Ali Javan: pictures

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Ali Javan: podcast

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Ali Javan’s biography...

Ali Javan is an Iranian American physicist and inventor at MIT. His main contributions to science have been in the areas of quantum physics and spectroscopy. He co-invented the gas laser in 1960, with William R. Bennett. In 2007 Javan was ranked Number 12 on the list of the “Top 100 Living Geniuses”. Ali Javan was born in Tehran to Iranian Azeri parents from Tabriz. He graduated from Alborz High School, started his university studies at University of Tehran and came to the United States in 1948. He received his PhD in physics in 1954 from Columbia University under his thesis advisor Charles Townes. In 1955 Javan held a position as a Post-Doctoral in the Radiation Laboratory and worked with Townes on the atomic clock research, and used the microwave atom beam spectrometer to study the hyperfine structure of atoms like copper and thallium. Professor Ali Javan conceived of the gas laser principle in 1958, and in 1960 he brought his discovery to fruition, successfully operation the well-know and widely used helium-neon laser. This invention, the first laser to operate continuously, attracted immediate international attention and laid the foundation for great deal of subsequent work. Prior to his work on the laser, Professor Ali Javan developed the theory of the three level maser and showed the importance of phase coherence in this microwave device. This work introduced the concept of masers without population inversion, and he further extended this idea to the use of the stimulated Raman Effect to achieve gain, a concept that subsequently led to novel extensions in the optical regime. For his work on gas lasers, Professor Javan was awarded the 1964 Stewart Ballentine Medal of the Franklin Institute, the 1966 Fanny and John Hertz Foundation Medal, the 1975 Fredrick Ives Medal of the Optical Society, and the 1993 Albert Einstein World Medal of Science of the World Cultural...

Ali Javan

Ali Javan is an Iranian American physicist and inventor at MIT. His main contributions to science have been in the areas of quantum physics and spectroscopy. He co-invented the gas laser in 1960, with William R. Bennett. In 2007 Javan was ranked Number 12 on the list of the “Top 100 Living Geniuses”. Ali Javan was born in Tehran to Iranian Azeri parents from Tabriz. He graduated from Alborz High School, started his university studies at University of Tehran and came to the United States in 1948. He received his PhD in physics in 1954 from Columbia University under his thesis advisor Charles Townes. In 1955 Javan held a position as a Post-Doctoral in the Radiation Laboratory and worked with Townes on the atomic clock research, and used the microwave atom beam spectrometer to study the hyperfine structure of atoms like copper and thallium. Professor Ali Javan conceived of the gas laser principle in 1958, and in 1960 he brought his discovery to fruition, successfully operation the well-know and widely used helium-neon laser. This invention, the first laser to operate continuously, attracted immediate international attention and laid the foundation for great deal of subsequent work. Prior to his work on the laser, Professor Ali Javan developed the theory of the three level maser and showed the importance of phase coherence in this microwave device. This work introduced the concept of masers without population inversion, and he further extended this idea to the use of the stimulated Raman Effect to achieve gain, a concept that subsequently led to novel extensions in the optical regime. For his work on gas lasers, Professor Javan was awarded the 1964 Stewart Ballentine Medal of the Franklin Institute, the 1966 Fanny and John Hertz Foundation Medal, the 1975 Fredrick Ives Medal of the Optical Society, and the 1993 Albert Einstein World Medal of Science of the World Cultural...