Spectroscopy Solutions - Mid-Focal Length Imaging Spectrometer – iHR Series

320 mm and 550 mm focal length high performance and versatile imaging spectrometers

HORIBA’s most popular and iconic spectrometers, the iHR series build on decades of experience in spectroscopy and represent the highest quality, performance and versatility of any spectrometer in this class. The iHR 320 and iHR 550 spectrometers are immediately recognizable around the world by their unique shape, the result of a superior optical design. These spectrometers benefit from the highest quality of gratings, also designed and manufactured by HORIBA.

Two spectrometers to choose from

  • 320 mm focal length f/4.1

  • 550 mm focal length f/6.4

Segment: Scientific
Division: Custom Spectroscopy Solutions
Base product
Manufacturing Company: HORIBA Scientific

Best in class performance

  • Widest range of applications
  • Widest selection of options
  • No re-diffracted light
  • Fully automated
  • Best in class resolution
  • Best in class image quality
  • Dual entrance & exit ports

Overview

Unique optical design

Not all Czerny-Turner spectrometers are built the same

No one has more experience in designing and manufacturing spectrometers than HORIBA Scientific. When we designed the iHR we made a quantum leap forward in the traditional Czerny-Turner design and developed an asymmetrical spectrometer that is patented and immediately recognizable by its distinctive shape and design. With zero re-diffracted light, correction for optical aberrations, multi-track image capabilities and more options than any competitor, the iHR series offers best in class performance and flexibility.
For more details on the outstanding performance characteristics of this unique spectrometer, refer to our technical note, titled “Not all Czerny-Turner spectrometers are made the same”.

Inherent Benefits

 iHR SeriesCompetitioniHR Benefits
Housing manufactureSingle CastingPanelsBetter stray light rejection
Size of entrance & exit swing away mirrorsExit greater than entranceExit the same as entranceNo vignetting and homogeneous illumination of CCD
Non-crossed Czerny-Turner asymmetric opticsYesNoNo re-diffracted light to present spurious signals
On-axis grating rotation with single motor triple grating turretYesNoPatented design ensures uniform illumination
Dual entrance portYesNoFlexibility
Dual exit portYesNoFlexibility, no vignetting
Up to 4 single channel detectors or 2 single channel and one arrayYesNoFlexibility and broad spectral coverage

Hardware

The iHR series of spectrometers stand out in the field of standard Czerny-Turner spectrometers.  They are manufactured from a single solid casting to eliminate light leaks and provide the strongest, most stable possible housing for the instrument.  The computer optimized asymmetric optical path and patented on-axis grating drive improve image quality, while eliminating re-diffracted light and maximizing optical throughput.  In addition, the use of toroidal mirrors corrects for astigmatism at the center of the focal plane, providing flexibility to work in either an imaging or resolution optimized configuration.

The iHR series spectrometers are fully automated; all motors are computer controlled including slits, gratings, turret rotation, and swing mirrors.  There are four optional ports, two entrance and two exit, that can be utilized in any combination of two inputs and two outputs. The two optional output ports can be configured with either slits or array flanges for use with multichannel detectors.

Slits

The monochromator slits are adjustable automated slits with two available options; 0 to 2 mm opening with 2.25 micron step size and 0 to 7 mm opening with 6.25 micron step size.  A manually adjustable height limiter allows the user to quickly shut or open the light path to 1 mm and 15 mm heights.

You can add accessories to the HR series spectrometers to obtain optimum results for a variety of applications. To attach the accessories to the iHR, use the two tapped holes on the body of the slit. These holes are also useful for connecting the iHR with your experiments and equipment. When connecting with the iHR, it is important to know the distance from the mounting face of the slit’s body to the slits.

Note that some custom accessories require removal of the height-limiter assembly in order to be attached to the iHR chassis. To remove the height-limiter assembly, remove the four screws holding the assembly onto the chassis.

 

World Class Diffraction Gratings Manufactured by HORIBA

A Proud Tradition of Excellence

With the acquisition by HORIBA of Jobin Yvon, a spectroscopy company founded in 1819, HORIBA Scientific continues to define the leading edge of the Optics of Spectroscopy.

