HIGH SPEED SPECTROMETERS

UV-VIS / NIR / SWIR

Optimized for Transient Absorption

These spectrometers work across a broad spectral range (UV-VIS – NIR – SWIR) and are designed to maximize the probe light throughput in HELIOS and EOS spectrometers. They consist of an imaging spectrograph and a high-speed multichannel detector. The spectrograph utilizes a high-efficiency, ion-etched, aberration-corrected holographic grating. After an optical fiber, light travels directly to the grating. The grating simultaneously disperses and refocuses light onto the sensor without the use of any additional mirrors, lenses, etc. The height of the projected spectral image remains virtually the same as the diameter of the input optical fiber, ensuring minimal losses at the sensor. The multichannel detectors have 0.5 mm tall pixels, which are optimal for spectrometry.

Features & Specs

UV-VIS

Sensor Type

CMOS, linear

CCD, linear

Sensor Size

1024 pixels

2048 pixels

Pixel size, μm

25(H) x 500(V)

14(H) x 500(V)

Active area length

25.6 mm

Maximum scan rate

9500 scans/s

2400 scans/s

Sensor spectral response

200 – 1000 nm

Grating spectral range

300 – 900 nm
Can be manually rotated to shift the range by ±50 nm

Spectral resolution

Max – 2 nm (50 μm slit)
Typical – 4 nm (200 μm slit)

Synchronization

Via external trigger or free-run

Dynamic range

>1000 This value corresponds to a 10 ms integration time.
For shorter integration times this value is larger.

Shortest integration time

800 ns

Digitization depth

16 bit

NIR

Sensor Type

InGaAs diode array, linear

Sensor Size

256 pixels

Pixel size

50(H) x 500(V) μm

Active area length

12.5 mm

Maximum scan rate

9500 scans/s

Sensor spectral response

800 – 1700 nm

Grating spectral range

800 – 1700 nm
Can be manually rotated to shift the range by ±50 nm

Spectral resolution

Max – 4 nm (50 μm slit)
Typical – 13 nm (200 μm slit)

Synchronization

Via external trigger or free-run

Dynamic range

>1000 This value corresponds to a 10 ms integration time.
For shorter integration times this value is larger.

Shortest integration time

20 μs

Digitization depth

16 bit

SWIR

Sensor Type

InGaAs diode array, linear

Sensor Size

256 pixels

Pixel size

50(H) x 500(V) μm

Active area length

12.5 mm

Maximum scan rate

9500 scans/s

Sensor spectral response

1600 – 2400 nm

Grating spectral range

1600 – 2400 nm
Can be manually rotated to shift the range by ±50 nm

Spectral resolution

Max – 4 nm (50 μm slit)
Typical – 13 nm (200 μm slit)

Synchronization

Via external trigger or free-run

Dynamic range

>1000 This value corresponds to a 10 ms integration time.
For shorter integration times this value is larger.

Shortest integration time

20 μs

Digitization depth

16 bit

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