IndiGo | VIS Handheld Spectrometer

Wavelength Range

380 nm - 780 nm

Resolution

1.5 nm (FWHM)

Grating

600 Lines/mm, 500 nm Blaze

Integration Time

10 ms - 24 s (averaging is possible)

S/N Ratio

≤ 400:1 or ≤ 20,000:1 for HSS models

Dimensions

IndiGo: 76 mm x 45 mm x 53 mm (107 g) | OEM: 100 mm x 68.5 mm x 25 mm (305 g)

IndiGo VIS Handheld Spectrometer: The Power of Spectroscopy at Your Fingertips

Indigo with Data

IndiGo VIS is a compact modular spectrometer that fits in the palm of your hand. This handheld spectrometer can be used for many different applications: it allows measurement of absorption, emission, or transmission spectra from 380 nm to 780 nm with a standard resolution of 1.5 nm (FWHM).

The IndiGo spectrometers are very versatile scientific tools that can easily be integrated into experimental setups to perform many types of measurements involving different types of light sources, cuvette and other sample holders, optical fibers, lenses, and many other elements.

Every IndiGo handheld spectrometer comes with a powerful PC desktop application, but it is also compatible with Android tablets and smartphones equipped with a Bluetooth 5.0 connection for increased mobility.

Using the IndiGo spectrometer to look at the tunability of a supercontinuum laser.

Discover Modularity

fluorescence spectrometer attachment With its optional modules, the IndiGo handheld spectrometer can become a fluorescence spectrometer, a reflection spectrometer or a chemical analyzer that fits in your pocket. To learn more about the many available modules, visit the accessories tab.

You can also visit our application page to discover all of the ways the IndiGo and its modules can be used.

IndiGo OEM

IndiGo OEM version is a robust and compact benchtop spectrometer that runs with a PC desktop application via USB-C connection. IndiGo OEM embeds GoyaLab patented optical transmission technology that offers high precision in a modular design.

The IndiGo OEM is also available as a High Spectral Sensitivity instrument with the IndiGo OEM HSS model.

For more information on Goyalab and its handheld spectrometer products, visit: https://www.goyalab.com/

For the full collection of handheld spectrometers offered by Axiom Optics, click here.

Physical
Model	IndiGo	IndiGo HSS	IndiGo OEM	IndiGo OEM HSS
Dimension	76mm x 45mm x 53mm	76mm x 45mm x 53mm	100mm x 68.5mm x 25mm	100mm x 68.5mm x 25mm
Weight	107g	107g	350g	350g

Spectrometer
Model	IndiGo	IndiGo HSS	IndiGo OEM	IndiGo OEM HSS
Sensor	CMOS OnSemi MT9M001 pixel size: 5,4μm * 5,4 μm * 1024 lines	CMOS Sony IMX334 pixel size: 2μm * 2μm * 1280 lines	CMOS - OnSemi MT9M001 pixel size: 5μm * 5μm * 1024 lines	CMOS Sony IMX334 pixel size: 2μm * 2μm * 1280 lines
Wavelength Range	380 - 780 nm	380 - 780 nm	380 - 780 nm	380 - 780 nm
Spectral Resolution**	1.5nm (FWHM)	1.5nm (FWHM)	1.5nm (FWHM)	1.5nm (FWHM)
Slit (WxH)**	25 μm x 3 mm	25 μm x 3 mm	25 μm x 3 mm	25 μm x 3 mm
Grating	600 lines/mm, 500nm Blaze	600 lines/mm, 500nm Blaze	600 lines/mm, 500nm Blaze	600 lines/mm, 500nm Blaze
Integration Time Range	1ms-24s (multi cycles acquisition available)	1ms-24s (multi cycles acquisition available)	1ms-24s (multi cycles acquisition available)	1ms-24s (multi cycles acquisition available)
Dynamic Range	1000:1	20000:1	1000:1	20000:1
Signal to Noise Ratio	400:1	1000:1	400:1	1000:1

System Configurations
Model	IndiGo	IndiGo HSS	IndiGo OEM	IndiGo OEM HSS
Battery	10h in operation & 24h in standby mode	10h in operation & 24h in standby mode	N/A	N/A
Data Format	.txt – .csv - .spc	.txt – .csv - .spc	.txt – .csv - .spc	.txt – .csv - .spc
Power	5V-750mA	5V-750mA	5V-750mA	5V-750mA

Interfaces
Model	IndiGo	IndiGo HSS	IndiGo OEM	IndiGo OEM HSS
Bluetooth	5.0 Bluetooth low energy	5.0 Bluetooth low energy	N/A	N/A
USB	USB-C	USB-C	USB-C	USB-C
Software	SpectroLab PC or Mobile	SpectroLab PC or Mobile	SpectroLab PC	SpectroLab PC

Calibration
Wavelength	Scientific calibration with Hg/Ar lamp or fast calibration with fluorescent lamp
Intensity	Available in option

**FOR OEM & HSS Versions Only

Options of 15 or 70 μm slit available:

A slit of 15 μm, resolution changes to <0.9 nm
A slit of 70 μm, resolution changes to <3 nm

IndiGo VIS Applications:

Chemical Analysis Involving Absorption, Fluorescence, and Reflection
Education and Research
Gemology and Jewelry
Lighting and Filters Characterization and Identification
Traceability and Authentication
And many more…

Concentration Measurements Using the Beer-Lambert Law

Serial dilutions of blue food colorant — Using the chemical analysis module, the IndiGo handheld spectrometer can be used to perform spectrophotometric analysis via light absorption to determine the concentration of chemical species in solutions.

