Degenerate Four-Wave Mixing-Based Light Source for CARS Microspectroscopy

Jinhui Yuan, Guiyao Zhou, Changming Xia, Xinzhu Sang, Feng Li, Chongxiu Yu, Kuiru Wang, Binbin Yan, Hwa Yaw Tam, Ping Kong Alexander Wai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)


A novel light source for coherent anti-Stokes Raman scattering (CARS) microspectroscopy based on degenerate four-wave mixing (DFWM) is experimentally demonstrated in a photonic crystal fiber with two adjacent zero dispersion wavelengths. When the pump pulse wavelengths are changed from 780 to 800 nm and the average input powers Pavare increased from 300 to 500 mW, the central wavelengths λasand λsof the generated anti-Stokes and Stokes waves are tunable from 660 to 606 nm and 953 to 1177 nm, respectively. In addition, the corresponding frequency difference between the pump and Stokes beams is in the range of 2331-4002 cm-1, which covers a wide range of vibrational Raman spectra of the biological and chemical samples. The feasibility of the proposed DFWM-based light source is demonstrated through measuring the CARS spectrum of the ethanol sample.
Original languageEnglish
Article number7368883
Pages (from-to)763-766
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number7
Publication statusPublished - 1 Apr 2016


  • CARS microspectroscopy
  • DFWM
  • light source
  • Photonic crystal fiber

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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