Prof. Hiroshi Masuhara Profile

Prof. Hiroshi Masuhara

Professor at National Yang Ming Chiao Tung Univ.

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 5 October 2023 Presentation + Paper

Optically evolved assembling and swarming of gold nanoparticles at solution interface leading to a plasmonic machine

Hiroshi Masuhara, Chih-Hao Huang

Proceedings Volume 12663, 1266302 (2023) https://doi.org/10.1117/12.2678023

KEYWORDS: Nanoparticles, Gold, Interfaces, Polarization, Plasmonics, Optical binding, Nanolithography, Laser scattering, Laser irradiation, Gold nanoparticles

Read Abstract +

Proceedings Article | 8 December 2022 Paper

Optically evolved assembling of polystyrene microparticles at dye solution surface: application toward an optically reconfigurable random laser

Shuichi Toyouchi, Hsuan-Yin Wang, Hiroshi Masuhara

Proceedings Volume 12479, 124790V (2022) https://doi.org/10.1117/12.2659062

KEYWORDS: Picosecond phenomena, Light scattering, Random lasers, Laser scattering, Laser optics, Glasses, Luminescence, Interfaces, Optical tweezers, Tunable lasers

Read Abstract +

Proceedings Article | 15 June 2020 Paper

Transmission spectral and diffraction pattern study on optical trapping and assembling of dielectric nanoparticles at solution/glass interface

Tetsuhiro Kudo, Ching-Shiang Tseng, Abdullah Kamit, Hiroshi Masuhara

Proceedings Volume 11522, 1152206 (2020) https://doi.org/10.1117/12.2573527

KEYWORDS: Diffraction, Nanoparticles, Picosecond phenomena, Interfaces, Silica, Laser scattering, Optical tweezers, Geometrical optics, Light scattering, Halogens

Read Abstract +

Proceedings Article | 24 April 2018 Paper

Femtosecond laser trapping, assembling, and ejection dynamics of dielectric nanoparticles in solution

Hiroshi Masuhara, Jim Jui-Kai Chen, Wei-Yi Chiang, Anwar Usman, Teruki Sugiyama, Johan Hofkens

Proceedings Volume 10712, 1071202 (2018) https://doi.org/10.1117/12.2318416

KEYWORDS: Nanoparticles

Read Abstract +

Proceedings Article | 16 September 2016 Presentation + Paper

Light propagation in optical trapping assembling of colloidal particles at an interface

T. Kudo, S. Wang, K. Yuyama, H. Masuhara

Proceedings Volume 9922, 99221R (2016) https://doi.org/10.1117/12.2235272

KEYWORDS: Particles, Optical tweezers, Interfaces, Geometrical optics, Crystals, Laser crystals, Molecular assembly, Multiple scattering, Glasses, Nanoparticles

Read Abstract +

Proceedings Article | 25 August 2015 Paper

Laser trapping and assembling of nanoparticles at solution surface studied by reflection micro-spectroscopy

Shun-Fa Wang, Ken-ichi Yuyama, Teruki Suigiyama, Hiroshi Masuhara

Proceedings Volume 9548, 954821 (2015) https://doi.org/10.1117/12.2187636

KEYWORDS: Nanoparticles, Reflection, Nanolithography, Optical tweezers, Imaging spectroscopy, Backscatter, Laser irradiation, CCD cameras, Crystals, Laser scattering

Read Abstract +

Proceedings Article | 12 September 2013 Paper

Rayleigh scattering correlation spectroscopy on diffusion dynamics of nanoparticles under intense laser irradiation

Ping-Yu Hee, Takayuki Uwada, Kazunori Okano, Atsushi Miura, Hiroshi Masuhara

Proceedings Volume 8810, 88102T (2013) https://doi.org/10.1117/12.2023022

KEYWORDS: Particles, Laser scattering, Diffusion, Gold, Nanoparticles, Optical trapping, Rayleigh scattering, Scattering, Absorption, Silica

