face-to-face coupling
1.In order to reduce the crosstalk of 1×7 CMRC introduced by using of cylindrical mixing rod, a U shape optical fiber absorber is placed on the mismatched area on the end face of the mixing rod. Theoretical analysis and experimental measurement indicate that 1×7 CMRC with U shape absorber has a equivalent coupling efficiency as 1×7 TMRC.
2.This method can be used to determine the force constant of adsorbate molecule itself and the interaction force constants between adsorbate molecules with the help of the IRAS, EELS and LEED experimental data of adsorbate. The vibrational coupling effcts of CO molecules on Cu(111) face with (3~(1/2) ×3~(1/2))R30° structure are discussed in detail.
