Figure 2
Experimental setup: NDF is a neutral density filter; P1 and P2 are prisms; Ob1 and Ob2 are 20× objective lenses. The STM image of the PCF cross section is shown in the inset.
Figure 2 | Scientific Reports
Experimental setup: NDF is a neutral density filter; P1 and P2 are prisms; Ob1 and Ob2 are 20× objective lenses. The STM image of the PCF cross section is shown in the inset.
