(光谱仪)ExciPro飞秒泵浦探测光谱仪

  • 2023-02-20 15:05:13
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飞秒泵浦探测光谱仪

ExciPro是一型以飞秒激光器作为泵浦和探测光源的瞬态吸收光谱仪,是研究超快动力学过程的得力工具。该套仪器基于使用简单、测量的设计目的,优化使用各种光机组件,保证了用户在使用过程中可以将仪器的维护工作量降到zui低。ExciPro内置了一台高精度的光学延迟线,通过软件控制,可以精准地选择源自同一台飞秒激光器的同一光脉冲到达样品,发生“重叠的时刻,从而可以逐次地通过线阵探测器将不同时刻的光谱采集出来,然后再借助软件的分析功能,将发生在短时间内的瞬态吸收过程,用光谱的形式真实而全面地记录下来,达成探索超快动力学过程的目的。

飞秒泵浦探测光谱仪主要技术特点为:

- Turnkey transient absorption pump-probe femtosecond spectroscopy system- Multichannel and single-channel detection of photoinduced optical density changes (Delta OD).- Detection of transient absorption in solutions, thin films and solid samples- < 100 fs temporal resolution- Probe and reference channels- Computer controlled imaging spectrometer with four-grating turret- NMOS linear image sensors with high signal-to-noise ratio- Internal all reflective white light continuum generator- Internal second harmonic generator for the sample excitation- Optional CDP 2017 optical parametric amplifier for single-channel probe- ExciPro 2.5 software for data acquisition, transient spectra analysis and chirp compensation

主要技术参数为:

- Multichannel visible probe spectral range: 350 nm - 1000 nm- Multichannel infrared probe spectral range: 900 nm - 1600 nm- Single-channel probe spectral range: 250 nm - 2500 nm- Maximum delay between probe and excitation pulses: 2.0 ns (4.0 ns in the optional double-pass configuration)- Minimum step of the optical delay line: 1.56 fs- Maximum pulse repetition rate at multichannel detection: 1 kHz

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