Participating Group (2020-2021)
Precise Measurement of Thermophysical Properties of Soft Crystals and the Understanding of Phase Transitions using Thermal Imaging Technique
Research Outline
Based on the precise measurements of thermo-physical properties of soft crystals during phase transitions, coupled with the thermo-spectroscopic imaging in Infrared wavebands, the unique thermal properties peculiar to the soft crystals are examined. Specifically, (1) the micro-nano scale temperature wave method utilizing the photo-thermal effect induced by the focused laser light input, (2) the simultaneous measurements of thermo-spectroscopy and the fluorescent spectroscopy, (3) the high-resolution ATR-IR imaging and nano-scale FTIR, and (4) the inelastic light and X-ray scattering method for the group velocity of phonon, will be applied to the measurement of anisotropic thermophysical properties, such as thermal diffusivity and thermal effusivity, induced by the external stimulation of light and the mechanical force fields. The relationship between the nano-micro scale molecular anisotropy and the thermal diffusion are the targeted topics to be examined.


Participating Group (2018-2019)
Precise Measurement of Thermophysical Properties of Softcrystals and the thermal control using Thermal Imaging Technique.
Research Outline
Based on the precise measurements of thermo-physical properties of soft crystals during phase transitions, coupled with the thermo-spectroscopic imaging in Infrared wavebands, the unique thermal properties peculiar to the soft crystals are examined. Specifically, (1) the micro-nano scale temperature wave method utilizing the photo-thermal effect induced by the focused laser light input, (2) the simultaneous measurements of thermo-spectroscopy and the fluorescent spectroscopy, and (3) the high-resolution ATR-IR imaging and nano-scale FTIR, will be applied to the measurement of anisotropic thermophysical properties, such as thermal diffusivity and thermal effusivity, induced by the external stimulation of light and the mechanical force fields. The relationship between the nano-micro scale molecular anisotropy and the thermal diffusion are the targeted topics to be examined.
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Publications
Academic papers/reviewed
A03-12
- " Analyses of chemiluminescence reactions of fluorophore-linked 1,2-dioxetane isomers in crystals heating at elevated temperature including a development of a simultaneous measurement method of thermal diffusivity and light emission for a single crystal" C. Matsuhashi, H. Fujisawa, M. Ryu, T. Tsujii, S. Maki, J. Morikawa, T. Hirano, Anal Sci. (2022). (領域内共同研究 A02-02平野)
- "Probe-based microscale measurement set up for the thermal diffusivity of soft materials" M. Ryu, M. Akoshima, J. Morikawa, Rev. Sci. Inst.,93, 044901 (2022).DOI: 10.1063/5.0084891
- "Photothermally Driven High-Speed Crystal Actuation and Its Simulation" S. Hasebe, Y. Hagiwara, J. Komiya, M. Ryu, H. Fujisawa, J. Morikawa,T. Katayama, D. Yamanaka, A. Furube, H. Sato, T. Asahi, H. Koshima, J. Am. Chem. Soc. 143, 8866−8877(2021). (領域内共同研究 A01 小島秀子)DOI: 10.1021/jacs.1c03588
- " Thermal contact conductance at melting and crystallization of metal micro-droplets " A. Minakov, J. Morikawa, E. Zhuravlev, M. Ryu, C. Schick , Mater. Res. Express 7, 066524, (2020).
- " Variations of interfacial thermal conductance at melting and crystallization of an indium micro-particle in contact with a solid " A. Minakov, J. Morikawa, E. Zhuravlev, M. Ryu, C. Schick, Materials & Design, 201, 109475 (2021).
- "Quadrupole modelling of dual lock-in method for the simultaneous measurements of thermal diffusivity and thermal effusivity" M. Ryu, J.-C. Batsale,, *J. Morikawa, Int. J. Heat and Mass Transfer, 162, 120337, (2020).
- "Infrared polariscopy imaging of linear polymeric patterns with focal plane array" R. Honda, M. Ryu, M. Moritake, A. Balcytis, V. Mizeikis, J. Vongsvivut, M. J. Tobin, D. Appadoo, J. L. Li, S. H. Ng, S. Juodkazis and J. Morikawa, Nanomaterials, 2019, 9, 732.DOI: 10.3390/nano9050732
- "Nanoscale optical and structural characterisation of silk" M. Ryu, R. Honda, A. Cernescu, A. Vailionis, A. Balcytis, J. Vongsvivut, J. L. Li, D. P. Linklater, E. P. Ivanova, V. Mizeikis, M. J. Tobin, J. Morikawa, S. Juodkazis, Beilstein J. Nanotechnol., 2019, 10, 922-929.DOI: 10.3762/bjnano.10.93
- "Temperature-Dependent Thermoelastic Anisotropy of the Phenyl Pyrimidine Liquid Crystal" M. Ryu, Y. Cang, Z. Wang, G. Fytas, *J. Morikawa, J. Phys. Chem. C, 123, 17148-17154 (2019).(Supplementary Cover)
- "Hyper spectral mapping of anisotropy" M. Ryu, R. Honda, A. Balcytis, J. Vongsvivut, M. J. Tobin, S. Juodkazis, *J. Morikawa, 2019, Nanoscale Horiz. 4, 1443-1449 (2019).DOI: 10.1039/C9NH00340A
- "Near-Field IR Orientational Spectroscopy of Silk" M. Ryu, R. Honda, A. Reich, A. Cernescu, Jing-Liang Li, Jingwen Hu, S. Juodkazis, J. Morikawa, Appl. Sci. 9 (19), 3991(2019)DOI: 10.3390/app9193991
- "Simple multi-wavelength imaging of birefringence:case study of silk" R. Honda, M. Ryu, J. Li, V. Mizeikis, S. Juodkazis, J. Morikawa, Sci. Rep., 2018, 8, 17652.
- "Paracetamol micro-structure analysis by optical mapping" R. Honda, M. Ryu, A. Balcytis, J. Vongsvivutc, M. J. Tobin, S. Juodkazis, J. Morikawa, App. Surf. Sci., 473, 127-132 (2019).
Award winner
A03-12
- Optics in 2019 30Topics, OSA
- the Top 100 Scientific Reports physics papers in 2018,Nature Research