World's sharpest laser developed
Theoretically, laser light has only one colour, frequency or wavelength. In reality, however, there is always a certain linewidth.
Jul 02, 2017, 18:41 PM IST
World's sharpest laser
Theoretically, laser light has only one colour, frequency or wavelength. In reality, however, there is always a certain linewidth.
Jul 02, 2017, 18:41 PM IST