Development of novel light modulator using laser oscillator made from ionic liquid

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K14656
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 32020:Functional solid state chemistry-related
• Research Institution: University of Tsukuba
• Principal Investigator: Yamagishi Hiroshi 筑波大学, 数理物質系, 助教 (40824678)
• Project Period (FY): 2022-04-01 – 2024-03-31
• Keywords: 光共振器 / 有機レーザー / 光センサー / 分子集合

Outline of Final Research Achievements

In this study, I focused on self-standing and robust droplets made from ionic liquids with an aim to develop novel light modultors that convert the light via transmission, refraction, refletion, and resonance in response to the transformation of the droplet. Among reported ionic liquids, I selected imidazolium salts, which have excellent surface tension, and successfully created droplets with an ideal spherical shape and robustness even under atmosphere. By using these droplets, we succeeded in achieving a high-performance organic laser and a highly sensitive pressure sensor. In addition, in the corse of this study, we found several types of organic optical resonators with structural flexibility and affinity toward vapors, demonstrating potential outcomes achievable with organic resonators. These achievements were presented in conference and were published in scientific journals.

Free Research Field

超分子化学

Academic Significance and Societal Importance of the Research Achievements

本研究では、機能性有機材料の分野で研究されてきた液体材料を利用することで新たなレーザー発振子、光共振器、光センサーの作成に成功した。これらの光デバイスはいずれも材料の分子構造に由来する構造的柔軟性、高いプロセス性、化学的な親和性を有している。これらの特徴は無機固体を利用する従来の光デバイスでは実現が極めて困難であり、光デバイスの新たな価値を開拓したと言える。また、無機レーザーに代わる新たなレーザー光源としての研究が進められている有機レーザーの分野において、有機デバイスが光源以外にも多様な価値を生み出しうることが明らかになった点は、大きな学術的意義を持つ。