Controlled sub-nanometer tuning of photonic crystal resonator by carbonaceous nano-dots.
We propose and demonstrate a scheme that enables spectral tuning of a photonic crystal high-quality resonant mode, in steps finer than 0.2 nm, via electron beam induced deposition of carbonaceous nano-dots. The position and size of a nano-dot with a diameter of <100 nm are controlled to an accuracy on the order of nanometers. The possibility of selective modal tuning is also demonstrated by placing nano-dots at locations pre-determined by theoretical computation. The lasing threshold of a photonic crystal mode tends to increase when a nano-dot is grown at the point of strong electric field, showing the absorptive nature of the nano-dot.
Seo
Min-Kyo
MK
Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea. b612@kaist.ac.kr
Park
Hong-Gyu
HG
Yang
Jin-Kyu
JK
Kim
Ju-Young
JY
Kim
Se-Heon
SH
Lee
Yong-Hee
YH
D002244:Carbon / Q000737:chemistry*; D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration / Q000295:instrumentation*; D053844:Lasers, Solid-State; D008027:Light; D008962:Models, Theoretical; D054118:Nanospheres / Q000737:chemistry*; D036103:Nanotechnology / Q000295:instrumentation*; D012542:Scattering, Radiation
D002244:Carbon