Abstract
Resonant second-order nonlinear optical processes in Quantum Cascade (QC) Lasers were analyzed. It was demonstrate that intersubband (IS) optical transitions in stacked semiconductor quantum wells (QWs) can function as a simultaneous source of fundamental pump and nonlinearity generated light. Laser peak optical powers of 60 and 80 mW resulted in 30 nW of sum-frequency signal and 10-15 nW of second-harmonic signal.
| Original language | English (US) |
|---|---|
| Article number | 043902 |
| Pages (from-to) | 439021-439024 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 90 |
| Issue number | 4 |
| State | Published - Jan 31 2003 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy