International

First: 44 papers, Other: 48 papers

2023

  1. Kasumi Kawasaki, Yoshio Hayasaki and Satoshi Hasegawa, “Flat-top beam shaping with increased depth of focus,” ISOT2023 (Poster) (Nasu, Dec. 11, 2023).
  2. Satoshi Hasegawa and Yoshio Hayasaki, “Improvement of beam stability using spatial light modulator for high-precision laser processing,” The 24th International Symposium on Laser Precision Microfabrication (LPM2023) (Oral) (Hirosaki, June 16, 2023).
  3. Ryota Masuda, Yoshio Hayasaki, and Satoshi Hasegawa, “Prediction of laser induced nano-periodic structure for laser irradiation conditions using deep learning,” The 24th International Symposium on Laser Precision Microfabrication (LPM2023) (Oral) (Hirosaki, June 15, 2023).
  4. Ren Umetsu, Yoshio Hayasaki, and Satoshi Hasegawa, “On-machine measurement of laser-processed structures using optical interferometry,” The 24th International Symposium on Laser Precision Microfabrication (LPM2023) (Oral) (Hirosaki, June 15, 2023).
  5. Takefumi Kosugi, Satoshi Hasegawa, and Yoshio Hayasaki, “Computer-generated hologram server for holographic optical engine,” The 24th International Symposium on Laser Precision Microfabrication (LPM2023) (Oral) (Hirosaki, June 14, 2023).
  6. Yuta Nakamura, Satoshi Hasegawa, and Yoshio Hayasaki, “Holographic laser processing machine with a rotating stage and in-process measurement system,” The 24th International Symposium on Laser Precision Microfabrication (LPM2023) (Oral) (Hirosaki, June 14, 2023).

2022

  1. Satoshi Hasegawa and Yoshio Hayasaki, “In-process OCT monitoring to control holographic laser processing,” SPIE/COS Photonics Asia 2022 (Online, Nov. 27-29, 2022).
  2. Satoshi Hasegawa, Kenta Nozaki, Ayano Tanabe and Yoshio Hayasaki, “Kilohertz spatial light modulations for high-repetition parallel laser processing,” Information Photonics 2022 (Yokohama, Japan, Apr. 21, 2022).

2021

  1. Satoshi Hasegawa, Kenta Nozaki, Ayano Tanabe and Yoshio Hayasaki, “Holographic femtosecond laser processing with ferroelectric liquid crystal spatial light modulator,” The 2021 Frontiers in Optics + Laser Science (FiO+LS) (Online, Nov. 1, 2021).
  2. Satoshi Hasegawa, Mizuki Kato and Yoshio Hayasaki, “Holographic ultraviolet nanosecond laser processing using adaptive optics,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).
  3. Satoshi Hasegawa, Masatoshi Fujimoto, Toshihisa Atsumi and Yoshio Hayasaki, “In-process monitoring of structure depth using optical coherence tomography in femtosecond laser processing with line-shaped beam,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).
  4. Honghao Zhang, Satoshi Hasegawa, Haruyoshi Toyoda and Yoshio Hayasaki, “Three-dimensional micro-fabrication with optimized holographic reconstructions,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).
  5. Fumiya Ishita, Honghao Zhang, Satoshi Hasegawa and Yoshio Hayasaki, “Fabrication of diffraction grating using holographic parallel focused beams with long focal depth,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).
  6. Ryo Onodera, Satoshi Hasegawa and Yoshio Hayasaki, “In-system optimization of a hologram for beam shaping,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).
  7. Takuma Miura, Kota Kumagai, Satoshi Hasegawa and Yoshio Hayasaki, “In-process observation of femtosecond laser processing with induced acoustic waves,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).
  8. Tomonari Tanaka, Satoshi Hasegawa and Yoshio Hayasaki, “Scanning parallel beam method (SPBM) for micro-laser grooving,” The 22nd International Symposium on Laser Precision Microfabrication (LPM2021) (On-Demand, June 8 – 11, 2021).

