sum frequency generation vibrational spectroscopy  和频振动光谱

cascaded sum-and difference-frequency generation  级联和频与差频二阶非线性效应

Extra-cavity sum-frequency  腔外和频

intra-cavity sum frequency  腔内和频

intracavity sum frequency mixing  腔内和频

Intracavity Sum-frequency  腔内和频

Intra-cavity sum-frequency mixing  腔内和频

Intracavity sum-frequency mixing  腔内和频

Sum Frequency  和频; 和频过程

sum frequency coupling  和频耦合

Sum Frequency Mixing  和频

sum-frequency  和频

Sum-Frequency Mixing  和频

sum-frequency mixing laser  和频激光

sum-frequency theory  和频理论

Difference frequency generation  差频; 差频效应; 差频激光; 差频振荡; 差频产生

Difference-Frequency Generation  差频; 差频效应

Difference-frequency-generation  差频

different frequency generation  差频过程