For the last 40 years HORIBA Scientific has taken a leading position in the design, development and manufacture of master and replica diffraction gratings. HORIBA Scientific diffraction gratings are found in both high volume OEM instruments and in world class cutting edge scientific applications. Our pattern of leadership in optics has been hallmarked by the continuing development of both classically ruled and holographic diffraction grating technologies. This led to the introduction in 1967 of the aberration corrected holographic grating and subsequently ion etched and blazed concave and plane holographic gratings.

The iHR series of spectrometers take full advantage of the highest quality of gratings that HORIBA designs and manufactures.

A Vast Array of Choices

There is a wide selection of gratings to choose from depending on optical requirements.  Gratings are 68 x 68 mm for the iHR320 and 76 x 76 mm for the iHR550. There are three different types of gratings available; classically ruled, holographic, and blazed holographic. 

Ruled gratings

Select for applications where high throughput or low groove density is required, or when working in the infrared.  Typically, they have high throughput at the cost of higher stray light.

Holographic gratings

Available in higher groove densities for finer resolution requirements and are excellent choices for experiments with laser excitation such as Raman or laser induced photoluminescence.  They provide the lowest possible stray light possible, sometimes at the cost of lower throughput.

Blazed holographic gratings

These gratings have the same advantages as holographic gratings with better throughput.

Groove Density

Ruled gratings and blazed holographic gratings have two fundamental parameters to choose from; the groove density, expressed in grooves (or lines) per millimeter, and the blaze angle which nominally refers to the peak reflectance wavelength expressed in nanometers.

The groove density of the selected grating affects the resolution and mechanical scanning range of the monochromator.  Below is a reference chart showing the affect groove density has on the mechanical scanning range of the monochromator as well as the reciprocal linear dispersion of the slits.

Groove Density

Mechanical Scanning Range (nm)*

Reciprocal Linear Dispersion (nm/mm)

iHR320

iHR550

2,400 g/mm

0 to 750 nm

0.87 nm/mm

0.53 nm/mm

1,200 g/mm

0 to 1,500 nm

2.29 nm/mm

1.34 nm/mm

600 g/mm

0 to 3,000 nm

4.91 nm/mm

2.83 nm/mm

300 g/mm

0 to 6,000 nm

10.06 nm/mm

5.75 nm/mm

150 g/mm

0 to 12,000 nm

20.30 nm/mm

11.58 nm/mm

*High grating efficiency can be attained at up to 80% of the maximum mechanical scanning range, after which the grating efficiency decreases.

The triple grating turret that comes standard with the iHR series allows you to select three different gratings, to optimize throughput in different wavelength ranges and provide multiple options for different resolution requirements. The gratings are positioned in a patented on-axis turret design to provide the maximum possible mechanical tuning range while preventing beam walk-off. For even greater flexibility, the entire triple grating turret assembly can be easily and very quickly replaced with a different triple grating turret assembly, and the patented turret design assures proper alignment and on axis grating rotation.

Below is a comprehensive list of available gratings for the iHR series of spectrometers. Other gratings are also available upon request.

Ruled Gratings

Groove Density L/mm

Blaze Wavelength

Recommended Spectral Range

Blaze Angle

Part Numbers

iHR320 68x68 mm

iHR550 76x76 mm

1800

300 nm

150-600 nm

17°27'

510 01 120

510 01 141

1800

500 nm

250-850 nm

26°45'

510-02-120

510 02 141

1800

630 nm

350-850 nm

34°32'

510 03 120

Not Available

1200

250 nm

150-500 nm

8°38'

510-04-120

510-04-141

1200

330 nm

200-700 nm

11°25'

510-05-120

510-05-141

1200

400 nm

200-800 nm

13°53'

510-06-120

510-06-141

1200

500 nm

250-950 nm

17°27'

510-07-120

510-07-141

1200

750 nm

400-1200 nm

26°45'

510-09-120

510-09-141

1200

1µm

500-1200 nm

36°52'

510-10-120

510-10-141

900

350 nm

200-700 nm

9°00'

510 91 120

510 91 141

900

550 nm

250-1100 nm

14°30'

510-93-120

510-93-141

900

1.5 µm

600-1700 nm

42°27'

510-97-120

510-97-141

600

300 nm

200-600 nm

5°10'

510-11-120

510-11-141

600

400 nm

250-800 nm

6°54'