2020

  1. Satoshi Hasegawa, Masatoshi Fujimoto, Toshihisa Atsumi and Yoshio Hayasaki, “In-process monitoring of a hole depth processed with femtosecond laser pulses in glass using swept-source optical coherence tomography,” SPIE Photonics Europe (poster) (Strasbourg, France, March 29 – April 2, 2020).

2019

  1. Satoshi Hasegawa, Masatoshi Fujimoto and Yoshio Hayasaki, “In-process measurement of processed hole depth under femtosecond laser processing using optical coherence tomography with swept light source,” The 8th International Congress on Laser Advanced Materials Processing (LAMP2019) (poster) (Hiroshima, Japan, May 22, 2019).
  2. Mizuki Kato, Satoshi Hasegawa and Yoshio Hayasaki, “Holographic ultraviolet laser processing,” The 8th International Congress on Laser Advanced Materials Processing (LAMP2019) (poster) (Hiroshima, Japan, May. 22, 2019).
  3. Satoshi Hasegawa, Yusuke Ogura, Jun Tanida and Yoshio Hayasaki, “Proximity-complex amplitude optimization for focused beam shaping,” Information Photonics 2019(IP2019)(Yokohama, Japan, Apr. 24, 2019).
  4. Makoto Miura, Satoshi Hasegawa, Masashi Iwanaga and Yoshio Hayasaki, “Femtosecond laser microsurgery of cells using confocal surface detection system,” The 5th Biomedical Imaging and Sensing Conference (BISC2019)(Yokohama, Japan, Apr. 25, 2019).

2018

  1. Satoshi Hasegawa and Yoshio Hayasaki, “Holographic femtosecond laser processing using complex-amplitude modulation for generating sub-diffraction-limit spot,” The 19th International Symposium on Laser Precision Microfabrication (LPM 2018) (Edinburgh, UK, Jun. 25-28, 2018).
  2. Satoshi Hasegawa and Yoshio Hayasaki, “Holographic femtosecond laser processing with confocal surface detection system for subcellular surgery in a living cell,” The 19th International Symposium on Laser Precision Microfabrication (LPM 2018) (Edinburgh, UK, Jun. 25-28, 2018).
  3. Satoshi Hasegawa, Cao Hoai Vu, Yusuke Ogura, Jun Tanida and Yoshio Hayasaki, “Holographic complex-amplitude modulation for generating sub-diffraction-limit spot applied to laser material processing,” The Third Smart Laser Processing Conference (SLPC) 2018 (Yokohama, Japan, April 24-26, 2018).

2017

  1. Cao Hoai Vu, Satoshi Hasegawa, Yusuke Ogura, Jun Tanida and Yoshio Hayasaki, “Proximity amplitude and phase control for beam reduction using computer-generated hologram” 22nd Microoptics Conference (MOC) 2017 (Tokyo, Japan, Nov. 19-22, 2017).
  2. Ibuki Yamaguchi, Satoshi Hasegawa and Yoshio Hayasaki, “Estimation of diffractive optics fabricated inside glass using a femtosecond laser,” The 16th International Symposium on Laser Precision Microfabrication (LPM 2017), Program & Technical Digest, Tu2-O-1. (Toyama, Japan, Jun. 25-29, 2017).
  3. Satoshi Hasegawa and Yoshio Hayasaki, “Femtosecond laser processing of biological tissues using computer-generated hologram,” The 16th International Symposium on Laser Precision Microfabrication (LPM 2017), Program & Technical Digest, p-48. (Toyama, Japan, Jun. 25-29, 2017).
  4. Satoshi Hasegawa and Yoshio Hayasaki, “Femtosecond Laser Microdissection of Biological Tissues Using Computer- Generated Hologram,” Information Photonics (IP) 2017 (Yokohama, Japan, Apr. 17-21, 2017).

