Abstract
We report a high-intensity nano-aperture vertical-cavity surface-emitting laser (VCSEL) utilizing a bowtie-shaped aperture. A maximum power of is achieved from a bowtie aperture at a wavelength of . The near-field full width at half-maximum intensity spot size away from the bowtie aperture is from simulation, and the peak near-field intensity is estimated to be as high as . This intensity is high enough to realize near-field optical recording, and the small spot size corresponds to storage densities up to . The bowtie-aperture VCSEL also enables other applications, such as compact high-intensity probes for ultrahigh-resolution near-field imaging and single molecule fluorescence and spectroscopy.
© 2007 Optical Society of America
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