TY - JOUR
T1 - Multi-functional light emitter based on band-edge modes near Γ-Point in honeycomb photonic crystal
AU - Lee, Po Tsung
AU - Lu, Tsan Wen
AU - Sio, Kuan Un
PY - 2011
Y1 - 2011
N2 - In this report, we demonstrate multi-functional light emitter based on band-edge modes near Γ-point in a two-dimensional honeycomb photonic crystal slab. Different band-edge modes near Γ-point are identified, including the monopole (Γ2), dipole (Γ4,5), and quadrupole (Γ6,7) modes. The monopole and quadrupole modes lasing are observed with high side-mode suppression-ratio of 35 dB and high index sensitivity of 375 nm per refractive index unit, which shows their potential in optical micro-laser and index sensor applications. Over five-fold photoluminescence enhancement with broad band-width of 100 nm from the dipole mode is also observed at room temperature, which shows the advantage of honeycomb lattice structure for designing high brightness light emitting diodes.
AB - In this report, we demonstrate multi-functional light emitter based on band-edge modes near Γ-point in a two-dimensional honeycomb photonic crystal slab. Different band-edge modes near Γ-point are identified, including the monopole (Γ2), dipole (Γ4,5), and quadrupole (Γ6,7) modes. The monopole and quadrupole modes lasing are observed with high side-mode suppression-ratio of 35 dB and high index sensitivity of 375 nm per refractive index unit, which shows their potential in optical micro-laser and index sensor applications. Over five-fold photoluminescence enhancement with broad band-width of 100 nm from the dipole mode is also observed at room temperature, which shows the advantage of honeycomb lattice structure for designing high brightness light emitting diodes.
KW - Enhanced light emission
KW - honeycomb photonic crystal
KW - optical sensor
KW - semiconductor laser
UR - http://www.scopus.com/inward/record.url?scp=79958051309&partnerID=8YFLogxK
U2 - 10.1109/JLT.2011.2142176
DO - 10.1109/JLT.2011.2142176
M3 - Article
AN - SCOPUS:79958051309
SN - 0733-8724
VL - 29
SP - 1797
EP - 1801
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 12
M1 - 5762304
ER -