Kazuyoshi Itoh, Wataru Watanabe, Stefan Nolte, and Chris B. Schaffer
Materials Research Society Bulletin, August 2006, Vol. 71, p. 620
Ultrafast lasers have extremely short pulse durations or, equivalently, extremely wide signal bandwidth. While the latter feature enables ultrafast photonic communications channels, the former promises the fabrication of integrated photonic communications and signal processing systems inside transparent materials. The extraordinarily high peak power of short-duration optical pulses provides a new approach for local modification of transparent materials through nonlinear optical processes.
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