- Dispersionless tunneling of slow light in antisymmetric photonic crystal couplersSangwoo Ha
Centre for Ultrahigh Bandwidth Devices for Optical Systems, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia
Opt Express 16:1104-14. 2008....
- Bloch-mode extraction from near-field data in periodic waveguidesSangwoo Ha
Centre for Ultra High Bandwidth Devices for Optical Systems CUDOS, Nonlinear Physics Centre, Research Schoolof Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia
Opt Lett 34:3776-8. 2009..We illustrate the application of our method to a photonic crystal waveguide interface and confirm its robustness in the presence of noise...
- Control of light transmission in laser-written phase-shifted Bragg grating couplersSangwoo Ha
Nonlinear Physics Centre and Centre for Ultrahigh bandwidth Devices for Optical Systems CUDOS, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia
Opt Lett 36:1380-2. 2011..We observe fundamental differences between light transmission characteristics in couplers with unshifted and shifted gratings in agreement with theoretical predictions...