Nonlinear frequency response adsorber

Petkovska, M. and Do, D.D., Nonlinear frequency response of adsorption systems isothermal batch and continuous flow adsorber, Chem. Eng. Sci., 53, 3081 3097, 1998. 

The second issue concerns molecular specificity. For a simple measurement of SHG at an arbitrary laser frequency, one caimot expect to extract infomiation of the behaviour of a system with several possible adsorbed species. To make the technique appropriate for such cases, one needs to rely on spectroscopic infomiation. In the simplest iiiiplementation, one chooses a frequency for which the nonlinear response of tlie species of interest is large or dominant. As will... 

---