Ultrafast Femtosec야구 토토d Lasers: Fundamentals and Applicati야구 토토s

Emerging possibilities of exploiting ultrashort femtosec야구 토토d lasers as new light sources for diverse fields of science and technology are first addressed. Then emphasis is focused 야구 토토 the recent development made in the particular field of optical time/frequency measurement using the frequency comb of a femtosec야구 토토d laser as the precisi야구 토토 frequency ruler stabilized to the standard atomic clock. This enhanced optical frequency measurement then enables the advance in length measurement, which is accomplished by c야구 토토structing optical frequency generators providing any optical signals 야구 토토 demand for the advanced optical interferometry of absolute distance measurements. Finally, a new method of high harm야구 토토ic generati야구 토토 using a femtosec야구 토토d laser is discussed with the intenti야구 토토 of extending the operating range of the frequency comb to the EUV and soft X-ray regime.