510-12-120

510-12-141

600

500 nm

250-1000 nm

8°38'

510-13-120

510-13-141

600

750 nm

400-1500 nm

13°00'

510-14-120

510-14-141

600

1µm

500-1700 nm

17°27'

510-15-120

510-15-141

600

1.5 µm

750-2400 nm

26°45'

510-16-120

510-16-141

600

2 µm

1000-2400 nm

36°52'

510-17-120

510-17-141

300

250 nm

150-500 nm

2°09'

510-50-120

510-50-141

300

500 nm

300-950 nm

4°18'

510-18-120

510-18-141

300

600 nm

350-1300 nm

5°10'

510-19-120

510-19-141

300

1 µm

700-2000 nm

8°38'

510-20-120

510-20-141

300

2 µm

1100-4500 nm

17°27'

510-21-120

510-21-141

300

3 µm

1700-5000 nm

26°45'

510-22-120

510-22-141

300

4 µm

2000-5000 nm

36°52'

510-23-120

510-23-141

150

500 nm

250-950 nm

2°09'

510-49-120

510-49-141

150

1.2 µm

800-2300 nm

5°10'

510-24-120

510-24-141

150

2 µm

1200-4000 nm

8°38'

510-25-120

510-25-141

150

4 µm

2.2 - 9 um

17°27'

510-26-120

510-26-141

150

5 µm

3.5 - 10 um

22°01'

510-27-120

510-27-141

150

6 µm

4 - 10 um

26°45'

510 28 120

510 28 141

150

8 µm

5 - 10 um

36°52'

510 29 120

510 29 141

120

2-5 µm

1.7 - 4.5 um

8°39'

510-30-120

510-30-141

120

5 µm

3 - 10 um

17°27'

510-31-120

510 31 141

120

7-5 µm

4.5 - 12 um

26°45'

510-32-120

510-32-141

100

450 nm

250-950 nm

1°17'

510-48-120

510-48-141

100

3 µm

1.7 - 6 um

8°38'

510 33 120

510 33 141

100

6 µm

3 - 13 um

17°27'

510 34 120

510 34 141

100

9 µm

5 - 14.5 um

26°45'

510 35 120

510 35 141

75

4 µm

2 - 8 um

8°38'

510-36-120

510-36-141

75

8 µm

5.5 - 17 um

17°27'

510 37 120

510 37 141

75

12 µm

8 - 19 um

26°45'

510-38-120

510-38-141

60

10 µm

7.5 - 13 um

17°27'

510 39 120

510 39 141

60

15 µm

9 - 24 um

26°45'

510 40 120

510 40 141

50

6 µm

3 - 12 um

8°38'

510-41-120

510-41-141

50

12 µm

8 - 22 um

17°27'

510-42-120

510-42-141

50

18 µm

11 - 28 um

26°45'

510-43-120

510-43-141

50

24 µm

15 - 30 um

36°52'

510-44-120

510-44-141

40

22-5 µm

14 - 30 um

26°45'

510 45 120

510 45 141

30

30 µm

N/A

26°45'

510 46 120

510 46 141

20

45 µm

N/A

26°45'

