LITTLE KNOWN FACTS ABOUT เลเซอร์.

The optical bandwidth of a pulse cannot be narrower compared to the reciprocal of the pulse width. In the case of particularly brief pulses, that implies lasing about a considerable bandwidth, rather Opposite for the really narrow bandwidths usual of CW lasers.ฟิลเลอร์ยกหน้า คืออะไร แก้ปัญหา