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無以倫比的性能與靈活的擴展性

TriVista三級聯光譜儀是真正的科研級儀器，具有業界中無以倫比的高性能與高靈活性。TriVista的核心是在Acton SpectraPro系列光譜儀，其本身就具有高分辨率，壓制雜散光，成像性能好，可重復性高等優點。基于這樣的基礎，TriVista三級聯譜儀進一步提升性能，追求非常高的準確度和可重復性.

TriVista工作波長從200nm到2.2μm。整個工作范圍的光譜分辨率可高達 3pm ，超強的雜散光抑制能力可以保證在拉曼光譜實驗中采集到瑞利峰5個波數的數據.

超強的雜散光抑制能力

無以倫比的分辨率

多入口多出口設計

靈活的設計與操作——可以三級聯用，也可以單獨使用，或者任意選擇組合方式

非常先進的光譜實驗需要超高分辨率和超強的雜散光抑制，TriVista專為這樣的實驗而設計，旨在為科研工作者提供極好的靈活性和非常好的成譜能力。TriVista三級聯光譜既可以在加法模式下操作來達到超高的分辨率，也可以在減法模式下操作以實現優異的雜散光抑制.

用戶可利用TriVista多入口多出口的特點來搭建不同的實驗，例如UV-Raman和光致發光，可以通過軟件來實現兩個實驗之間的快速切換。 可使用不同的激光波長，同時搭建多臺實驗設備，使得TriVista成為一個性價比高的高端產品.

TriVista的應用包括:

拉曼光譜

光致發光

TriVista offers excellent spectral resolution in additive mode. Data taken with TriVista 555.

Suberb Stray Light Rejection in Subtractive Mode. Data taken with TriVista 555.

Model

Focal Length

Aperture Ratio

Spectral Resolution*

Dispersion*

TR555

1500 mm (A)500 mm (S)

f/6.5

0.21 cm-1 (A)0.6 cm-1 (S)

37 cm-1 /mm (A)12.5 cm-1 /mm (S)

TR557

1750 mm (A)750 mm (S)

f/9.7

0.17 cm-1 (A)0.4 cm-1 (S)

34 cm-1 /mm (A)8.5 cm-1 /mm (S)

TR777

2250 mm (A)750 mm (S)

f/9.7

0.13 cm-1 (A)0.4 cm-1 (S)

26 cm-1 /mm (A)8.5 cm-1 /mm (S)

DM55

1000 mm (A)

f/6.5

0.29 cm-1 (A)

49 cm-1/mm (A)

DM77

1500 mm (A)

f/9.7

0.21 cm-1 (A)

37 cm-1/mm (A)

Fig 1A

Single configuration - all three stages can be used simultaneously and independently for three different projects.

Figure 1A

FIg 1B and 1C

Typically， the TriVista is utilized as a double or triple system. When the light beam is passed sequentially through 2 or 3 stages and the gratings coherently move together with very high precision. Some common reasons researchers choose a double or triple system are the high spectral resolution and the high stray light rejection.

Figure 1C

These important parameters can be accomplished by utilizing different modes of TriVista operation:

1. Additive mode gives high spectral resolution and high linear dispersion.

2. Subtractive mode gives high stray light rejection.

Tip-Enhanced Raman Spectroscopy

TERS - Tip-Enhanced Raman spectroscopy

Surface-Enhanced Raman Spectroscopy

SERS - Surface-enhanced Raman spectroscopy

Resonance Raman Spectroscopy

Instead of fluorescence， some types of colored molecules produce strong Raman scattering at certain conditions. This effect was called Resonance Raman.

X-Ray Spectroscopy

X-ray absorption spectroscopy is an element-specific probe of the local structure of elements in a material.

Stimulated Raman Scattering

Stimulated Raman scattering takes place when an excess of Stokes photons that were previously generated by normal Raman scattering are present or are deliberately added to the excitation beam.