2016

  1. S. Hasegawa and Y. Hayasaki, “Parallel femtosecond laser processing with more than 1000 beams,” International Symposium on Optomechatronics (ISOT) 2016 (Tokyo, Japan, Nov. 6-10, 2016).
  2. S. Hasegawa and Y. Hayasaki, “Fabrication of nano-periodic structures with holographic line-shaped vector beams,” The Second Smart Laser Processing Conference (SLPC) 2016, SLPC7-C-7 (Yokohama, Japan, May 17-19, 2016).
  3. T. Abe, S. Hasegawa, H. Takahashi, and Y. Hayasaki, “In-process debris removal based on dual polarizations with optical time delay and holographic beam shaping,” The Second Smart Laser Processing Conference (SLPC) 2016, SLPC7-C-7 (Yokohama, Japan, May 17-19, 2016).

2015

  1. K. Kumagai, S. Hasegawa and Y. Hayasaki, “Holographic Parallel Optical Access Volumetric Display with Computer-Generated Hologram and Multilayer Fluorescent Screen,” Asian CORE Student Meeting 2015, Conference Program P-14 (Osaka, Japan, December 8-9, 2015).
  2. S. Hasegawa and Y. Hayasaki, “Holographic vector-wave femtosecond laser processing for fabrication of orientation-controlled nanostrucutres,” International Symposium on Optomechatronics Technology (ISOT 2015), Conference Guide, p.18 (Neuchatel, Switzerland, October 14-16, 2015).
  3. S. Hasegawa and Y. Hayasaki, “Four-dimensional femtosecond laser processing,” The 7th International Congress on Laser Advanced Materials Processing (LAMP) 2015, Program & Technical Digest, p. 119 (Kitakyushu, Japan, May 26 – 29, 2015).
  4. K. Sakuma, T. Abe, S. Hasegawa, H. Takahashi, M. Ota and Y. Hayasaki, “Holographic laser sweep using line-focused beams with optical time delay,” The 7th International Congress on Laser Advanced Materials Processing (LAMP) 2015, Program & Technical Digest, p. 285 (Kitakyushu, Japan, May 26 – 29, 2015).
  5. Y. Ochiai, T. Hoshi, K. Kumagai, J. Rekimoto, S. Hasegawa, and Y. Hayasaki, “Fairy Lights,” 17th International Conferences and Exhibition of Virtual Technologies and Uses (Laval Virtual 2015) (Laval, France, April 8-12, 2015).

2014

  1. S. Hasegawa and Y. Hayasaki, “Holographic femtosecond laser processing with full control of phase distribution and polarization states of light,” 2014 International Conference on Optomechatronic Technologies (ISOT 2014), Program Guide, p.36 (Seattle, USA, November 5-7, 2014).
  2. S. Hasegawa and Y. Hayasaki, “Three-dimensional femtosecond laser processing using holographic vector-wave,” The 9th International Conference on Photo-Excited Processes and Applications (ICPEPA-9), Program and Technical Digest, p.52 (Matsue, Japan, September 30- October 3, 2014).
  3. K. Sakuma, S. Hasegawa, H. Takahashi, M. Ota and Y. Hayasaki, “Holographic laser sweep for debris removal using line-shaped beam irradiation,” The 9th International Conference on Photo-Excited Processes and Applications (ICPEPA-9), Program and Technical Digest, p.114 (Matsue, Japan, September 30- October 3, 2014).
  4. S. Hasegawa and Y. Hayasaki, “Holographic vector-wave femtosecond laser processing,” The 15th International Symposium on Laser Precision Microfabrication (LPM 2014), Program & Technical Digest, p.160 (Vilnius, Lithuania, June 17-20, 2014).
  5. S. Hasegawa and Y. Hayasaki, “Holographic vector wave femtosecond laser processing,” The First Smart Laser Processing Conference (SLPC) 2014, Program & Technical Digest, p.66 (Yokohama, Japan, April 22-24, 2014).
  6. K. Sakuma, S. Hasegawa, H. Takahashi, M. Ota and Y. Hayasaki, “Holographic laser sweep using line-shaped beam for debris removal,” The 9th International Conference on Optics-photonics Design & Fabrication (ODF) 2014, Technical Digest, pp. 347-348 (Itabashi, Tokyo, Japan, February 12-14, 2014).

