Laser Turns 50 (episode 2) Second Symposium on Lasers |
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![]() 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 Abstract: 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).
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Program of the Second National Symposium on LasersKeynote Speaker Dr. Aslam Baig Department of Physics, Quaid-e-Azam University, Islamabad Speaker Dr. Tayyab Imran School of Science and Engineering, LUMS, Lahore Presenter Umair Asim Vice Principal, Farooqi Girls High School, Lahore Announcement Poster: Second Symposium on Lasers |
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