Acton Series LS 785
Tunable NIR Spectrometer
The Acton LS 785 from Princeton Instruments is a powerful lens-based instrument ideal for spectroscopists working in the near-IR region. The LS 785 is a high-throughput tunable Raman spectrometer that features a micrometer controlled grating, allowing the user to access the NIR between 750 nm and 1100 nm. At an aperture of f/2, the LS 785 is perfectly matched to an optical fiber input and offers >4X the throughput of a standard f/4 mirror-based spectrograph. With its fast AR-coated compound lenses from our Acton Optics group, and a custom gold-coated grating, the LS 785 provides the highest throughput and best imaging commercially available in the NIR.
FEATURE
BENEFITS
Complete system offerings with Princeton
Instruments deep depletion CCD detectors
Choose from various camera models for the highest performance and sensitivity,
with a peak QE of 95%
Working range between 750 nm and
1100 nm, with micrometer adjustable
coverage
Provides wide spectral coverage when using lasers from 785nm to 830nm: with
Raman shifts of 126 cm-1 to 2340 cm-1 with 785nm excitation and 126 cm-1 to
2040 cm-1 with 830nm excitation
NIR optimized f/2 refractive optics
Provides the highest throughput and imaging quality available in the NIR
Gold-coated 1200 gr/mm grating
Optional 830 gr/mm grating
Offers the highest efficiency as well as the flattest response in the working spectral
region, with resolution of 5 cm-1 or better
Custom designed AR coatings
Every optical surface in the lens assemblies has over 99% transmission throughout
the entire working range of the spectrograph
Optional: LightField® 64-bit software with
IntelliCal™ spectrograph calibration system
Powerful cutting-edge user interface, complete control over spectrometers & cameras,
easy-to-use tools for experimental setup, data acquisition and post-processing.
Wide range of accessories available
Including slit shutter, fiber adapters, edge/notch filter assemblies
SPECIFICATIONS
Aperture Ratio:
f/2
Spectral Resolution:
5 cm-1 with 25 micron fiber
Dispersion (nm/mm):
6.12 nm/mm at 900 nm
Wavelength Coverage:
785 - 1100 nm
Image Curvature:
2.5 Pixels or less
Astigmatism:
120 mm or less with 1200 gr/mm grating
Total System Throughput
68% or greater
Dimensions
Height: 6“, Width: 18“, Depth: 12“, Weight: 24.5 lbs (11.2 kg)
Raman Shift Coverage
Excitation
Working
Coverage
Lowest Range
Highest Range
Wavelength (nm)
Range (cm-1) *
(cm-1)
Covered (cm-1)
Covered (cm-1)
785
126 to 3635
3500
126 to 2340
2000 to 3635
830
126 to 2950
2824
126 to 2040
1400 to 2950
* With optional edge filter assembly.
Acton LS 785 with Universal Fiber Adapter and
PIXIS 400BR_eXcelon Deep Depletion CCD
Camera
Acton LS 785 Spectrometer Configurations
The Acton LS 785 can be purchased with a Princeton Instruments PIXIS or PyLoN deep depletion CCD detector, creating a complete system. The PIXIS and PyLoN® deep depletion CCDs are proprietary CCDs that feature dual readout amplifiers (low noise and high capacity) and 3 software selectable gains for superior sensitivity or high signal to noise.
CCD SPECIFICATIONS (See individual CCD datasheets for more information)
Models
CCD Detector
Pixel Formats
available
(model)
Pixel Size
(mm)
Image Area
(mm x mm)
Max.
Cooling
Peak
QE @
800nm
Typical
Dark Current
100BR_eXcelon
PIXIS
1340 x 100
20 x 20
26.8 x 2.0
-80°C
98%
0.03 e-/p/s
400BR_eXcelon
(TE cooled)
1340 x 400
20 x 20
26.8 x 8.0
-75°C
98%
0.03 e-/p/s
100BR_eXcelon
PyLoN
1340 x 100
20 x 20
26.8 x 2.0
-120°C
98%
2 e-/p/s
400BR_eXcelon
(LN cooled)
1340 x 400
20 x 20
26.8 x 8.0
-120°C
98%
2 e-/p/s
商品属性 [波长范围] 785 - 1100 nm [光学分辨率] 5 cm-1 with 25 micron fiber [Aperture Ratio] f/2