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At a Glance |
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NIRQuest512 |
NIRQuest512-2.2 |
NIRQuest256-2.1 |
NIRQuest256-2.5 |
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Detector: |
Hamamatsu G9204-512
InGaAs linear array |
Hamamatsu G9204-512W
InGaAs linear array |
Hamamatsu G9206-256
InGaAs linear array |
Hamamatsu G9208-256
InGaAs linear array |
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Detector Range: |
850-1700 nm |
900-2200 nm |
900-2100 nm |
900-2550 nm |
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Useable range1: |
900-1700 nm |
900-2200 nm |
900-2050 nm |
900-2500 nm |
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Pixels: |
512 |
512 |
256 |
256 |
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Pixel size: |
25 µm x 500 µm |
25 µm x 250 µm |
50 µm x 500 µm |
50 µm x 500 µm |
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Entrance aperture: |
25 µm wide slit
(standard); also, custom
options (10, 50, 100 or 200
µm wide slits) or fiber
(no slit) |
25 µm wide slit
(standard); also, custom
options (10, 50, 100 or 200
µm wide slits) or fiber
(no slit) |
25 µm wide slit
(standard); also, custom
options (50, 100 or 200
µm wide slits) or fiber
(no slit) |
25 µm wide slit
(standard); also, custom
options (50, 100 or 200
µm wide slits) or fiber
(no slit) |
|
Fiber optic connector: |
SMA 905 |
SMA 905 |
SMA 905 |
SMA 905 |
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Grating options
(standard): |
Grating NIR3, 150 l/mm,
900-1700 nm |
Grating NIR2, 100 l/mm,
900-2050 nm |
Grating NIR2, 100 l/mm,
900-2050 nm |
Grating NIR1, 150 l/mm,
1075-2500 nm |
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Grating options
(custom): |
Gratings NIR10, NIR11,
NIR12, NIR13 and NIR14 |
Gratings NIR2, NIR3,
NIR10, NIR11, NIR12 and NIR13 |
Gratings NIR2, NIR3,
NIR10, NIR11, NIR12 and
NIR13 |
Gratings NIR2, NIR3,
NIR10, NIR11, NIR12 and
NIR13 |
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Longpass filter2: |
OF1-RG830
longpass NIR filter
(optional) |
OF1-RG830
longpass NIR filter
(optional) |
OF1-RG830
longpass NIR filter
(optional) |
OF1-RG830
longpass NIR filter
(optional) |
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Wavelength range: |
900-1700 nm
w/Grating NIR3 |
900-2150 nm
w/Grating NIR2 |
900-2050 nm
w/Grating NIR2 |
900-2500 nm
w/Grating NIR1 |
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Optical resolution
(FWHM)3: |
~3.1 nm w/25 µm slit |
~4.6 nm w/25 µm slit |
~7.6 nm w/25 µm slit |
~ 9.5 nm w/25 µm slit |
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Signal-to-noise ratio at
full signal4: |
>15000:1 @ 100 ms
integration
>13000:1 @ 1000 ms
integration |
>10000:1 @ 100 ms
integration |
10000:1 @ 100 ms
integration |
7500:1 @ 10 ms
integration |
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A/D resolution: |
16-bit |
16-bit |
16-bit |
16-bit |
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Dark noise: |
6 RMS counts @ 100 ms
12 RMS counts @
1000 ms |
6 RMS counts @ 100 ms
12 RMS counts @
250 ms |
6 RMS counts @ 100 ms
12 RMS counts @ 250 ms |
8 RMS counts @ 10 ms
12 counts RMS @ 30 ms |
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Dynamic range: |
15 x 10^6 (system);
5000:1 for a single
acquisition |
15 x 10^6 (system);
1000:1 for a single
acquisition |
5 x 10^6 (system);
5000:1 for a single
acquisition |
3 x 10^5 (system);
5000:1 for a single
acquisition |
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Integration time5: |
1 ms-120 seconds |
1 ms-2000 ms |
1 ms-2000 ms |
1 ms-60 ms |
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Corrected linearity: |
>99.8% |
>99.8% |
>99.8% |
>99.8% |
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Computer interfaces: |
USB 2.0 @ 480 Mbps;
RS-232 (2-wire) @ 115.2
K baud |
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Wireless (Wi-Fi)
interface: |
Yes, with
Remora adapter |
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Wi-Fi range: |
25 meters in free space |
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1
“Useable
range” is defined in the
context of the NIRQuest
model’s detector
response and its typical
grating response. For
example, the 512-element
detector has response at
850 nm, but grating
response begins at 900
nm. The G9206
256-element detector
response is sensitive to
TEC temperature, and has
response only to 2050 nm
when the TEC is set to
-20 ºC. The G9208
256-element detector has
response to 2550 nm, but
the grating efficiency
drops off at 2500 nm.
2
Other
filter options are
available for
order-sorting in the
NIRQuest256-2.1 and
NIRQuest256-2.5. Please
contact an Applications
Scientist for details.
3
Optical resolution (FWHM)
depends on grating and
slit selection.
4
SNR will decrease at
longer integration
times.
5 Maximum
integration times are
defined as the longest
amount of time one can
integrate the
spectrometer before the
dark level rises to half
of full scale.
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