Our dream in this research project

Area Representative: Takashige Omatsu (Chiba University)

Chirality, in which a chiral object cannot be superimposed onto its mirror image, plays an important role as a universally important concept in materials science. For instance, chemists have been intensively studying how to selectively synthesize only left- or right-handed chemical compositions. The origin of homochirality of biomolecules, in which only left- (right-) handed amino acids (saccharides) exist selectively in nature, is still not understood clearly. Helical materials, which exist frequently in nature, typically exhibit chirality.

In recent years, it has been discovered that irradiation by structured light (which possesses orbital angular momentum associated with its helical wavefront) twists a variety of materials to form helical structures on a nano/micron-scale. This phenomenon will offer the potential development of energy-saving, space-saving, resource-saving, and cost-saving innovative technologies for chiral crystallizations, fabrication of chiral materials with extremely giant circular dichroism, tissue engineering based on engineered multiple-helices, and manipulation of topologically protected textures in solid-states/condense-matter. However, there are still challenges in understanding and controlling this phenomenon fully.

This transformative research area project aims to establish a new fundamental science and advanced technology to fabricate nano- or micron-scale engineered helical structures with exotic physical properties beyond natural helical materials by employing structured light fields with singularities and nearfield optics.

This project also aims to encourage collaborative and complementary research, mobility, and promotion of early-career researchers and young students.

Topics

2024.06.21
Yasuyuki Tsuboi and Ken-ichi Yuyama (Osaka Metropolitan University) has published a research article in Advanced Optical Materials. Yasuyuki Tsuboi and Ken-ichi Yuyama (Osaka Metropolitan University) has published a research article in Advanced Optical Materials.
2024.06.04
Hiromi Okamoto (Institute for Molecular Science) has published a research article in Advanced Optical Materials. Hiromi Okamoto (Institute for Molecular Science) has published a research article in Advanced Optical Materials.
2024.06.04
Takashige Omatsu (Chiba University) has published a research article in the journal “Optica.” Takashige Omatsu (Chiba University) has published a research article in the journal “Optica.”
2024.05.28
Yoshito Tanaka and Shun Hashiyada (Hokkaido University) has published a research article in Review of Scientific Instruments. Yoshito Tanaka and Shun Hashiyada (Hokkaido University) has published a research article in Review of Scientific Instruments.
2024.05.17
Hiromi Okamoto (Institute for Molecular Science) has published a research article in The Journal of Physical Chemistry C. Hiromi Okamoto (Institute for Molecular Science) has published a research article in The Journal of Physical Chemistry C.
2024.05.17
Dr. Junsuke Yamanishi of Institute for Molecular Science (B01 Okamoto group) and Mr. Rihito Tamura of Chiba University (C01 Omatsu group) received the excellent presentation award from Japan Society of Applied Physics.
2024.04.08
Takashige Omatsu (Chiba University), Praveen Kumar (Indian Institute of Technology, Birai), and Natalia M. Litchinitser (Duke University) have published a collaborative research article from APL Photonics. Takashige Omatsu (Chiba University), Praveen Kumar (Indian Institute of Technology, Birai), and Natalia M. Litchinitser (Duke University) have published a collaborative research article from APL Photonics.
2024.03.14
Takashige Omatsu (Chiba University) and Ken-ichi Yuyama (Osaka Metropolitan University) have published a collaborative research article from APL Photonics. Takashige Omatsu (Chiba University) and Ken-ichi Yuyama (Osaka Metropolitan University) have published a collaborative research article from APL Photonics.
2024.03.14
Takayuki Umakoshi (Osaka University) has published a research article in Nano Letters. Takayuki Umakoshi (Osaka University) has published a research article in Nano Letters.
2024.02.20
The research paper, authored by Prof. Teruki Sugiyama from Nara Institute of Science and Technology and National Yang-Ming Chiao Tung University, along with Prof. Keiji Sasaki from Hokkaido University, who serves as an advisor on this research project, has been published in The Journal of Chemical Physics. The research paper, authored by Prof. Teruki Sugiyama from Nara Institute of Science and Technology and National Yang-Ming Chiao Tung University, along with Prof. Keiji Sasaki from Hokkaido University, who serves as an advisor on this research project, has been published in The Journal of Chemical Physics.
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