A5101488474- Laser Material Processing Techniques
- Photorefractive and Nonlinear Optics
- Advanced Optical Imaging Technologies
- Nonlinear Optical Materials Studies
- Laser-Matter Interactions and Applications
- Cavitation Phenomena in Pumps
- Orbital Angular Momentum in Optics
- Digital Holography and Microscopy
- Optical Coherence Tomography Applications
- Ocular and Laser Science Research
- Advanced Surface Polishing Techniques
- Rocket and propulsion systems research
- Spacecraft and Cryogenic Technologies
- Hydraulic and Pneumatic Systems
- Virtual Reality Applications and Impacts
- Aquaculture disease management and microbiota
- Semiconductor Lasers and Optical Devices
- Olfactory and Sensory Function Studies
- Computer Graphics and Visualization Techniques
- Hydrogen embrittlement and corrosion behaviors in metals
- Visual perception and processing mechanisms
- Cyclone Separators and Fluid Dynamics
- Advanced Optical Network Technologies
- Nuclear Physics and Applications
- Near-Field Optical Microscopy
Utsunomiya University
2015-2024
Mie University
2008-2021
Tohoku University
2002-2018
Japan Aerospace Exploration Agency
2005-2017
Kyoto University
2017
Ibaraki University
2016
Saiseikai Ibaraki Hospital
2010-2014
Nagoya University
2014
Nagoya Bunri University
2002-2013
Infinity (United States)
2013
We have imaged, in real time, fluorescent tumors growing and metastasizing live mice. The whole-body optical imaging system is external noninvasive. It affords unprecedented continuous visual monitoring of malignant growth spread within intact animals. established new human rodent that stably express very high levels the Aequorea victoria green protein (GFP) transplanted these to appropriate B16F0-GFP mouse melanoma cells were injected into tail vein or portal 6-week-old C57BL/6 nude...
Significance Living organisms perceive temperature using thermosensory molecules. In this study, we found that phototropin, a blue-light photoreceptor, perceives via mechanism based on the photoactivated chromophore’s lifetime to induce appropriate chloroplast positioning in plants. Our findings reveal chromophore of phototropin directs optimize photosynthesis plants by ( i ) sensing blue light and ii temperature-dependent mechanism. Because many photoreceptors range contain phtoactivatable...
Holographic femtosecond laser processing with multiplexed phase Fresnel lenses for high-speed parallel fabrication of microstructures is proposed. Use a spatial light modulator (SLM) allows independent tunability the diffraction peaks, three-dimensional parallelism, and arbitrary, variable features. The peaks are made uniform by changing center size each lens while taking account intensity distribution irradiated pulse frequency response SLM.
A water-stable multilayer Li-metal electrode consisting of a lithium metal, composite polymer, and lithium-conducting glass ceramic (LTAP) was proposed as the anode for aqueous lithium–air secondary batteries. The addition finely dispersed nanosize in polymer electrolyte greatly reduced interfacial resistance between Li electrolyte. showed total 1 M LiCl solution at , with no change over month. LiCl/Pt air cell had stable open-circuit voltage 3.80 V, which equivalent to that calculated from...
We present a method of rendering aerial and volumetric graphics using femtosecond lasers. A high-intensity laser excites physical matter to emit light at an arbitrary three-dimensional position. Popular applications can thus be explored, especially because plasma induced by is less harmful than that generated nanosecond laser. There are two methods with in air: producing holograms spatial modulation technology scanning beam galvano mirror. The workspace the system proposed here occupy volume...
Abstract An np tandem dye-sensitized solar cell (np-DSC) comprising a titanium dioxide (TiO2) anode and nickel oxide (NiO) cathode prepared as porous nanostructured films by sol–gel method using triblock copolymer template (P123, HO(OCH2CH2)20(OCH(CH3)CH2)70(OCH2CH2)20OH))CH2 exhibited high open circuit voltage (Voc) of 0.92 V that surpassed the long time champion data, ≈0.8 for conventional DSC.
