A C-shaped nanoaperture vertical-cavity surface-emitting laser for high-density near-field optical data storage

We designed and demonstrated a unique C-shaped nanoaperture (C-aperture) Vertical-Cavity Surface-Emitting Laser with an estimated maximum net power of 113 μW coming from a 70nm C-aperture. Simulation shows the near-field FWHM spot size at 30nm away from the C-aperture is 94nm and 108nm in X and Y direction. We estimate the peak near-field intensity from the C-aperture VCSEL to be as high as 13.7mW/μm 2 . This high intensity and small spot size is promising to realize high-density near-field optical data storage.