2021 Fiscal Year Research-status Report
On-chip chiral biosensor based on superchiral-field-enhanced Raman optical activity
| Project/Area Number |
20K14785
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Xiao Tinghui 東京大学, 大学院理学系研究科(理学部), 助教 (50869675)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | silicon photonics / optical biosensor / Raman optical activity |
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| Outline of Annual Research Achievements |
We demonstrated a novel on-chip biosensor, which is composed of a silicon nanodisk array that tailors a chiral field to significantly increase the interaction between the excitation light and chiral molecules via exploiting a dark mode. Specifically, we used the array with pairs of chemical and biological enantiomers to show >100x enhanced chiral light-molecule interaction with negligible artifacts for ROA measurements.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
We demonstrated a novel on-chip chiral biosensor based on superchiral-field-enhanced Raman optical activity as we initially planned.
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| Strategy for Future Research Activity |
Based on the on-chip chiral biosensor based on Raman optical activity we developed in this fiscal year, we will further explore its practical applications in various research fields.
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| Causes of Carryover |
Due to the COVID-19, some article costs and travel expenses could not be used as my previous plan. I will rearrange and use this incurring
amount in the next fiscal year to help further accelerate the progress of this research project.
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