參考價格
面議型號
品牌
產(chǎn)地
俄羅斯樣本
暫無看了Avesta AA-M顯微鏡掃描自相關(guān)儀的用戶又看了
虛擬號將在 180 秒后失效
使用微信掃碼撥號
AA-M顯微鏡掃描自相關(guān)儀
特點(diǎn):
20 fs-12 ps脈寬范圍
外接和內(nèi)置光電探測器
掃描頻率,0.1-20 Hz
線性畸變:<1 %
USB接口和軟件
全反射光學(xué)元件
位置測量
條紋分辨自相關(guān)函數(shù)
無摩擦運(yùn)動
旁路功能
AA-M提供兩個同時測量點(diǎn):一個位于顯微鏡焦平面上,另一個位于儀器的光學(xué)頭位置,比如,顯微鏡輸入之前。測量的這兩個脈寬值進(jìn)行對比決定了顯微鏡光學(xué)元件色散帶來的脈沖展寬。顯微鏡中超短脈沖的大多數(shù)應(yīng)用是表征顯微鏡焦點(diǎn)處光束的時間和空間輪廓。這些測量結(jié)果對任何實驗都很重要,脈沖越短,非線性成像過程(雙光子激發(fā))的效率越高,實驗成功需要的激發(fā)能量越少。在決定樣品曝光時需要光束參數(shù)表征,確保圖像好和正確的強(qiáng)度水平,因為錯誤的值可能會導(dǎo)致樣品損壞。
儀器使用USB接口,可以連接Windows操作系統(tǒng)的計算機(jī)。提供多種軟件工具。采集的脈寬數(shù)據(jù)可視化,可存儲或?qū)С鰐xt或dat文件??梢杂嬎悴崟r顯示自相關(guān)函數(shù)和*終FWHM飛秒脈寬。而且,可以高斯或雙曲線擬合,也可查看強(qiáng)度函數(shù)。統(tǒng)計分析功能可以對幾個單獨(dú)的脈沖測量結(jié)果進(jìn)行對比。
AA-M | |
Possible full wavelength range* | 450-2000 nm |
Subranges*(exchangeable photodetectors/beam splitter sets) | V**: 450-700 nm R1: 700-1300 nm R2: 1300-2000 nm |
Input pulse duration range | 20 fs -12 ps |
Number of photodetectors for one range | two (internal and external for sample position) |
Input pulse repetition rate | >10 kHz |
Typical sensitivity (Pav*Ppeak) | 100 mW2 |
Input polarization | linear, horizontal (vertical upon request) |
Scan rate | 0.1-20 Hz |
Linear distortion | <1% |
Collinear (interferometric and intensity) autocorrelation | yes |
PC connection | USB, Windows PC acquisition and analysis software is included in the standard package |
Necessary equipment | Windows PC platform or an oscilloscope |
Signal source and detector | Two-photon conductivity in semiconductor |
Dimensions | 210x164x132 mm (optical unit) 225x190x45 mm (control unit) 70х55х16.5 mm (external photodetector) |
* - the autocorrelator may cover one, two or all three subranges with exchangeable photodetectors/beam splitter sets (1, 2 or all 3 sets may be included in the package depending on required laser source specifications); ** - the 450-700 nm subrange may only be purchased with the main unit order. |
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