Read Abstract +

Proceedings Article | 12 September 2013 Paper

Laser trapping dynamics of 200 nm-polystyrene particles at a solution surface

Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

Proceedings Volume 8810, 88101V (2013) https://doi.org/10.1117/12.2023020

KEYWORDS: Nanoparticles, Optical trapping, Crystals, Particles, Laser crystals, Laser irradiation, Halogens, Lamps, Continuous wave operation, Near infrared

Read Abstract +

Proceedings Article | 10 October 2012 Paper

Femtosecond trapping efficiency enhanced for nano-sized silica spheres

Anwar Usman, Wei-Yi Chiang, Hiroshi Masuhara

Proceedings Volume 8458, 845833 (2012) https://doi.org/10.1117/12.929462

KEYWORDS: Light scattering, Silica, Continuous wave operation, Laser scattering, Femtosecond phenomena, Optical tweezers, Particles, Scattering, Nanoparticles, Optical trapping

Read Abstract +

Proceedings Article | 10 October 2012 Paper

Laser trapping dynamics of L-alanine depending on the laser polarization

Ken-ichi Yuyama, Kei Ishiguro, Teruki Sugiyama, Hiroshi Masuhara

Proceedings Volume 8458, 84582D (2012) https://doi.org/10.1117/12.929381

KEYWORDS: Crystals, Laser crystals, Polarization, Liquid crystals, Optical trapping, Crystallography, Molecular lasers, Liquid crystal lasers, Molecules, Optical tweezers

Read Abstract +

Proceedings Article | 11 February 2012 Paper

Laser trapping-induced reconfiguration of individual smectic liquid crystal micro-droplet showing size-dependent dynamics

Anwar Usman, Wei-Yi Chiang, Takayuki Uwada, Hiroshi Masuhara

Proceedings Volume 8274, 82740L (2012) https://doi.org/10.1117/12.906305

KEYWORDS: Molecular lasers, Liquid crystals, Laser damage threshold, Optical trapping, Optical tweezers, Refractive index, Crystals, Laser crystals, Polarization, Continuous wave operation

Read Abstract +

Proceedings Article | 28 August 2010 Paper

Wide-field light scattering imaging of laser trapping dynamics of single gold nanoparticles in solution

Takayuki Uwada, Teruki Sugiyama, Atsushi Miura, Hiroshi Masuhara

Proceedings Volume 7762, 77620N (2010) https://doi.org/10.1117/12.860433

KEYWORDS: Particles, Light scattering, Gold, Nanoparticles, Optical trapping, Convection, Microscopes, Laser scattering, Nanomaterials, Laser irradiation

Read Abstract +

Proceedings Article | 28 August 2010 Paper

Single droplet formation and crystal growth in urea solution induced by laser trapping

Ken-ichi Yuyama, Kei Ishiguro, Thitiporn Rungsimanon, Teruki Sugiyama, Hiroshi Masuhara

Proceedings Volume 7762, 776236 (2010) https://doi.org/10.1117/12.860241

KEYWORDS: Crystals, Urea, Laser crystals, Optical trapping, Molecules, Liquids, Convection, Laser irradiation, Interfaces, Molecular lasers

Read Abstract +

Proceedings Article | 25 February 2008 Paper

Smart bombing a single targeted cell with femtogram order reagents using laser-induced shockwave technique

Kazunori Okano, Noriko Takizawa, Takayuki Uwada, Yoichiroh Hosokawa, Hiroshi Masuhara

Proceedings Volume 6854, 685414 (2008) https://doi.org/10.1117/12.762613

KEYWORDS: Femtosecond phenomena, Nanoparticles, Particles, Glasses, Carbon dioxide, Carbon dioxide lasers, Drug discovery, Proteins, Laser applications, Image processing

