GaN Photonic-Crystal Surface-Emitting Laser at Blue-Violet Wavelengths
Hideki Matsubara,1,2
Susumu Yoshimoto,1
Hirohisa Saito,1
Yue Jianglin,1,2
Yoshinori Tanaka,1,2
Susumu Noda1,2,3*
Shorter-wavelength surface-emitting laser sources are important
for a variety of fields, including photonics, information processing,
and biology. We report on the creation of a current-driven blue-violet
photonic-crystal surface-emitting laser. We have developed a
fabrication method, named "air holes retained over growth,"
in order to construct a two-dimensional gallium nitride (GaN)/air
photonic-crystal structure. The resulting periodic structure
has a photonic-crystal band-edge effect sufficient for the successful
operation of a current-injection surface-emitting laser. This
represents an important step in the development of laser sources
that could be focused to a size much less than the wavelength
and be integrated two-dimensionally at such short wavelengths.
2 Japan Science and Technology Agency, Kyoto 615-8510, Japan.
3 Photonics and Electronics Science and Engineering Center, Kyoto University, Kyoto 615-8510, Japan.
* To whom correspondence should be addressed. E-mail: snoda{at}kuee.kyoto-u.ac.jp
