H. Kurata, H. Kumagai, and K. Ozasa, "High-resolution elemental mapping of titanium oxide / aluminium oxide multilayer by spectrum-imaging," J. Electron Microsc., vol.50, pp. 141-146, 2001.

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Multiwavelength excitation process of fused silica by combination of F₂ and KrF excimer lasers," Proc. SPIE-Int. Soc. Opt. Eng., vol.4274, pp. 141-148, 2001.

T. Akane, K. Sugioka, K. Obata, S. Nomura, K. Hammura, N. Aoki, K. Toyoda, Y. Aoyagi, and K. Midorikawa, "GaN etching by simultaneous irradiation of KrF excimer laser and F₂ laser," Proc. SPIE-Int. Soc. Opt. Eng., vol.4274, pp. 133-140, 2001.

Y. Asakawa, H. Kumagai, K. Midorikawa, and M. Obara, "Sum-frequency generation of a CW single-frequency mode coherent light at 252 nm for laser cooling of silicon," Proc. SPIE-Int. Soc. Opt. Eng., vol.4269, pp. 197-204, 2001.

H. S. Nguyen, A. Suda, Y. Tamaki, and K. Midorikawa, "High-order harmonic and attosecond pulse generations: Bulk media versus hollow waveguides," Phys. Rev. A, vol.63, pp. 063806/1-10, 2001.

S. Fukaya, K. Adachi, M. Obara, and H. Kumagai, "The growth of Cr⁴⁺:YAG and Cr⁴⁺:GGG thin films by pulsed laser deposition," Opt. Commun., vol.187, pp. 373-377, 2001.

S. Ruschin, K. Sugioka, G. Yarom, T. Akane, and K. Midorikawa, "Modification of refractive index in Ag/Na ion-exchanged glasses by vacuum-ultraviolet pulse laser irradiation," Appl. Phys. Lett., vol.78, pp. 1844-1846, 2001.

O. Maya, Y. Nagata, M. Obara, Y. Aoyagi, and K. Midorikawa, "Design of an ultrahigh-gain Ni-like Kr soft-X-ray laser by use of an optical-field-induced ionization-initiated transient collisional excitation scheme," Jpn. J. Appl. Phys. Pt.1, vol.40, pp. 153-158, 2001.

K. Midorikawa, Y. Tamaki, J. Itatani, and M. Obara, "Optimization of conversion efficiency and spatial quality of high-order harmonic generation," J. Phys. IV, vol.11, pp. Pr2/339-344, 2001.

Y. Tamaki, J. Itatani, M. Obara, and K. Midorikawa, "Highly coherent soft X-ray generation by macroscopic phase matching of high-order harmonics," Jpn. J. Appl. Phys. Pt.2, vol.40, pp. L1154--L1156, 2001.

K. Midorikawa, E. J. Takahashi, Y. Tamaki, Y. Nagata, and Y. Nabekawa, "Highly-coherent, high-energy, high-order harmonic generation," Proc. SPIE-Int. Soc. Opt. Eng., vol.4505, pp. 189-194, 2001.

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Influence of laser fluence and irradiation timing of F₂ laser on ablation properties of fused silica in F₂-KrF excimer laser multi-wavelength excitation process," Appl. Phys. A, vol.73, pp. 755-759, 2001.

T. Akane, K. Sugioka, K. Midorikawa, J. J. Dubowski, N. Aoki, and K. Toyoda, "X-ray photoelectron spectroscopic study of KrF excimer laser nitrided InP surface," J. Appl. Phys., vol.90, pp. 5851-5855, 2001.

T. Akane, K. Sugioka, K. Hammura, Y. Aoyagi, K. Midorikawa, K. Obata, K. Toyoda, and S. Nomura, "GaN ablation etching by simultaneous irradiation with F₂ laser and KrF excimer laser," J. Vac. Sci. Technol. B, vol.19, pp. 1388-1391, 2001.

M. Jyumonji, H. Okumura, K. Sera, F. Okumura, K. Sugioka, and K. Midorikawa, "Double-pulse method for enlarging lateral grain growth of excimer laser annealed poly-Si thin films," NEC Res. Develop., vol.42, pp. 272-276, 2001.

