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Schematic experimental setup; L: lens; LP: polarizer; HWP: half wave plate; M: mirror; BS: beamsplitter; PBS: polarizing beamsplitter at ; CM: cold mirror (HR at , HT at ); FBM: feedback mirror; CCD: camera; (b) intensity distribution of the lattice wave with a period of ; (c) Fourier space image of the lattice wave containing two bright spots marking the borders of the first Brillouin zone.
Experimentally observed Brillouin zones for a one-dimensional stripe pattern (period ) at different probe beam wavelengths; (a) ; (b) .
VCSEL output in real space (left column) as well as in Fourier space (right column). [(a) and (b)] Output without an induced lattice; [(c) and (d)] output with lattice; [(e) and (f)] output after erasing the lattice with homogeneous white light illumination.
Emission control by changing the polarization state of the beam propagating in the feedback loop. [(a) and (b)] Extraordinary polarization; [(c) and (d)] ordinary polarization.
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