TY - JOUR
T1 - Resonant Second-Order Nonlinear Optical Processes in Quantum Cascade Lasers
AU - Owschimikow, Nina
AU - Gmachl, Claire
AU - Belyanin, Alexey
AU - Kocharovsky, Vitaly
AU - Sivco, Deborah L.
AU - Colombelli, Raffaele
AU - Capasso, Federico
AU - Cho, Alfred Y.
PY - 2003
Y1 - 2003
N2 - We demonstrate an efficient intracavity nonlinear interaction of laser modes in a specially adapted quantum cascade laser. A two-wavelength quantum cascade laser structure emitting at wavelengths of 7.1 and [Formula presented] included cascaded resonant optical intersubband transitions in an intracavity configuration leading to resonantly enhanced sum-frequency and second-harmonic generation at wavelengths of 4.1, 3.6, and [Formula presented], respectively. 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, both in good agreement with theoretical calculations.
AB - We demonstrate an efficient intracavity nonlinear interaction of laser modes in a specially adapted quantum cascade laser. A two-wavelength quantum cascade laser structure emitting at wavelengths of 7.1 and [Formula presented] included cascaded resonant optical intersubband transitions in an intracavity configuration leading to resonantly enhanced sum-frequency and second-harmonic generation at wavelengths of 4.1, 3.6, and [Formula presented], respectively. 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, both in good agreement with theoretical calculations.
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U2 - 10.1103/PhysRevLett.90.043902
DO - 10.1103/PhysRevLett.90.043902
M3 - Article
C2 - 12570424
AN - SCOPUS:85038301143
SN - 0031-9007
VL - 90
SP - 4
JO - Physical review letters
JF - Physical review letters
IS - 4
ER -