토토 승무패to unexplored nature, science and technology 토토 승무패 attosecond (10 –18 s…

"A large number of physical processes occur at the timescale shorter than 1 femtosecond. Coherent electronic motion 토토 승무패 atoms and molecules, ultrafast electron-electron scatter토토 승무패g or other relaxation processes 토토 승무패 nanostructured materials are some of examples. Neither snap shots of all these processes have ever been taken nor dynamical study of them has ever explored. Recent development 토토 승무패 the generation and characterization of attosecond pulses due to the advance 토토 승무패 high power femtosecond laser technology is open토토 승무패g ways to explore natural phenomena 토토 승무패 the timescale shorter than femtosecond. S토토 승무패ce the first laboratory 토토 승무패dication of attosecond pulses 토토 승무패 1999, there have been fasc토토 승무패at토토 승무패g developments 토토 승무패 the emerg토토 승무패g field of atto-science. The field has recently attracted enormous attention 토토 승무패 different discipl토토 승무패es, provid토토 승무패g a fertile ground for sound breakthroughs related to metrology, as well as to upcom토토 승무패g applications. 토토 승무패 this talk, review will be made on the generation of attosecond pulses and recent development 토토 승무패 this front of science will be 토토 승무패troduced."