Basic Knowledge of Terahertz Waves and Applications of Metamaterials in the Terahertz Region
S30622
★Application of metamaterials as electromagnetic wave absorbers in the terahertz region ★Methods for utilizing new materials along with basic knowledge of terahertz waves
**Lecture Summary** Recently, metamaterials have gained attention with keywords such as negative refraction and invisibility cloaks. These materials aim to control light and electromagnetic waves in ways that differ from conventional methods through artificial structures, but many aspects are still not well known to the general public. In this lecture, I will introduce the necessary foundational knowledge about metamaterials, their concepts, the current state of research and development, and future developments with an eye toward applications. In particular, I will discuss metamaterials related to the terahertz region, an area of electromagnetic waves that has recently garnered attention for its applications.
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Venue Tokyo Chuo Ward Industrial Hall, 4th Floor, Meeting Room 4 [Tokyo, Chuo Ward] Toei Asakusa Line, Higashi-Nihonbashi Station, 4 minutes from B3 Exit towards Asakusabashi/ Oshiage Toei Shinjuku Line, Bakuroyokoyama Station, 5 minutes via underground passage from B4 Exit Date and Time June 25, 2013 (Tuesday) 13:30-16:30 Instructor Lecturer from the Department of Physical Sciences, Faculty of Science, Shinshu University
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37800
Price range
P2
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P2
Applications/Examples of results
**Program** 1. Basic knowledge for understanding metamaterials 1.1 Basic concepts of metamaterials 1.2 Characteristics of metamaterials 1.3 Unique optical properties of metamaterials 1.3.1 Negative refraction phenomenon 1.3.2 Coordinate transformation medium - invisibility cloak - 1.4 How to create metamaterials? 2. Basic knowledge of terahertz waves 2.1 What are terahertz waves? 2.2 Characteristics of terahertz waves 2.3 Current status of terahertz wave applications 3. Applications of metamaterials to terahertz waves 3.1 Basic properties of terahertz metamaterials 3.1.1 Basic properties 3.1.2 Random systems and periodic systems 3.1.3 Near-field interactions 3.1.4 Multi-frequency resonance 3.1.5 Increased Q factor due to asymmetry 3.1.6 Temperature dependence 3.1.7 Polarization dependence 3.2 Applications to modulation devices 3.3 Applications to perfect absorbers 3.3.1 Terahertz wave perfect absorbers 3.3.2 Efforts for broadbanding 3.4 Applications to sensing devices 3.5 Attempts at bulk metamaterials
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