Co-existence of harmonic generation and two-photon luminescence in selectively grown coaxial InGaN/GaN quantum wells on GaN pyramids
2015
Nonlinear optical properties of coaxial InGaN/GaN multiple quantum well (MQWs) submicron hetero-structures were
investigated using a tunable femtosecond laser at room temperature. Co-axial InGaN/GaN MQW hetero-structures were
fabricated by depositing InGaN/GaN layers on the side walls of GaN submicron tubes on top of GaN micro-pyramids.
Excitation and signal collection from a single micro-structure was achieved using multi-photon spectroscopy. Two
photon excited photoluminescence (TPEL) was observed at around 390 nm independent of excitation wavelength. In
addition to TPEL, observation of second harmonic signal of the excitation laser is also presented.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
11
References
0
Citations
NaN
KQI