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RE: Laser Technology: Understand How your DVD/CD Players, Laser printers, Holography and Bar-code Scanners works

in #steemstem • 6 years ago

Yes you are right
That very very small is what makes laser a unique and powerful light
For the ordinary light source, the wavelength spread is 1 in 10^6(10^-6) and 1 in 10^16 (10^-16) according to engineering physics by Nadu

6 years ago in #steemstem by
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