A new absolute distance measurement system is demonstrated in this paper, which is based on a dual-wavelength passive mode-locked fiber laser. By controlling the intracavity loss and spectral ...

We demonstrate the direct generation of a laser frequency comb whose spectrum spanning over 100 THz with a 12.5-GHz spacing. It is confirmed that individual lines on the comb spectrum are shifted ...

With proven ingredients like biotin, caffeine and niacinamide, this color-safe pair aims to promote stronger, thicker locks.

I went through a semi-traumatic period of unexplained hair loss and shedding my freshman year of college, and even though ...