2013

  1. S. Hasegawa and Y. Hayasaki, “Simultaneous control of wavefront and polarization distribution in femtosecond pulses using a pair of spatial light modulators,” 2013 Japan-Taiwan Bilateral Symposium in Nano/Bio-Photonics, Proceedings of 2013 JTBS, pp.89-90 (Hamamatsu, Japan, November 24-27, 2013).
  2. K. Sakuma, S. Hasegawa, H. Takahashi, M. Ota and Y. Hayasaki, “Holographic laser sweep with line-shaped beam irradiations,” The 10th Japan-Finland Joint Symposium on Optics in Engineering, Technical Digest, p.77 (Utsunomiya, Japan, September 2-4, 2013).
  3. S. Hasegawa, and Y. Hayasaki, “Arbitrary polarization distribution control of parallel femtosecond pulses with spatial light modulators,” The 14th International Symposium on Laser Precision Microfabrication (LPM) 2013, Program & Technical Digest, p.174 (Niigata, Japan, July 23-26, 2013).
  4. K. Sakuma, S. Hasegawa, H. Takahashi, M. Ota and Y. Hayasaki, “Holographic laser sweep using femtosecond fiber laser,” The 14th International Symposium on Laser Precision Microfabrication (LPM) 2013, Program & Technical Digest, p.275 (Niigata, Japan, July 23-26, 2013).
  5. S. Hasegawa, and Y. Hayasaki, “Liquid Volumetric Display with Parallel Optical Access by Computer-generated Hologram,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2013, Conference Program, p.21 (DTh2A.7) (Hawaii, USA, April 21-25, 2013).

2012

  1. S. Hasegawa, and Y. Hayasaki, “Holographic femtosecond laser processing with wavelength dispersion compensation,” International Symposium on Optomechatronic Technologies (ISOT) 2012, Final Program & Abstract Book, p. 54 (Paris, France, October 29-31, 2012).
  2. S. Hasegawa, and Y. Hayasaki, “Multifocal femtosecond laser processing with wavelength dispersion compensation,” 4th International Workshop on Perstectives of Optical Imaging and Metrology (HOLOMET) 2012, Abstract and Program on HOLOMET 2012, p. 23 (Utsunomiya, Japan, July 24-26, 2012).
  3. S. Akira, Y. Ohmura, S. Hasegawa, and Y. Hayasaki, “Holographic three-dimensional position tracking of an optically trapped gold nanoparticle,” OSA Topical meeting of Optical Sensors (SENSORS) 2012, Technical Digest, SM3F (California, USA, June 24-28, 2012).
  4. S. Hasegawa, and Y. Hayasaki, “Holographic femtosecond laser processing system with wavelength dispersion compensation,” Collaborative Conference on 3D Research (CC3DR) 2012, Program and Abstract, pp. 12-13 (Seoul, Korea, June 25-29, 2012).
  5. Y. Hayasaki, T. Higuchi, A. Sato, Q. D. Pham, and S. Hasegawa, “Digital holographic position measurement of an optically-trapped dielectric nanosphere in water,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2012, Conference Program, DTu2C (Florida, USA, April 28 – May 2, 2012).
  6. Q. D. Pham, S. Hasegawa, A. Kiire, D. Barada, T. Yatagai, and Y. Hayasaki, “Long-depth three-dimensional object profilometry with low-coherent digital holography,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2012, Conference Program, DTu3C (Florida, USA, April 28 – May 2, 2012).
  7. Y. Hayasaki, and S. Hasegawa, “Holographic femtosecond laser processing system with an adaptive control,” SPIE Photonics West, Proc. SPIE, Vol. 8204, pp. 82040B.1-7 (San Francisco, USA, January 21-26, 2012).

