Wavelength-scale photonic-crystal laser formed by electron-beam-induced nano-block deposition.
A wavelength-scale cavity is generated by printing a carbonaceous nano-block on a photonic-crystal waveguide. The nanometer-size carbonaceous block is grown at a pre-determined region by the electron-beam-induced deposition method. The wavelength-scale photonic-crystal cavity operates as a single mode laser, near 1550 nm with threshold of approximately 100 microW at room temperature. Finite-difference time-domain computations show that a high-quality-factor cavity mode is defined around the nano-block with resonant wavelength slightly longer than the dispersion-edge of the photonic-crystal waveguide. Measured near-field images exhibit photon distribution well-localized in the proximity of the printed nano-block. Linearly-polarized emission along the vertical direction is also observed.
Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea. minkyo.seo@gmail.com
Min-Kyo
MK
Seo
Ju-Hyung
JH
Kang
Myung-Ki
MK
Kim
Byeong-Hyeon
BH
Ahn
Ju-Young
JY
Kim
Kwang-Yong
KY
Jeong
Hong-Gyu
HG
Park
Yong-Hee
YH
Lee
D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods*; D004583:Electrons; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation*; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity