|Laser Turns 50 (episode 2)
Second Symposium on Lasers
Sponsors and Collaborators:
Emerging Nations Science Foundation
Registration: Registration is required.
Date: September 10, 2011
Time: 10:30 am
Venue: New Auditorium, National University of Computer and Emerging Sciences (FAST-NU), Faisal Town, Lahore
Let there be Light: An Overview of Solid-State Laser Technology (Dr. Tayyab Imran)
From Theodore Maiman’s small ruby laser to ultrafast Ti: Sapphire laser technology, a solid-state laser technology revolution, earning important roles in scientific research, engineering, medicine, materials working, and a host of other applications.
The Use of Lasers in Opthalmology (Dr. Nadeem H. Butt)
Laser-Assisted Pump-probe Studies of Atoms (Dr. Aslam Baig)
Laser-assisted spectroscopic techniques have been exploited to study the highly excited states of atoms; a pump-probe experiment. In this technique, at least two dye lasers are required; the first dye laser serves as an exciting laser whereas the second laser serves as an ionizing laser. A Nd:YAG laser SHG (533nm, 500 mJ) and THG (355 nm, 200 mJ) is used to pump the TDL-90 dye laser (line width »0.08 cm-1) and locally fabricated dye lasers (line width »0.25 cm-1) for multi-step or multi-photon excitation/ ionization of atoms. The ions are detected either in a thermionic diode ion detector or in an atomic beam apparatus. We have also utilized the polarization properties of the laser beams to measure the photoionization cross-sections of the excited states of atoms. A few examples of the spectra will be presented in addition to the latest experimental results on the photoionization of atoms from the Free Electron Laser Source (FLASH).
Resource Persons:Supplementary Documents: Program of the Second National Symposium on Lasers
Dr. Aslam Baig
Department of Physics, Quaid-e-Azam University, Islamabad
Dr. Tayyab Imran
School of Science and Engineering, LUMS, Lahore
Vice Principal, Farooqi Girls High School, Lahore
Announcement Poster: Second Symposium on Lasers
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