2011

  1. Q. D. Pham, S. Hasegawa, T. Kiire, D. Barada, T. Yatagai, and Y. Hayasaki, “Low-coherence digital holography with continuous phase shifting and temporal frequency filter,” International Workshop on Holography and related technologies (IWH) 2011, IWH 2011 Digests, pp. 87-88 (Utsunomiya, Japan, November 16-17, 2011).
  2. D. Suzuki, S. Hasegawa, and Y. Hayasaki, “Optimization of a computer-generated hologram with GPU for holographic femtosecond laser processing,” International Workshop on Holography and related technologies (IWH) 2011, IWH 2011 Digests, pp. 81-82 (Utsunomiya, Japan, November 16-17, 2011).
  3. K. Iwata, S. Hasegawa, and Y. Hayasaki, “Time-resolved quantitative observation of femtosecond laser induced phenomena in glass with a tightly focusing condition,” International Workshop on Holography and related technologies (IWH) 2011, IWH 2011 Digests, pp. 79-80 (Utsunomiya, Japan, November 16-17, 2011).
  4. T. Higuchi, Q. D. Pham, S. Hasegawa, and Y. Hayasaki, “Digital holographic three-dimensional position measurement of optically-trapped 200nm-polystyrene sphere in water,” International Workshop on Holography and related technologies (IWH) 2011, IWH 2011 Digests, pp. 71-72 (Utsunomiya, Japan, November 16-17, 2011).
  5. Y. Kusumi, Q. D. Pham, S. Hasegawa, and Y. Hayasaki, “Digital holographic three-dimensional position measurement of a 100nm polystyrene particle in water,” International Workshop on Holography and related technologies (IWH) 2011, IWH 2011 Digests, pp. 69-70,(Utsunomiya, Japan, November 16-17, 2011).
  6. S. Hasegawa, and Y. Hayasaki, “Adaptive holographic femtosecond laser processing,” The First Korea-Japan Workshop on Digital Holography and Information Photonics (DHIP) 2011, Proceedings of The First Korea-Japan International Workshop on Digital Holography and International Photonics, pp. 97-98 (Seoul, Korea, November 9-12, 2011).
  7. Q. D. Pham, Y. Kusumi, T. Higuchi, S. Hasegawa, and Y Hayasaki, “Three-dimensional positioning of nanoparticles using digital holographic microscopy with broadband light source and reflection setup,” International Symposium on Optomechatronic Technologies (ISOT) 2011, Final Program & Abstract Book, p. (Hong Kong, November 1-3, 2011).
  8. Y. Hayasaki, and S. Hasegawa, “Recent progress and applications of holographic femtosecond laser processing,” International Symposium on Optomechatronic Technologies (ISOT) 2011, Final Program & Abstract Book, p. (Hong Kong, November 1-3, 2011).
  9. T. Higuchi, Q. D. Pham, S. Hasegawa, and Y. Hayasaki, “Position measurement of nanoparticles in a liquid under light potential using in-line digital holography,” International Symposium on Optomechatronic Technologies (ISOT) 2011, Final Program & Abstract Book, p. (Hong Kong, November 1-3, 2011).
  10. Y. Hayasaki and S. Hasegawa, “Holographic femtosecond laser processing,” The Ninth Japan-Finland Joint Symposium on Optics in Engineering (OIE’11) Conference proceedings, p. (Turku, Finland, September 8-10, 2011).
  11. S. Hasegawa, and Y. Hayasaki, “Holographic Femtosecond Laser Processing System with Adaptive Wavefornt Control,” Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2011, Conference Handbook, p.62 (5230-CT-2) (Sydney, Australia, August 28 – September 1, 2011).
  12. T. Higuchi, Q. D. Pham, S. Hasegawa, and Y. Hayasaki, “In-line digital holography of nanoparticles in optical tweezers,” Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2011, Conference Handbook, p.61 (5230-CT-1) (Sydney, Australia, August 28 – September 1, 2011).
  13. Y. Hayasaki and S. Hasegawa, “Holographic femtosecond laser processing for producing a three-dimensional structure in a transparent material,” Collaborative Conference on 3D & Materials Research (3DMR), Program and Abstract, p. (Jeju, South Korea, June 27 – July 1, 2011).
  14. S. Hasegawa, and Y. Hayasaki, “Laser grooving with line-shaped femtosecond laser pulses,” The 12th International Symposium on Laser Precision Microfabrication (LPM) 2011, Program & Technical Digest Th2-O-4, p.143 (Takamatsu, Japan, June 7-10, 2011).
  15. S. Hasegawa, and Y. Hayasaki, “Adaptive Holographic Femtosecond Laser Processing,” OSA Topical Meeting of Digital Holography and Three-Dimensional Imaging (DH) 2011, Conference Program, p.21 (DWC4) (Tokyo, Japan, May 9-11, 2011).
  16. K. Kimura, Y. Hashizume, S. Hasegawa, and Y. Hayasaki, “Two-photon excitation with holographic spatiotemporal lens,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2011, Conference Program p.11, (DTuB3) (Tokyo, Japan, May 9-11, 2011).
  17. T. Higuchi, H. Fukaya, Q. D. Pham, S. Hasegawa, and Y. Hayasaki, “Three-dimensional position measurement of nanoparticles in a liquid under light potential using in-line digital holography,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2011, Conference Program, p.22 (DWC15) (Tokyo, Japan, May 9-11, 2011).
  18. K. Iwata, S. Hasegawa, A. Takita, Y. Hayasaki, “Time-Resolved Interferometric Quantitative Observation of Femtosecond Laser Induced Phenomena in Glass under Tight Focusing and Near Threshold Energy,” OSA Topical Meeting of Digital Holography and Three-Dimensional Imaging (DH) 2011, Conference Program, p.24 (DWC24) (Tokyo, Japan, May 9-11, 2011).
  19. Y. Hayasaki, and S. Hasegawa, “Optimization methods of hologram for holographic femtosecond laser processing,” SPIE Photonics West, Proc. SPIE, Vol. 7920, pp. 79200Q1-7 (San Francisco, USA, January 22-27, 2011).
  20. K. Kimura, S. Hasegawa, and Y. Hayasaki, “Holographic spatiotemporal lens,” SPIE Photonic West, Proc. SPIE, Vol. 7925, pp. 7925081-6 (San Francisco, USA, January 22-27, 2011).

