Laser Turns 50
Lasers from Islamabad, Lahore and Cern: What Binds them Together (Dr. Shaukat Hameed Khan)
The laser is just 50 years old but it is shaping our lives in diverse manners. One key area is precision of measurement. A small Pakistani innovation to the design of the system which makes up the massive detectors in the Large Hadron Collidor at CERN in Geneva is discussed. This is placed in the context of mankind’s greater quest over the centuries for precision, whether these relate to his position on earth or in space, or timekeeping. The principal features of the laser programme in Pakistan is presented briefly.
Laser-generated Pulsed X-ray Sources (Dr. Fida Khattak)
I would be presenting the basic principles of x-ray generation via different schemes using high power laser pulses for the non-specialized. I would be also presenting some experimental results for the audience having research interest in the field.
Fundamentals of Fiber-optic Communications (Dr. Mumtaz Sheikh)
Ever since the advent of the internet, fiber optic communication systems play an important role in our everyday lives. This talk would focus on how do these systems work, what is so special about them compared to traditional electrical communication systems, what kind of
lasers are suitable for such systems, what are some of the issues and tradeoffs that a designer has to consider while designing such systems and where is the technology headed in the future.
Light: Its Applications in Interferometery, Polarimetry and Photodynamic Therapy (Dr. Masroor Ikram)
Light is one of the oldest subject but its true nature has yet to be fully discovered. For more than hundred years its dual nature is well accepted. Optics and Laser Group in PIEAS has worked on some of its applications. Michelson interferometer was reported in the late nineteenth century but its use for precise measurement of angle and axis of rotation is reported very recently. Polarization imaging can produce very high contrast and the technique is useful for material characterization. Photodynamic therapy is an emerging technique to cure the cancers with high selectivity. In the technique, two individually non-toxic components brought together to cause harmful effects on cells and tissues in the presence of oxygen.