This paper reviews the progress on nano-aperture vertical-cavity surface-emitting lasers (VCSELs). The design, fabrication, and polarization control of nano-aperture VCSELs are reviewed. With the nano-aperture evolving from conventional circular and square aperture to unique C-shaped, H-shaped, I-shaped, and bowtie-shaped aperture, both the near-field intensity and near-field beam confinement from nano-aperture VCSELs are significantly improved. As a high-intensity compact light source with sub-100-nm spot size, nano-aperture VCSELs are promising to realize many new near-field optical systems and applications.
© 2008 Chinese Optics Letters
(230.5440) Optical devices : Polarization-selective devices
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(210.4245) Optical data storage : Near-field optical recording
Zhilong Rao, Sonny Vo, and James S. Harris, "A review of progress on nano-aperture VCSEL," Chin. Opt. Lett. 6, 748-754 (2008)