Will enhancement of infrared absorption occur even with nanostructures other than metals?

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K13619
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials chemistry
• Research Institution: Hirosaki University
• Principal Investigator: SHIMADA Toru 弘前大学, 教育学部, 講師 (40450283)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 表面増強赤外吸収 / 電子線リソグラフィー / 増強機構 / 低次元 / 周期配列 / 厳密結合波解析

Outline of Final Research Achievements

Infrared absorption enhancement on non-metal nanostructures were studied in this research. The fabrication method of a large area line & space structure of silicon was developed by using the electron beam lithography technique. The line & space nanostrucure of silicon was used for infrared absorption measurements.The theoretical enhancement factor of the infrared absorption was estimated by the regorous coupled-wave analysis (RCWA) method. Although the factor of enhancement of infrared absorption is inferior to that of conventional metal nanostructures, it was suggested that the enhancement of infrared absorption occurs even in nanostructures other than metals. This result opens the way to using SEIRA also in research areas where the application of it was limited by the existence of metal so far.

Free Research Field

分光学