2010

  1. K. Kimura, S. Hasegawa, and Y. Hayasaki, “Holographic spatiotemporal lens,” 16th Microoptics Conference (MOC’10), Technical Digest of MOC’10, pp. 82-83 (TC7) (Hsinchu, Taiwan, October 31 – November 3, 2010).
  2. S. Hasegawa, and Y. Hayasaki, “Optimization of computer-generated hologram using second harmonic generation,” International Symposium on Optomechatronic Technologies (ISOT) 2010, Final Program & Abstract Book, p. (LPTI-3), (Tronto, Canada, October 2010).
  3. S. Hasegawa, and Y. Hayasaki, “Second harmonic optimization method for holographic femtosecond laser processing,” The 11th International Symposium on Laser Precision Microfabrication (LPM) 2010, Conference Program & Technical Digest p. 74 (Sttutgart, Germany, June 7-10, 2010).
  4. Y. Takahashi, S. Hasegawa, and Y. Hayasaki, “Second-harmonic optimization method of a hologram,” OSA Topical Meeting of Digital Holography and Three-Dimensional Imaging (DH) 2010, Conference Program, p. (DMB4) (Maiami, USA, April 12-14, 2010).
  5. S. Hasegawa, and Y. Hayasaki, “Second harmonic optimization of a hologram,” SPIE Photonics West, Proc. SPIE, Vol. 7584, pp. 758414-1~8 (San Francisco, USA, January 23-28, 2010).

