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  The Electro-Optics Association 
The Photonics Society of Chinese-Americans
Northern California Chapter

 A늌W

2007 Seminar

20070714(Stanford, CA)


Story of Laser Developments and Nobel Prizes in Physics


            

            
Abstract: 

            

									This talk 
									will review the development of lasers and 
									the laser related Nobel Prizes in Physics. 
									The talk will begin with a brief 
									introduction of the pre-laser era invention 
									of microwave Maser by Prof. Charles Townes 
									in 1951 who was awarded the first Nobel 
									Prize on Maser and Laser in 1964, and the 
									publication of famous optical maser paper by 
									Profs. Schawlow and

									Townes that predicted extension of Maser to 
									infrared laser in 1958. Then the talk will 
									focus on the dawn of laser era started in 
									1960 by the first demonstration of ruby 
									laser, followed by the rapid developments of 
									various types of lasers and laser 
									applications in late 1960s and early 1970s. 
									These include the invention of nowadays most 
									popular heterojunction semiconductor laser 
									in 1970 by Prof. Alferov who was awarded the 
									Nobel Physics Prize in 2000, and the 
									applications of laser in precision laser 
									spectroscopy and frequency stabilization by 
									Prof. Schawlow who won the Nobel Prize in 
									1985, and by Hansch and Hall both became the 
									Nobel laureates in Physics in 2005.

									



			

            

			

			

			

            

            

			
			
			Speaker Bio:

            

			
            
	

		

			

				
Professor 
				S. C. Wang received Ph.D. in Electrical from Stanford University 
				Engineering in 1971. He has an extensive professional career 
				both in the academic and industrial research institutions for 
				over forty years. He was a faculty member of Institute of 
				Electronics of National Chiao Tung University (NCTU), Hsinchu, 
				Taiwan from 1965-67. From 1971-74 he served as a Research 
				Associate with Professor A. E. Siegman of Stanford University 
				working on laser frequency stabilization and saturation 
				spectroscopy. From 1974 to 1985, he was a senior research 
				scientist at Xerox Corporation developing white light lasers. 
				From 1985 to 1995, he was a Senior Research Scientist and later 
				promoted to Consulting Scientist at Lockheed-Martin Palo Alto 
				Research Laboratories conducting research on semiconductor 
				vertical cavity surface emitting lasers (VCSELs) and 
				diode-pumped solid state lasers. From1995 to 1998 he was a 
				Visiting Professor with NCTU. Since 1998 he has been a faculty 
				member with Department of Photonics & Institute of 
				Electro-Optical Engineering of NCTU. His current research 
				interests include GaN-based VCSELs, GaN light emitting devices, 
				nano-photonics and nano structures for photon emission control. 
				Professor Wang is a Fellow of the Optical Society of America and 
				Life member of IEEE. He has published over 150 technical papers 
				and has been awarded twenty patents internationally on the laser 
				devices.