Read Abstract +

Proceedings Article | 22 February 2008 Paper

Organic molecular sensing by single metal porphyrin nanoparticles

Takayuki Uwada, Yoichiroh Hosokawa, Noriko Takizawa, Kazunori Okano, Hiroshi Masuhara

Proceedings Volume 6865, 68650I (2008) https://doi.org/10.1117/12.762445

KEYWORDS: Nanoparticles, Particles, Light scattering, Spectroscopy, Molecules, Metals, Crystals, Sensors, Scattering, Imaging spectroscopy

Read Abstract +

Proceedings Article | 20 February 2008 Paper

Femtosecond laser manipulation techniques for individual patterning of biological micro-object

Yoichiroh Hosokawa, Yuqiang Jiang, Isamu Oh, Noriko Takizawa, Takayuki Uwada, Kazunori Okano, Hiroshi Masuhara

Proceedings Volume 6854, 68541K (2008) https://doi.org/10.1117/12.762605

KEYWORDS: Femtosecond phenomena, Optical lithography, Optical trapping, Pulsed laser operation, Cavitation, Oscillators, Laser systems engineering, Absorption, Continuous wave operation, Light sources

Read Abstract +

Proceedings Article | 20 February 2008 Paper

Viability evaluation of culture cells patterned by femtosecond laser-induced impulsive force

Noriko Takizawa, Kazunori Okano, Takayuki Uwada, Yoichiroh Hosokawa, Hiroshi Masuhara

Proceedings Volume 6854, 685411 (2008) https://doi.org/10.1117/12.762584

KEYWORDS: Femtosecond phenomena, Optical lithography, Glasses, Cavitation, Nerve, Microscopes, Printing, Carbon dioxide, Inkjet technology, Objectives

Read Abstract +

Proceedings Article | 12 February 2008 Open Access

Laser fabrication and crystallization of nano materials

Teruki Sugiyama, Tsuyoshi Asahi, Kenichi Yuyama, Hiroki Takeuchi, Hyeon-Gu Jeon, Yoichiroh Hosokawa, Hiroshi Masuhara

Proceedings Volume 6891, 689112 (2008) https://doi.org/10.1117/12.771175

KEYWORDS: Nanoparticles, Crystals, Laser crystals, Laser ablation, Molecules, Particles, Molecular lasers, Nonlinear crystals, Absorption, Femtosecond phenomena

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 11 September 2006 Paper

Thiacarbocyanine dye J-aggregation in optical trapping potential

Yoshito Tanaka, Hiroyuki Yoshikawa, Hiroshi Masuhara

Proceedings Volume 6326, 63262J (2006) https://doi.org/10.1117/12.680387

KEYWORDS: Luminescence, Near infrared, Optical tweezers, Glasses, Laser irradiation, Confocal microscopy, Laser induced fluorescence, Absorption, CCD cameras, Polarizability

Read Abstract +

Proceedings Article | 29 March 2006 Paper

Development of fluoropolymer for 193nm immersion lithography

Naoko Shirota, Yoko Takebe, Takashi Sasaki, Osamu Yokokoji, Minoru Toriumi, Hiroshi Masuhara

Proceedings Volume 6153, 615324 (2006) https://doi.org/10.1117/12.656234

KEYWORDS: Polymers, Diffusion, Fluorine, Immersion lithography, Crystals, Quartz, Silicon, Water, Data analysis, Oscillators

Read Abstract +

Proceedings Article | 28 February 2006 Paper

Non-destructive micro-patterning of protein crystals by focused femtosecond laser

Y. Hosokawa, T. Kaji, Y. Hiraki, H. Mori, H. Masuhara

Proceedings Volume 6108, 610805 (2006) https://doi.org/10.1117/12.654706

KEYWORDS: Proteins, Femtosecond phenomena, Crystals, Optical lithography, Laser crystals, Nonimpact printing, Printing, Etching, Nondestructive evaluation, Microscopes

