Frequency-domain interferometer for femtosecond time-resolved phase spectroscopy

E. Tokunaga, A. Terasaki, T. Kobayashi

Research output: Contribution to journalArticlepeer-review

139 Citations (Scopus)


A new femtosecond time-resolved interferometer was developed that utilizes interference fringes in the frequency domain to obtain simultaneously difference phase spectra (DPS) and difference transmission spectra with a multichannel spectrometer. For the first time to our knowledge, transient oscillations were observed in DPS and the spectral shift of a probe pulse was time resolved together with the rise in DPS, which is clear evidence for induced phase modulation in absorptive materials.

Original languageEnglish
Pages (from-to)1131-1133
Number of pages3
JournalOptics Letters
Issue number16
Publication statusPublished - Aug 15 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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