compare…