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Terahertz-wave parametric generation and applications

机译：太赫兹波参数生成和应用

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After more than a dozen years of basic research into the submillimetei and fat infrared range, terahertz (THz) wave research has finally come into its own, and is recognized by the world scientific community as a new frontier. While femtosecond laser pumped THz wave sources have opened up a new vista in applied research, the ideal THz wave source will likely require high coherence and wide tunability. When this level of quality is finally made available in a user-friendly device, there is little doubt that applied research efforts into the THz region will enjoy a true renaissance. In this direction we have developed a widely tunable injection seeded THz-wave parametric generator (is-TPG) that operates at room temperature. The spectral resolution is the Fourier transform limit of the nanosecond THz wave pulses. In our laboratory, THz-waves continue to broaden their range of applications as following. We have developed a basic technology for THz imaging which allows detection and identification of drugs concealed in envelopes by introducing the component spatial pattern analysis. On the other hand, for inspecting electrical failures in large scale integration circuit, we developed the laser-THz emission microscope, which records the map of THz emission amplitude in a sample upon excitation with fs laser pulses.
机译：经过十几年的基本研究进入亚马里纤维和肥胖的红外范围，太赫兹（Thz）波浪研究终于进入自己，并被世界科学界认可为新的边境。虽然飞秒激光泵浦的波浪源在应用研究中开辟了新的Vista，但理想的Thz波源可能需要高相干和可调性。当最终在用户友好的设备中最终提供这种质量水平时，毫无疑问地将应用研究努力达到THZ地区将享受真正的文艺复兴。在这个方向上，我们开发了一种可调谐的喷射播种的Thz波参数发生器（IS-TPG），其在室温下运行。光谱分辨率是纳秒THz波脉冲的傅里叶变换极限。在我们的实验室中，THZ-Waves继续扩大他们的应用范围。我们开发了一种用于THz成像的基本技术，允许通过引入组件空间图案分析来检测和鉴定隐藏在信封中的药物。另一方面，为了检查大规模集成电路中的电气故障，我们开发了激光THZ发射显微镜，其在用FS激光脉冲激发时记录样品中的THz排放幅度的地图。

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