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Hyper-Rayleigh scattering relies on instantaneous fluctuations of an otherwise homogeneous solution to produce frequency doubled light. Varying the concentration of the solute allows for the assessment of the molecular hyperpolarizability (b) of the solute if b of the solvent is known, or vice versa. |
| Schematic representation of laser and collection apparatus used in hyper-Rayleigh scattering experiment. BS = beamsplitter, CL = convex lens, H = half wave plate, IF = interference filter, LP = low pass filter, M = mirror, P = femtosecond polarizer, PCL = planoconvex lens, PD = photodiode, PMT = photomultiplier tube. |
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To see some examples of HRS applications, see our Nonlinear Optics page.