Journal of Chemical Sciences

, Volume 102, Issue 5, pp 565–574

Raman induced phase conjugation spectroscopy

  • B. Raghavendra Prasad
  • R. Krishna Mohan
  • C. K. Subramanian
  • P. S. Narayanan
Special Issue on Raman Spectroscopy and its Applications

DOI: 10.1007/BF03040782

Cite this article as:
Raghavendra Prasad, B., Krishna Mohan, R., Subramanian, C.K. et al. J Chem Sci (1990) 102: 565. doi:10.1007/BF03040782
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Abstract

Raman induced phase conjugation (RIPC) spectroscopy is a relatively new coherent Raman spectroscopic (CRS) technique using optical phase conjugation (OPC), with which complete Raman spectra of transparent media can be obtained. It is a non-degenerate four-wave mixing technique in which two pulsed laser beams at Ω1 and Ω1 ± Δ where A corresponds to a vibrational frequency of a nonlinear medium mix with a third laser beam at Ω1 to generate a fourth beam Ω1± Δ, which is nearly phase conjugate to one of the beams at Ω1. With this technique one can measure the ratio of the resonant and nonresonant components of the third-order nonlinear susceptibilities of the nonlinear media. We have used this technique to get Raman spectra of well-known organic solvents like benzene etc., using pulsed Nd: YAG -dye laser systems. We have also studied the effect of delaying one of the interacting beams with respect to the others and the phase conjugate property of RIPC signals.

Keywords

Raman induced phase conjugation spectroscopycoherent Raman spectroscopyphase conjugate property

Copyright information

© Indian Academy of Sciences 1990

Authors and Affiliations

  • B. Raghavendra Prasad
    • 1
  • R. Krishna Mohan
    • 1
  • C. K. Subramanian
    • 1
  • P. S. Narayanan
    • 1
  1. 1.Department of PhysicsIndian Institute of ScienceBangaloreIndia