The basic science fosters us to understand new ideas and new discoveries and important technological development and laser is just one illustration of that.
These views were expressed by a Noble Laureate Professor Dr Charles Townes, while delivering a lecture on "How Lasers were discovered" here on Friday.
"If we have a molecular atom, it has discrete energy level. Now if radiation comes along, a quantum of variation may be observed," he said.
He said, "energy goes from the atom to wave; the atom may absorb the energy. If we have many molecules in upper state and not so many in the lower state, no molecule falls down and gives energy to the wave then the one which goes up and absorb energy, so the waves get enhanced and gets amplified," he added.
He further said that laser could also be made very small, lasers involving only one or two atoms as well as very big lasers and small lasers and weak lasers were frequently used as tweezers, they could move a single cell around, which is a very powerful tool.
GCU Vice Chancellor Professor Khalid Aftab on the occasion said that Professor Charles Townes delivered a knowledge-packed lecture, which would definitely add to the intellect of the students.
He said that innovation was really the privilege of the young people and this scientific lecture had triggered so much of the scientific inquiry.
The trip of the Nobel Laureates was jointly organised by the Ministry of Science and Technology, Higher Education Commission, Pakistan Science Foundation and Pakistan Atomic Energy Commission.
GCU VC Professor Dr Khalid Aftab also presented shields to the Nobel Laureates.
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