E. Miura, H. Honda, K. Katsura, E. J. Takahashi, and K. Kondo, "Enhancement of X-ray emission from a cooled Kr gas jet irradiated by an ultrashort KrF laser pulse," Jpn. J. Appl. Phys. Pt.1, vol.40, pp. 7067-7071, 2001.

A. Gaeta, F. Wise, G. I. Koprinkov, A. Suda, P. Wang, K. Midorikawa, "Comment on "Self-compression of high-intensity femtosecond optical pulses and spatiotemporal soliton generation and reply"," Phys. Rev. Lett., vol.87, pp. 229401-1-229402-1, 2001.

A. Suda, Y. Oishi, K. Nagasaka, P. Wang, and K. Midorikawa, "A spatial light modulator based on fused-silica plates for adaptive feedback control of intense femtosecond laser pulses," Opt. Exp., vol.9, pp. 2-6, 2001.

H. Kumagai, "Development of a high-power deep-ultraviolet continuous-wave coherent light source for laser cooling of silicon atoms," 2001 IEEE/LEOS Ann. Meet. Conf. Proc. Vol. 2, pp. 588-589, 2001.

M. H. Hong, K. Sugioka, D. J. Wu, L. L. Wong, Y. F. Lu, K. Midorikawa, and T. C. Chong, "Laser-induced-plasma-assisted ablation for glass microfabrication," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4595, pp. 138-146, 2001.

K. Sugioka, T. Akane, K. Obata, and K. Midorikawa, "Hybrid laser processing: Novel approach to precision microfabrication," Lasers in Manufacturing 2001: Proc. 1st Int. WLT-Conf. on Lasers in Manufacturing, pp. 284-296, 2001.

I. G. Koprinkov, A. Suda, P. Wang, and K. Midorikawa, "Self-compression of femtosecond laser pulses in solid bulk material," Proc. Int. Conf. on Lasers 2000, pp. 900-902, 2001.

H. Kumagai, Y. Asakawa, K. Midorikawa, M. Obara, "Robust deep-UV coherent light source for laser cooling of silicon atoms," Technical Digest of CLEO/Pacific Rim 2001 Vol. 1, pp. II/476-477, 2001.

H. Kumagai, M. Fujimoto, S. Aoshima, S. H. Cho, Y. Tsuchiya, and K. Midorikawa, "Direct observation of pulse propagation of femtosecond laser in glass with femtosecond time-resolved optical polarigraphy (FTOP) ," Technical Digest of CLEO/Pacific Rim 2001 Vol. 1, pp. I/310-311, 2001.

H. Kumagai, Y. Asakawa, K. Midorikawa, and M. Obara, "Robust deep-UV coherent light source toward laser cooling of silicon atoms," Technical Digest of CLEO/Pacific Rim 2001 Vol. 2, pp. 476-477, 2001.

Y. Mizutani and H. Okamura, "Simulation of ionizing clusters by an intense optical field," Res. Spectrosc., vol.50, pp. 167-170, 2001(in Japanese).

A. Suda, K. Torizuka, and K. Midorikawa, "Generation of attosecond light pulse: Prospect and subject," Oyo Buturi, vol. 70, pp. 156-160, 2001(in Japanese).

K. Sugioka and K. Midorikawa, "Microfabrication of glass by short wavelength lasers," Optical and Electro-Optical Engineering Contact, vol. 39, pp. 24-31, 2001(in Japanese).

K. Sugioka, K. Obata, and K. Midorikawa, "Precision microfabrication by UV and VUV lasers," Reports on The 294th Topical Meeting of The Laser Society of Japan, vol. 39, pp. 35-40, 2001(in Japanese).

K. Sugioka, N. Aoki, M. Masuda, K. Obata, M. Kawai, K. Yomoyama, K. Toyoda, and K. Midorikawa, "Three-dimensional microfabrication of photostructurable glass by femtosecond laser," DENKI GAKKAI KENKYUKAI SIRYOU, vol. OQD-01-53-62, pp. 25-29, 2001(in Japanese).

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Multiwavelength excitation process of fused silica by F₂-KrF excimer lasers," HIKARI RYOSHI DEVICE KENKYUKAI SHIRYO, pp. 25-30, 2001(in Japanese).