研究・研究者
研究会・セミナー
| 演 題 | 「Polarization Dynamics and Microwave Generation with Nd:YAG Lasers」 |
|---|---|
| 日 時 | 2009年05月25日(月) 13:30 |
| 講演者 | Prof. Judith M Dawes （Associate Professor of Physics Macquarie University, Sydney, Australia） |
| 場 所 | 分子科学研究所 研究棟２０１セミナー室 |
| 概 要 | Nd:YAG lasers are versatile devices, which have been thoroughly studied over the past decades. Yet they still yield new phenomena to be discovered and understood! By operating a Nd:YAG laser in two orthogonal polarization modes, with different frequencies, we can generate RF to THz frequencies at the beat signal between the two modes. Such a laser may have applications in defence radar signal analysis, microwave communications, or metrology. Revisiting Lamb's model of laser mode coupling, we have studied the mode coupling between the two modes in various laser systems, and have related this to the beat strength. Our widest tuning range is obtained from a "twisted mode" ceramic Nd:YAG microchip laser. |
| お問合せ先 | 平等拓範（分子制御レーザー開発研究センター） |
