Pulse-Shaping and Nonlinear Spectroscopy

  • N. Karasawa and K. Tada, “Optical solitons from a photonic crystal fiber and their applications,” in “Photonic Crystals Introduction, Applications and Theory,” A. Massaro Ed. pp. 201-224 (Intech, Croatia, 2012).
  • K. Tada and N. Karasawa, “Single-Beam Coherent Anti-Stokes Raman scattering spectroscopy using both pump and Stokes pulses from a photonic crystal fiber,” Appl. Phys. Express, Vol. 4, pp. 092701-1-092701-3 (2011).
  • K. Tada and N. Karasawa, “Broadband coherent anti-Stokes Raman scattering spectroscopy using soliton pulse trains from a photonic crystal fiber,” Opt. Commun. 282, 3948-3952 (2009).
  • K. Tada and N. Karasawa, “Broadband coherent anti-Stokes Raman scattering spectroscopy using pulse-shaper-controlled variable-wavelength soliton pulses from a photonic crystal fiber,” Jpn. J. Appl. Phys. 47, 8825-8828 (2008).

Nonlinear Pulse Propagation and PCF

  • N. Karasawa, A. Yoshida, and K. Watanabe “Soliton-like pulse propagation in a normal dispersive liquid-core optical fiber,” Opt. Lett. Vol. 43, pp. 3897-3900 (2018).
  • N. Karasawa, “Dispersion properties of transverse anisotropic liquid core photonic crystal fibers,” Opt. Commun., Vol. 364, pp. 1-8 (2016).
  • E. Yoshida, A. Wada, and N. Karasawa, “Supercontinuum generation using a selectively water-filled photonic crystal fiber for enhancement in the visible spectral region,” Jpn. J. of Appl. Phys., Vol. 55, pp. 072501-1-072501-5 (2016).
  • N. Karasawa, “Dispersion properties of liquid crystal core photonic crystal fibers calculated by a multipole method modified for anisotropic inclusions,” Opt. Commun., Vol. 338, pp. 123-127 (2015).
  • N. Karasawa “Dispersion properties of liquid-core photonic crystal fiber,” Appl. Optics, Vol. 51, pp. 5259-5265 (2012).
  • N. Karasawa and K. Tada, “The generation of dispersive waves from a photonic crystal fiber by higher-order mode excitation,” Optics Express, 18, 5338 -5343 (2010).

Ultrafast Digital Holography

  • N. Karasawa, "Chirped pulse phase-shifting digital holography for capturing the sequence of ultrafast optical wavefronts," Results in Optics, Vol. 12, p. 100475 (2023).
  • N. Karasawa, T. Ishikawa, and R. Sugo “Single-shot chirped pulse digital holography for observing the propagation of ultrafast optical pulses in liquid,” Jpn. J. Appl. Phys., Vol. 61, p. 062007 (2022).
  • N. Karasawa, S. Yamada, and H. Kanaya “Observation of ultrafast phenomena using chirped pulse digital holography,” Opt. Commun., Vol. 473, p. 125941 (2020).
  • N. Karasawa and A. Hirayama, “Experimental demonstration of single-shot chirped pulse digital holography,” Opt. Commun., Vol. 447, pp. 42-45 (2019).
  • N. Karasawa, “Chirped pulse digital holography for measuring the sequence of ultrafast optical wavefront,” Opt. Commun., Vol. 413, pp. 19-23 (2018).