“Au-nano-particles production by pico-second ultra-violet laser-deposition in Au-ion doped PMMA film”, T.Hirose, T.Omatsu, M.Sugiyama, S.Inasawa, A.Takami, S.Koda, Chem. Phys. Lett. 390 No.1-3 (2004) pp 166-169.

Characterization of pico-second phase conjugate Nd:YVO4 laser system”, T. Imaizumi, M. Goto, Y. Ojima, T. Omatsu, Jpn. J. Appl. Phys. 43 5A (2004) 2510-2514.

“Efficient phase conjugation by pico-second four-wave-mixing in solid-dye amplifier”, K. Abe, M. Amano, T.Omatsu, Opt. Express 12 No.7 (2004) 1243-1248.

“Efficient 1181nm self-stimulating Raman output from transversely diode-pumped Nd3+: KGd(WO4)2 laser”, T. Omatsu, Y. Ojima, H. M. Pask, J. A. Piper, P. Dekker, Opt. Commun. 232 No.1-6 (2004) 327-331

“Two-point-separation in super-resolution fluorescence microscope based on up-conversion fluorescence depletion technique”, T. Watanabe, Y. Iketaki, T. Omatsu, K. Yamamoto, M. Sakai, M.Fujii, Opt. Express 11 No.24 (2003) 3271-3276.

“Azo-benzene polymer thin-film laser amplifier with grating couplers based on light-induced relief hologram” T. Hirose, T. Omatsu, R. Kato, K. Hoshino, K. Harada, T. Watanabe, M. Fujii, Opt.Commun. 228 No.4-6 (2003) 279-283.

“Multi-watt diffraction limited pico-second pulses from a diode-pumped Nd:YVO4 amplifier with a photorefractive phase conjugate mirror”, T.Omatsu, T.Imaizumi, M.Amano, Y.Ojima, K.Watanabe, M.Goto, J. Opt. A:Pure Appl.Opt. 5 (2003) S467-S470.

“Investigation of the fluorescence depletion process in the condensed phase; application to a tryptophan aqueous solution”, Y.Iketaki, T.Watanabe, T.Omatsu, K.Yamamoto, S.Ishiuchi, M.Sakai, M.Fujii, Chem.Phys.Lett. 372 No.5-6 (2003) 773-778.

“Two-Color Far-Field Super-Resolution Microscope using a Doughnut Beam”, T.Watanabe, Y.Iketaki, T.Omatsu, K.Yamamoto, S.Ishiuchi, M.Sakai, M.Fujii, Chem.Phys.Lett. 371 No.5-6 (2003) 634-639.

“Thermal lensing measurement and thermal conductivity of Yb:YAB”, J.L.Blows, P.Dekker, P.Wang, J.M.Dawes, T.Omatsu, Appl.Phys.B 76 No.3 (2003) 289-292.