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Optical pulse compression to 3.4 fs in the monocycle region by feedback phase compensation

Yamane, Keisaku | Zhang, Zhigang | Oka, Kazuhiko | Morita, Ryuji | Yamashita, Mikio | Suguro, Akira

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Site-selective silicon adatom desorption using femtosecond laser pulse pairs and scanning tunneling microscopy

Futaba, D. N. | Morita, R. | Yamashita, M. | Tomiyama, S. | Shigekawa, H.

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Nonlinear propagation of a-few-optical-cycle pulses in a photonic crystal fiber-experimental and theoretical studies beyond the slowly varying-envelope approximation

Fang, Xiaojun | Karasawa, Naoki | Morita, Ryuji | Windeler, Robert S. | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Two-photon absorption and multiphoton-induced photoluminescence of bulk GaN excited below the middle of the band gap

Toda, Y. | Matsubara, T. | Morita, R. | Yamashita, M. | Hoshino, K. | Someya, T. | Arakawa, Y.

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Finite-difference time-domain calculation with all parameters of Sellmeier's fitting equation for 12-fs laser pulse propagation in a silica fiber

Nakamura, Shinki | Koyamada, Yahei | Yoshida, Norinobu | Karasawa, Naoki | Sone, Hiroyasu | Ohtani, Morimasa | Mizuta, Yo | Morita, Ryuji | Shigekawa, Hidemi | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Optical pulse compression to 5.0 fs by use of only a spatial light modulator for phase compensation

Karasawa, Naoki | Li, Liming | Suguro, Akira | Shigekawa, Hidemi | Morita, Ryuji | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Comparison between theory and experiment of nonlinear propagation for a-few-cycle and ultrabroadband optical pulses in a fused-silica fiber

Karasawa, Naoki | Nakamura, Shinki | Nakagawa, Naoya | Shibata, Masato | Morita, Ryuji | Shigekawa, Hidemi | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Generation of intense ultrabroadband optical pulses by induced phase modulation in an argon-filled single-mode hollow Waveguide

Karasawa, Naoki | Morita, Ryuji | Shigekawa, Hidemi | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Nonresonant femtosecond second hyperpolarizabilities of intramolecular charge-transfer molecules with great excited- and ground-state dipole-moment differences

Yamashita, Mikio | Kikuma, Shinji | Yamaoka, Yoshihisa | Murakami, Hidetoshi | Morita, Ryuji | Shigekawa, Hidemi

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Theory of ultrabroadband optical pulse generation by induced phase modulation in a gas-filled hollow waveguide

Karasawa, Naoki | Morita, Ryuji | Xu, Lin | Shigekawa, Hidemi | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Generation of monocycle-like optical pulses using induced-phase modulation between two-color femtosecond pulses with carrier phase locking

Yamashita, Mikio | Sone, Hiroyasu | Morita, Ryuji | Shigekawa, Hidemi

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University

Effect of delayed nonlinear response on femtosecond optical pulse compression by use of an organic crystal-cored fiber in the normal dispersion region

Morita, Ryuji | Yamashita, Mikio

Hokkaido University Collection of Scholarly and Academic PapersHokkaido University