Extended Data Fig. 9: Schematic representation of the microscope arrangement.
From: Light-wave-controlled Haldane model in monolayer hexagonal boron nitride

A reflective objective with NA: 0.4 was used to expose isolated hBN monolayer grains, coated on the front (left) surface of 500 µm thick fusJed silica substrate, with tailored laser pulses. On the output side a transmission objective of NA: 0.45 was used. This focusing configuration results in a focal spot size (wo) of about 10.0 µm and Rayleigh length (ZR) below 157 µm for 2 µm wavelength pump component. For 1 µm wavelength pump component these numbers are 8.0 µm and 201 µm, respectively. See Extended Data Fig. 9 for the experimental data.