2009

  1. K. Kimura, S. Hasegawa, and Y. Hayasaki, “Diffractive spatiotemporal lens with wavelength dispersion compensation,” 15th Microoptics Conference (MOC’09), Technical Digest of MOC’09, pp. 140-141 (J8) (Tokyo, Japan, October 2009).
  2. Y. Takahashi, S. Hasegawa, and Y. Hayasaki, “Spatial frequency property of holographic femtosecond laser processing,” 15th Microoptics Conference (MOC’09), Technical Digest of MOC’09, pp. 146-147 (J11) (Tokyo, Japan, October 25-28, 2009).
  3. S. Hasegawa, and Y. Hayasaki, “Optimization of computer-generated hologram in holographic femtosecond laser processing,” The 5th International Congress on Laser Advanced Materials Processing (LAMP) 2009, Congress Program & Technical Digest, p. 318 (Kobe, Japan, June 29 – July 2, 2009).
  4. K. Kimura, S. Hasegawa, S. Yamashita, and Y. Hayasaki, “Diffractive Spatiotemporal Lens with Wavelength Dispersion Compensation,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2009, Conference Program, p (DWB10) (Vancouver, Canada, April 26-30, 2009).
  5. S. Hasegawa, and Y. Hayasaki, “Parallel femtosecond laser processing with a computer-generated hologram,” SPIE Photonics West, Proc. SPIE, Vol. 7201, pp. 72011D-1~8 (San Jose, USA, January 24-29, 2009).

2008

  1. S. Hasegawa, and Y. Hayasaki, “Optimization of Hologram based on optical estimation of parallel laser beam,” International Topical Meeting on Information Phtonics (IP) 2008, Technical Digest, pp. 196-197 (Awaji, Japan, November 16-20, 2008).
  2. S. Hasegawa, and Y. Hayasaki, “Optimization of computer generated hologram using two-photon absorption detector,” The 6th International Conference on Photo-Excited Processes and Applications (ICPEPA) 2008, Technical Digest p. 156 (Sapporo, Japan, September 9-12, 2008).

2007

  1. S. Hasegawa, and Y. Hayasaki, “Holographic Femtosecond Laser Processing using a Multiplexed Phase Fresnel Lenses Designed with Optical Estimation,” OSA Topical meeting of Digital Holography and Three-Dimensional Imaging (DH) 2007, Conference Program (DWC8) (Vancouver, Canada, June 18, 2007).
  2. S. Hasegawa, and Y. Hayasaki, “Holographic femtosecond laser processing by use of a spatial light modulator,” SPIE Photonics West, Proc. SPIE, Vol. 6458, p. 6458A42 (San Jose, USA, January 20-25, 2007).

2006

  1. S. Hasegawa, and Y. Hayasaki, “Holographic Femtosecond Laser Processing using a Hologram Designed with Optical Estimation,” The 5th International Conference on Optics-photonics Design & Fabrication (ODF) 2006, Technical Digest, pp.133-134 (Nara, Japan, December 6-8, 2006).
  2. H. Takahashi, S. Hasegawa, and Y. Hayasaki, “Holographic femtosecond laser processing using a hologram calculated with an optimal-rotation angle method,” The 5th International Conference on Optics-photonics Design & Fabrication (ODF) 2006, Technical Digest, pp.139-140 (Nara, Japan, December 6-8, 2006).
  3. S. Hasegawa, A. Takita, Y. Hayasaki, and N. Nishida, “Holographic femtosecond laser processing with multiplexed phase Fresnel lenses,” The 4th International Congress on Laser Advanced Materials Processing (LAMP) 2006, Technical Digest, p.226 (Kyoto, Japan, May 16-19, 2006).

2005

  1. S. Hasegawa, A. Takita, Y. Hayasaki, and N. Nishida, “Parallel femtosecond laser processing using multiplexed phase Fresnel lenses,” Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2005, Technical Digest, pp.1429-1430 (Tokyo, Japan, July 11-15, 2005).