飛秒(miǎo)泵浦探測光譜(pǔ)儀(yí)

        
ExciPro是一型(xíng)以(yǐ)飛(fēi)秒(miǎo)激光(guāng)器作(zuò)為(wéi)泵(bèng)浦和探(tàn)測光源(yuán)的(dí)瞬(shùn)態吸收光譜儀，是(shì)研(yán)究(jiū)超(chāo)快(kuài)動力(lì)學過(guò)程的得力工(gōng)具(jù)。該(gāi)套(tào)儀(yí)器(qì)基於使(shǐ)用(yòng)簡單，測量的(dí)設計目(mù)的，優(yōu)化使(shǐ)用(yòng)各(gè)種光機(jī)組(zǔ)件，保(bǎo)證了用戶(hù)在使用(yòng)過程中(zhōng)可以(yǐ)將(jiāng)儀器(qì)的維護(hù)工作量降(jiàng)到zui低(dī)。

ExciPro內置了一(yī)台(tái)高精度的光學(xué)延遲綫，通過軟件控(kòng)製(zhì)，可(kě)以精準(zhǔn)地(dì)選擇源自同(tóng)一(yī)台(tái)飛秒激(jī)光器的同(tóng)一光(guāng)脈衝到(dào)達(dá)樣品(pǐn)，發生(shēng)“重(zhòng)疊(dié)”的時(shí)刻，從而可(kě)以逐(zhú)次地通過(guò)綫陣探測(cè)器將(jiāng)不(bù)同(tóng)時刻的(dí)光(guāng)譜(pǔ)采集出來，然(rán)後再借助軟件(jiàn)的分(fēn)析功(gōng)能(néng)，將發生(shēng)在短時(shí)間內(nèi)的瞬(shùn)態吸(xī)收過(guò)程(chéng)，用光譜的(dí)形(xíng)式真實而(ér)全麵(miàn)地記(jì)錄(lù)下來，達成探索超快動(dòng)力學過程的目(mù)的。

飛(fēi)秒(miǎo)泵浦(pǔ)探測光(guāng)譜儀主要技術特點為
：

- 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(zhǔ)要(yào)技術(shù)參數(shù)為
：

- 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