We performed saturated absorption spectroscopy of acetylene (C₂H₂) ν₁ + ν₃ band transitions with an optical nanofiber (ONF). Owing to high-intensity light around the ONF, we observed a Lamb dip at relatively low-power laser (~10 mW) without a cavity. Our results showed that the simple ONF spectrometer is advantageous for performing saturation absorption spectroscopy and serves as a practical low-cost wavelength reference in the optical fiber communication band.
CITATION STYLE
Takiguchi, M., Yoshikawa, Y., Yamamoto, T., Nakayama, K., & Kuga, T. (2011). Saturated absorption spectroscopy of acetylene molecules with an optical nanofiber. Optics Letters, 36(7), 1254. https://doi.org/10.1364/ol.36.001254
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