A new method for determining the plasma electron density using optical frequency comb interferometer

作者：Arakawa Hiroyuki^*; Tojo Hiroshi; Sasao Hajime; Kawano Yasunori; Itami Kiyoshi

来源：Review of Scientific Instruments, 2014, 85(4): 043508.

DOI：10.1063/1.4870925

A new method of plasma electron density measurement using interferometric phases (fractional fringes) of an optical frequency comb interferometer is proposed. Using the characteristics of the optical frequency comb laser, high density measurement can be achieved without fringe counting errors. Simulations show that the short wavelength and wide wavelength range of the laser source and low noise in interferometric phases measurements are effective to reduce ambiguity of measured density.

• 出版日期2014-4