HR4000CG-UV-NIR

HR4000CG-UV-NIR spectrometer - SpectrecologyThe HR4000CG spectrometer uses a unique compound grating to provide excellent efficiency in both the UV and NIR ranges. The larger optical bench provides greater resolution than with our smaller benches.

The HR4000 (and the HR2000+) are also available in custom configurations, using any of the gratings up to 2400 mm-1 to provide exceptional resolution.

 

Engineering Specifications HR4000CG-UV-NIR
PHYSICAL
Dimensions: (L x W x H) mm and inches 148.6 x 104.8  x 45.1 mm (5.9 x 4.1 x 1.8 in.)
Weight: kg and lb 0.57 kg (1.26 lbs.)
DETECTOR
Type: Toshiba TCD1304AP
Range: 190 – 1100 nm
Quantum efficiency: no
SPECTROSCOPIC
Wavelength range: 200 – 1100 nm
Integration time: 4 milliseconds to 20 seconds (continuous); 10 microseconds to 4 milliseconds (shutter)
Dynamic range: 2 X 109 (system); 2000:1 for a single acquisition
Signal-to-noise ratio: 300:1 (at full signal)
Grating: HC-1, 300 lines per nm grating
Slit: 5 µm wide
Optical resolution: <1.0 nm FWHM (note: resolution varies at either end of the spectral range)
Stray light: <0.05% at 600 nm; <0.10% at 435 nm
Buffering: no
Fiber optic connector: SMA 905 to single-strand optical fiber (0.22 NA)
ELECTRONICS
Power consumption: 450 mA @ 5 VDC
Strobe functions: 2 programmable strobe signals (single/continuous)
Interfaces: USB 2.0, 480 Mbps; 2-wire RS-232; I2C 2-wire serial bus
Temperature: -30° to +70° C Storage & -10° to +50° C Operation
Humidity: 0% – 90% non-condensing

 

 

HR4000 HC grating efficiency - Spectrecology

Custom HR4000 specifications

 

Engineering Specifications HR4000 Custom (user configured)
PHYSICAL
Dimensions: (L x W x H) mm and inches 148.6 x 104.8  x 45.1 mm (5.9 x 4.1 x 1.8 in.)
Weight: kg and lb 0.57 kg (1.26 lbs.)
DETECTOR
Type: Toshiba TCD1304AP
Range: 190-1100 nm
Pixels: 3648
SPECTROSCOPIC
Wavelength range: 200-1100 nm
Integration time: 4 milliseconds – 20 sec (continuous); 10 microseconds – 4 milliseconds (shutter)
Dynamic range: 3.4 x 106 (system); 1300:1 for single acqusition
Signal-to-noise ratio: 300:1 (at full signal)
Grating: H1 – H14; HC-1
Slit: 5, 10, 25, 50, 100 or 200 µm wide slits
Optical resolution: ~0.02-8.4 nm FWHM
Stray light: <0.05% at 600 nm; <0.10% at 435 nm
Buffering: no
Fiber optic connector: SMA 905 to single-strand optical fiber (0.22 NA)
ELECTRONICS
Power consumption: 450 mA @ 5 VDC
Strobe functions: 2 programmable strobe signals (single/continuous)
Interfaces: USB 2.0, 480 Mbps; 2-wire RS-232; I2C 2-wire serial bus
Temperature: -30 °C to +70 °C Storage & -10 °C to +50 °C Operation
Humidity: 0%-90% non-condensing

 

 

HR Custom Configured Gratings and Wavelength Range

Gratings for Ocean Optics spectrometers are permanently fixed in place at the time of manufacture to ensure long-term performance and stability. Choose from among multiple gratings for your custom configured spectrometer. When selecting your grating, consider groove density (resolution), spectral range (wavelength range) and blaze wavelength (determines the most efficient range). We offer ruled and holographic diffraction gratings. Holographic gratings produce less stray light while ruled gratings are more reflective, resulting in higher sensitivity.

Tip: Use our interactive Range & Resolution Calculator to determine your spectrometer’s anticipated optical resolution over a specific wavelength range.

Grating Number

Intended
Use

Groove Density

Spectral
Range

Blaze
Wavelength

Best Efficiency
(>30%)

HC-1

UV-NIR

300/600 (variable)

900 nm

variable

200-1050 nm

H1

UV

600

425-445 nm

300 nm

200-575 nm

H2

UV-VIS

600

415-445 nm

400 nm

250-800 nm

H3

VIS-Color

600

410-440 nm

500 nm

350-850 nm

H4

NIR

600

410-430 nm

750 nm

530-1100 nm

H5

UV-VIS

1200

205-220 nm

Holographic UV

200-400 nm

H6

NIR

1200

140-195 nm

750 nm

500-1100 nm

H7

UV-VIS

2400

72-102 nm

Holographic UV

200-500 nm

H9

VIS-NIR

1200

165-205 nm

Holographic VIS

400-800 nm

H10

UV-VIS

1800

 95-140 nm

Holographic UV

200-635 nm

H11

UV-VIS

1800

75-135 nm

Holographic VIS

320-800 nm

H12

UV-VIS

2400

60-100 nm

Holographic VIS

250-575 nm

H14

NIR

600

410-420 nm

1000 nm

650-1100 nm

H33

Absorbance

300

200 nm

200-450 nm

H35

NIR Raman

1200

1000 nm

525-1625 nm

H36

VIS Raman

900

500 nm

325-1225 nm

H5U

Absorbance

1200

250 nm

225-450 nm

H7U

Absorbance

2400

240 nm

200-800 nm

H10U

Absorbance

1800

250 nm

210-475 nm

*For applications > 720 nm, please consult an Application Sales Engineer.

Groove Density:

The Groove Density (mm-1) of a grating determines its dispersion, while the angle of the groove determines the most efficient region of the spectrum. The greater the groove density, the better the optical resolution possible, but the more truncated the spectral range.

Spectral Range:

The dispersion of the grating across the linear array; also expressed as the “size” of the spectra on the array. The spectral range (bandwidth) is a function of the groove density and does not change. When you choose a starting wavelength for a spectrometer, you add its spectral range to the starting wavelength to determine the wavelength range. For several gratings, the Spectral Range of a grating varies according to the starting wavelength range. The rule of thumb is: the higher the starting wavelength, the more truncated the spectral range.

Blaze Wavelength:

For ruled gratings, the Blaze Wavelength is the peak wavelength in an efficiency curve. For holographic gratings, it is the most efficient wavelength region.

Best Efficiency (>30%):

All ruled or holographically etched gratings optimize first-order spectra at certain wavelength regions; the “best” or “most efficient” region is the range where efficiency is >30%. In some cases, gratings have a greater spectral range than is efficiently diffracted. For example, Grating H1 has about a 430 nm spectral range, but is most efficient from 200-575 nm. In this case, wavelengths >575 nm will have lower intensity due to the grating’s reduced efficiency.