510 47 120

Not Available

Holographic Gratings

Groove Density L/mm

Recommended Spectral Range

Part Numbers

iHR320
68x68 mm

iHR550
76x76 mm

3600

150-400 nm

520-07-120

520-07-141

3000

250-450 nm

520-09-120

520-09-141

2400

300-600 nm

520-12-120

520-12-141

2400

170-500 nm

520-13-120

520-13-141

2400

100-300 nm

520 14 120

520 14 141

2000

450-650 nm

520 15 120

520 15 141

2000

190-650 nm

520 16 120

520 16 141

2000

150-450 nm

520 17 120

520 17 141

2000

100-300 nm

520 18 120

520 18 141

1800

450-850 nm

520 -19 -120

520 -19 -141

1800

190-700 nm

520 -20 -120

520 -20 -141

1800

150-450 nm

520 21 120

520 21 141

1800

100-300 nm

520 22 120

520 22 141

1200

400-1200 nm

520 -24 -120

520 -24 -141

1200

190-700 nm

520 -25 -120

520 -25 -141

1200

150-450 nm

520 -26 -120

520 -26 -141

600

400-1300 nm

520 -29 -120

520 -29 -141

600

150-450 nm

520 30 120

520 30 141

150

250-800 nm

520 32 120

520 32 141

150

400-1200 nm

520 33 120

520 33 141

Blazed Holographic Gratings

Groove Density L/mm

Blaze Wavelength

Recommended Spectral Range

Part Numbers

iHR320 
68x68 mm

iHR550 
76x76 mm

2400

250 nm

190-600 nm

530-13-120

530-13-141

2400

330 nm

200-600 nm

530-11-120

530-11-141

2400

400 nm

300-600 nm

530-15-120

530-15-141

1800

500 nm

450-850 nm

530 19 120

530 19 141

1800

250 nm

180-650 nm

530-20-120

530-20-141

1800

400 nm

250-850 nm

530-18-120

530-18-141

1200

250 nm

190-450 nm

530-25-120

530-25-141

1200

330 nm

240-800 nm

530-22-120

530-22-141

1200

500 nm

300-1000 nm

530-24-120

530-24-141

1200

630 nm

400-1200 nm

530-27-120

530-27-141

1200

750 nm

500-1200 nm

530-28-120

530-28-141

1200

900 nm

600-1200 nm

530-50-120

530-50-141

950

900 nm

700-1700 nm

530-60-120

530-60-141

900

850 nm

700-1700 nm

530-66-120

530-66-141

600

500 nm

300-1000 nm

530-29-120

530-29-141

600

1000 nm

700-1750 nm

530-34-120

530-34-141

The Diffraction Grating Calculator below can be used to determine the various optical performance specifications of HORIBA spectrometers when used in conjunction with selected spectroscopy cameras, point detectors and various grating alternatives. It is a very useful tool with pull down selections of all of our current spectrometers, cameras and gratings.

Computer Control

All monochromator controls are fully automated including slit widths, turret position, wavelength, and swing mirror position.  Slit widths may be set in step sizes of 2.25 micron for the 0 – 2 mm slit option and 6.25 micron steps for the 0 – 7 mm slit option.  The turret position may be changed to switch from one grating to another and the wavelength may be tuned for the grating currently selected.  The swing mirror position on either the entrance or exit of the monochromator can be adjusted to axial or lateral ports to switch between different entrance or exit front or side ports.

Computer Control

There are multiple software platforms to choose from for spectrometer control and acquisition.

LabSpec

HORIBA’s world renowned software platform, LabSpec is ideal for most Raman and photoluminescence applications. It offers advanced capabilities, with expert functionality, control and flexibility. LabSpec is the first choice for most spectrometer customers.

SynerJY™

SynerJY™ software is a fully integrated data acquisition and data analysis program for spectroscopic systems. It is selected for custom spectroscopy configurations not suitable for LabSpec.

LabVIEW™

LabVIEW VI’s are now available for the complete line of instrumentation from the Optical Spectroscopy Division, allowing users to work with the LabVIEW™ development package from National Instruments. This option requires proficiency with LabVIEW™ programing.

SDK

Software Development Kits (SDK’s) are available for programmers who wish to write their own software control of HORIBA spectrometers. This option absolutely requires proficiency with programing

Schematics

iHR320, Top View

iHR320, Front View

iHR 550 Top View

iHR550 Front View

Compatible Optical Building Blocks

The iHR series spectrograph is one of many inter-connectible Optical Building Blocks available from HORIBA Scientific. These Optical Building Blocks can be ordered together to form a subassembly or even a complete custom spectroscopy solution.

Fiber Light Guides

We offer a selection of fiber optic and liquid light guides to choose from depending on the application.

Lens based fiber-coupler with f/# matching optics for SMA and ferrule (part number 220F, or 220F-AFC for FC Mount fibers).

Direct fiber-coupler with no optics for 10 mm and 0.25″ ferrule with thumbscrew x-y adjusters, (part number AFO-XY)

Mirror based fiber-coupler for 10 mm ferrule (part number J23078640). Contact us for information about SMA and FC adapters.

Simple fiber-adapter for 0.25″ ferrule (part number 120F).

Internal Filter Wheels

UV-Vis: iHR internal filter wheel mounts at the entrance port only (not suitable for side entrance). The  UV-Vis part number is AFW-IHR-UVVIS, and it include a blank window, 320 nm LP and 550 nm LP filters. 3 mm filter-thickness only.

