Two-dimensional photonic crystal resist membrane nanocavity embedding colloidal dot-in-a-rod nanocrystals.
A novel technique for the fabrication of photonic crystal (PC) nanocavities coupled with colloidal nanocrystals is presented. A waveguiding resist membrane embedding highly emitting dot-in-a-rod nanocrystals was patterned through e-beam lithography and released through wet etching process. The proposed approach makes the PC structure independent of fabrication imperfections induced by etching steps. Micro-photoluminescence spectra revealed degenerated resonant modes (Q-factor approximately 700) whose fabrication-induced spectral splitting is comparable to the full width at half-maximum of the peaks. Active nanocavities tunable from visible to infrared spectral range on GaAs or Si substrates can be easily implemented by this technique.
Martiradonna
Luigi
L
IIS, INQIE, RCAST, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8904, Tokyo, Japan. martirad@iis.u-tokyo.ac.jp
Carbone
Luigi
L
Tandaechanurat
Aniwat
A
Kitamura
Masatoshi
M
Iwamoto
Satoshi
S
Manna
Liberato
L
De Vittorio
Massimo
M
Cingolani
Roberto
R
Arakawa
Yasuhiko
Y