For more than 50 years, phase-shifting interferometry has been the technology of choice for high-precision surface form metrology instruments.
http://www.newfocus.comRecent advances in tunable laser technology not only eliminate the logistical and inventory problems that result from fixed-wavelength line ...
Researchers developed an ultranarrow bandwidth mode-locked laser with a widely tunable pulse duration, enabling controlled output, for various applications Lasers have widespread applications as a ...