The ability of insulin-like growth factor-I (IGF-I), insulin and GH to promote hypoosmoregulatory was examined in juvenile rainbow trout (Oncorhynchus mykiss). Following adaptation 12 parts per thousand (p.p.t.) seawater for 5 days, fish were given a single injection hormone or vehicle, then exposed 29 p.p.t. 24 h changes plasma osmolarity, ions glucose. Ovine (oGH; 0.2 micrograms/g) significantly improved the maintain osmolarity sodium levels following transfer seawater. Recombinant bovine...
To develop a volumetric display of the kind we see in science fiction movies is dream many researchers, including us. Here, show new with microbubble voxels. The microbubbles are three-dimensionally generated liquid by focused femtosecond laser pulses. use high-viscosity liquid, which key part development this idea, slows down movement microbubbles, and, as result, graphics can be displayed. This bubble has wide-angle view, simple refreshing, and no addressing wires, since transparent...
Massively parallel femtosecond laser processing with more than 1000 beams was demonstrated. Parallel were generated by a computer-generated hologram (CGH) displayed on spatial light modulator (SLM). The key to this technique is optimize the CGH in system using scheme called in-system optimization. It analytically demonstrated that number of determined horizontal pixels SLM NSLM imaged at pupil plane an objective lens and distance parameter pd obtained dividing between adjacent...
A new type of functional optical microscope system called three-dimensional (3D) stimulation and imaging-based microscopy (SIFOM) is proposed, to the best our knowledge. SIFOM can precisely stimulate user-defined targeted biological cells simultaneously record volumetric fluorescence distribution in a single acquisition. Precise simultaneous fluorescent-labeled achieved by multiple 3D spots generated digital holograms displayed on phase-mode spatial light modulator. Single-shot acquisition...
Femtosecond laser pulses were spatially modulated with fast reconfiguration of computer-generated holograms (CGHs) using a ferroelectric liquid-crystal-on-silicon spatial light modulator (FLCoS-SLM). Reconfiguration was executed at frame rate more than 1 kHz while changing the CGH every frame. The CGHs designed as binary phases because FLCoS-SLM can represent only values. optimization method modified by weighted iterative Fourier transform algorithm (IFTA) to make phase. fundamental...
Emission from rice straw burning (ERSB) is observed everywhere after harvest of in Niigata Prefecture every year. Pediatricians and many guardians this district have had the impression that ERSB may induce asthma attack. Recent studies suggested particulate air pollution plays a role exacerbation asthma. The authors investigated relationship to attack children.A questionnaire on (RSB) was circulated pediatric institutions. Change monthly number children with (CAA) for 5 years January 1994...
In holographic parallel laser processing, precise control of diffraction peaks is important for fabricating enormous numbers nanometer-scale structures. Although an optimized hologram has high uniformity the in a computer reconstruction, practice, decreased owing to spatial properties optical system. A novel optimization method based on peak intensity measurement proposed improve uniformity. The automatically incorporates system into hologram. Improved femtosecond processing with this...
The fluorinated double-tailed glutarate anionic surfactant, sodium 1,5-bis[(1H,1H,2H,2H-perfluorodecyl)oxy]-1,5-dioxopentane-2-sulfonate (8FG(EO)2), was found to stabilize water-in-supercritical CO2 microemulsions with high water-to-surfactant molar ratios (W0). Studies were carried out here obtain detailed information on the phase stability and nanostructure of by using a high-pressure UV−vis dye probe small-angle neutron scattering (SANS) measurements. spectra, methyl orange as reporter...
A line-shaped beam is useful for increasing the processing speed in laser grooving and scribing. In grooving, depth control of processed structure important performing precise processing. this paper, in-process monitoring a formed by femtosecond with using swept-source optical coherence tomography (SS-OCT) was demonstrated. evaluation SS-OCT system, resolution, measurement accuracy, axial measurable range were 15.8 μm, ±2.5 μm 5.3 mm, respectively. structural shape distribution deposited...