About

We study quantum nanostructures in low-dimensional materials to uncover phenomena and drive innovations in nanotechnology and quantum technologies.

Quantum Light Sources

Atomically precise quantum emitters in van der Waals materials via functionalization engineering.

Photophysics

Understanding nanoscale phenomena in carbon nanotubes and 2D materials through advanced spectroscopy.

Optoelectronics

High-performance 2D material devices combining nanofabrication with quantum nanostructures.

Recent News

JST LOTUS Programme: Japan-India Joint Research Fellowship

We are looking for highly motivated and excellent graduate students and postdoctoral fellows from India to join our group through the LOTUS Programme. If you are interested, please …

Our deterministic functionalization paper is featured as Research Highlight

Our recent work on deterministic fabrication of single-photon emitters in carbon nanotubes has been featured as a RIKEN Research Highlight. Reference D. Kozawa, Y. Shiota, M. Wang, …

Farewell Party for Astha and Rajendra featured image

Farewell Party for Astha and Rajendra

Celebrating Astha's completion of the NIMS-ICGP program and bidding farewell to Astha and Rajendra.

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Astha Khandelwal
Astha and Madhu presented posters at 1st Workshop on Physical Properties of Two-Dimensional Materials featured image

Astha and Madhu presented posters at 1st Workshop on Physical Properties of Two-Dimensional Materials

Astha and Madhusmita presented their research at the 1st Workshop on Physical Properties of Two-Dimensional Materials at NIMS, with Astha winning first place in the poster …

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Astha Khandelwal

Appointed as JPS Area Committee Member

As of October 1, 2025, Daichi has been appointed as a committee member of Area 7 (Molecular Solids and Organic Conductors) of the Physical Society of Japan. Area 7 promotes …

Paper Published in Nano Letters: Deterministic Formation of Single Organic Color Centers in Carbon Nanotubes featured image

Paper Published in Nano Letters: Deterministic Formation of Single Organic Color Centers in Carbon Nanotubes

Our research on deterministic formation of single organic color centers in carbon nanotubes has been published in Nano Letters, representing a significant advancement in quantum …