Read Abstract +

Proceedings Article | 27 August 2005 Paper

Hyper-Rayleigh and hyper-Raman scattering from silver nanoparticles trapped by a near-infrared laser beam

Hiroyuki Yoshikawa, Takashi Ihama, Tamitake Ito, Yukihiro Ozaki, Hiroshi Masuhara

Proceedings Volume 5930, 59300T (2005) https://doi.org/10.1117/12.614706

KEYWORDS: Silver, Laser scattering, Nanoparticles, Scattering, Optical tweezers, Helium neon lasers, Hyper Rayleigh scattering, Raman scattering, YAG lasers, Rhodamine

Read Abstract +

Proceedings Article | 18 October 2004 Paper

Laser patterning and fabrication of nano/microparticle systems in solution

Syoji Ito, Toshiaki Mizuno, Hiroyuki Yoshikawa, Hiroshi Masuhara

Proceedings Volume 5514, (2004) https://doi.org/10.1117/12.559400

KEYWORDS: Nanoparticles, Gold, Ultraviolet radiation, Glasses, Particles, Polymers, 3D microstructuring, Optical lithography, Polarization, Microscopes

Read Abstract +

Proceedings Article | 17 October 2003 Paper

Optical patterning of individual organic/inorganic nanoparticles in solution at ambient temperature

Syoji Ito, Hiroyuki Yoshikawa, Hiroshi Masuhara

Proceedings Volume 4977, (2003) https://doi.org/10.1117/12.478571

KEYWORDS: Nanoparticles, Polymers, Particles, Gold, Ultraviolet radiation, Pulsed laser operation, Glasses, Optical lithography, Atomic force microscopy, Infrared lasers

Read Abstract +

Proceedings Article | 28 May 2002 Paper

Dual-beam laser micromanipulation for sorting biological cells and its device application

Yoichiroh Hosokawa, Hiroshi Masuhara, Yoshitaka Matsumoto, Setsuya Sato

Proceedings Volume 4622, (2002) https://doi.org/10.1117/12.468337

KEYWORDS: Yeast, Microscopes, Beam splitters, Microfluidics, Laser systems engineering, Optical trapping, Mirrors, Nd:YAG lasers, Laser development, Microfabrication

Read Abstract +

Proceedings Article | 25 February 2002 Paper

Laser-induced expansion and ablation mechanisms of organic materials

Yoichiroh Hosokawa, Takashi Mito, Takuji Tada, Tsuyoshi Asahi, Hiroshi Masuhara

Proceedings Volume 4426, (2002) https://doi.org/10.1117/12.456806

KEYWORDS: Laser ablation, Light scattering, Etching, Femtosecond phenomena, Crystals, Scattering, Interferometry, Laser scattering, Optical imaging, Polymers

Read Abstract +

Proceedings Article | 29 June 2001 Paper

Dynamics and mechanism of discrete etching of organic materials by femtosecond laser excitation

Yoichiroh Hosokawa, Masaki Yashiro, Tsuyoshi Asahi, Hiroshi Masuhara

Proceedings Volume 4274, (2001) https://doi.org/10.1117/12.432499

KEYWORDS: Etching, Laser ablation, Picosecond phenomena, Absorption, Femtosecond phenomena, Light scattering, Scattering, Molecules, Laser scattering, Laser damage threshold

Read Abstract +

Proceedings Article | 26 May 1998 Paper

Laser machining of specially designed photopolymers: photochemical ablation mechanism

Thomas Lippert, J. Thomas Dickinson, Steve Langford, H. Furutani, H. Fukumura, Hiroshi Masuhara, Thilo Kunz, Alexander Wokaun

Proceedings Volume 3404, (1998) https://doi.org/10.1117/12.308615

KEYWORDS: Polymers, Laser ablation, Absorption, Etching, Chromophores, Photopolymers, Pulsed laser operation, Data modeling, Excimer lasers, Avalanche photodetectors

Read Abstract +