NIR: iHR internal filter wheel mounts at the entrance port only (not suitable for side entrance). The  near-IR part number is AFW-IHR-NIR, and it includes a blank window, and 1000 nm LP filters. 1 mm filter-thickness only.

 

Optical Choppers

If you would like to use an optical chopper with your spectrograph/monochromator, then we have a number of solutions. To learn more Optical Accessoriesclick here.

 


Single Channel Detectors

HORIBA offers a comprehensive array of single point detectors for a wide variety of applications in spectroscopy and biomedical research. These are complete detectors including housings, power supplies and facility for cooling if necessary. Used in conjunction with our monochromators and spectrographs these detectors allow you to configure a custom solution for your unique requirements. To learn more, click here.

 

Spectroscopy Cameras

HORIBA Scientific offers a complete line of spectroscopic multi-channel detectors for scientific research. For spectral detection from UV to near-IR, two dimensional CCDs and indium gallium arsenide linear arrays offer a faster acquisition option over single point detectors with very high sensitivity. Coupled with HORIBA’s range of aberration corrected, flat field imaging spectrographs, custom spectroscopy packages can be assembled for a variety of applications. To learn more, Spectroscopy Camerasclick here.

 

Broad Band Light Sources

HORIBA Scientific has an excellent selection of broadband light sources. If you would like to couple the spectrograph/monochromator to one of these light sources, then we have adapters to physically connect them and create a tunable illuminator. To learn more about our broad band light sources, Light Sourcesclick here. Incidentally, if you are looking for such a tunable illuminator we have a separate page describing our Tunable PowerArccompact tunable illuminator, and our ultimate KiloArc™ tunable illuminator.

 

Specifications Using standard 1200 line/mm ruled grating at 435 nm

 

iHR320

iHR550

Focal length

320 mm

550 mm

Aperture ratio

f/4.1

f/6.4

Wavelength range

150 to 1500 nm with 1200 gr/mm grating
180 nm to 40 microns (grating dependent)

Flat Field Size

30 mm x 12 mm

Bandpass

Continuously adjustable from 0 to 16 nm (1,200 g/mm)

Continuously adjustable from 0 to 9 nm (1,200 g/mm)

Reciprocal linear dispersion at slit

2.31 nm/mm (1,200 g/mm)

1.34 nm/mm (1,200 g/mm)

Resolution with exit slit and PMT

0.06 nm (1,200 g/mm)

0.025 nm (1,200 g/mm)

Stray Light (measured at 1 nm from 514 nm laser with HORIBA Scientific holographic gratings)

1.5 x 10 -4 (typical)

1 x 10 -5 (typical)

Accuracy

+/- 0.2 nm

Scan Speed

160 nm/s

Step Size

0.002 nm

Reproducibility

+/- 0.075 nm

Optical path height

98 mm

Grating size

68 x 68 mm

76 x 76 mm

Slit adjustment

0 to 2 mm width (2.25 micron step size) 
0 to 7 mm width (6.25 micron step size)
1 mm or 15 mm height (manual slider)

Monochromator Dimensions

 

iHR320

iHR550

 

 

Length

417 mm long (16.4 inches)

648 mm long (25.51 inches)

Width

422 mm wide (16.6 inches)

460 mm long (18.09 inches)

Height

192 mm high (7.6 inches)

193 mm long (7.78 inches)

Weight

20 kg (45 lbs)

28 kg (62 lbs)

All specifications given for 1200 g/mm grating at 435 nm and are subject to change without notice.

Raman and Resonance Raman Spectroscopy of Enzymes
Raman and Resonance Raman Spectroscopy of Enzymes
Photoluminescence of InGaAs/GaAs Quantum Dots
Photoluminescence of InGaAs/GaAs Quantum Dots
Low Temperature Macro Photoluminescence and PLE System
Low Temperature Macro Photoluminescence and PLE System
Photoluminescence and Photoreflectance
Photoluminescence and Photoreflectance
iHR Series Brochure
CategoryDocuments
Size 1.48 MB
FiletypePDF
iHR550 Specification Sheet
CategoryDocuments
Size 1.35 MB
FiletypePDF

REQUEST FOR INFORMATION

Do you have any questions or requests? Use this form to contact our specialists.