Characterization of Optical Filters

FB500-40 Bandpass Filter — The IndiGo spectrometer is the ideal tool for the detailed characterization of the transmission properties of spectral filters, or for the identification of mislabeled or misplaced optical elements in a laboratory. In this case, the detailed transmittance properties of a bandpass filter with central wavelength of 500 nm were obtained using the IndiGo spectrometer. The experimental setup for such measurements is quite simple, requiring only the IndiGo spectrometer and a broadband light source.

Field Optical Measurements

IndiGo Spectrometer field measurements — Being a highly portable instrument, the IndiGo handheld spectrometer is the ideal tool for field measurements involving in-situ characterization of absorption, emission, or laser induced fluorescence of samples such as food products. In this example, the fluorescence measurement of tonic water is obtained using the laser module attached to the IndiGo spectrometer without removing the sample from its original container.

The chemical module for the IndiGo spectrometer makes this instrument the most compact visible spectrophotometer on the market for spectrophotometric chemical analysis. Thanks to IndiGo chemical analysis module, an absorption measurement, an optical density (OD) measurement, a concentration measurement (Beer Lamber’s law) or a fluorescence measurement on a liquid contained in a cuvette becomes easy and accessible.

Forget about the trouble involved in separate components coupled by optical fibers and cables. The small but powerful IndiGo handheld spectrometer from GoyaLab easily becomes an all-in-one portable fluorescence spectrometer that fits in the palm of your hand when coupled to the laser fluorescence module. It is the perfect tool for quickly determining the authenticity, purity, and overall quality of chemicals, food products, and many other things. Having appropriate quality check tools that are truly portable, compact, and easy to use is of significant concern at many levels that include production sites, somewhere in the supply chain, and even at the consumer level. In this quick video, we illustrate how easy it is to use the IndiGo spectrometer with the laser fluorescence module to obtain the spectrum of tonic water and extra virgin olive oil, in just one second!

The IndiGo VIS spectrometer from GoyaLab is an incredibly versatile instrument that allows you to perform all sorts of measurements. With its optional modules, it can become a spectrophotometer, a fluorescence spectrometer, or a chemical analyzer that fits in your pocket. For applications that require superior mobility, you can connect it via Bluetooth to a smartphone or tablet. However, it also comes with a powerful and versatile PC desktop application that maximizes the potential of this instrument: SpectroLab. One of the many SpectroLab functionalities allows you to follow the change of spectroscopic features to study, for example, the kinetics of a chemical reaction.

Data Sheets & Brochures

IndiGo Datasheet

IndiGo HSS Datasheet

IndiGo OEM Datasheet

IndiGo OEM HSS Datasheet

Manuals

IndiGo Manual

SpectroLab Manual

Spectrolab

IndiGo is delivered with the SpectroLab application

SpectroLab PC: A PC application for Windows to acquire and analyze spectra (USB-C connection)
SpectroLab Android: An Android application for smartphone and tablet to acquire and analyze spectra (Bluetooth connection)

Goyalab spectrometers come factory calibrated. SpectroLab also offers the possibility to re-calibrate on-site using an Hg/Ar lamp or a fluorescent lamp.

IndiGo VIS Adaptors & Modules

SMA-905 Optical Fiber Adaptor

Indigo handheld spectrometer

This module allows the user to adapt an optical fiber with a standard SMA-905 connector.

LED Excitation Module

IndiGo LED Excitation Module

This module is very useful for measuring fluorescence spectra in various products such as food products, fluorescent inks or taggants, or various impurities, even at trace level.

Laser Module

fluorescence spectrometer attachment

This module includes a laser excitation source at 405nm, 488nm, or 532nm (other wavelengths available upon request) and a set of filters to perform laser-induced fluorescence measurements. This module is very useful for measuring fluorescence spectra in various products such as food products, or various impurities, even at trace level and for the identification of diamonds or other gems.

Cuvette Holder Module

IndiGo Cuvetter Holder Module

This module allows the user to measure spectra in liquids thanks to its cuvette holder. This module offers 2 types of lighting: a white LED for absorption and UV- A LEDs for fluorescence. This module is very useful for qualitative and quantitative chemical analysis involving absorption and fluorescence.

GoLight White Flat Spectrum Broadband Light Source

GoLight

The GoLight provides a flat and continuous spectrum on the visible range and can be instantaneously fixed to the IndiGo thanks to its magnetic setting. You can purchase the GoLight on our online store by clicking HERE.

IndiGo VIS Handheld Spectrometer: The Power of Spectroscopy at Your Fingertips

The IndiGo spectrometers are very versatile scientific tools that can easily be integrated in experimental setups to perform many types of measurements involving different types of light sources, cuvette and other sample holders, optical fibers, lenses, and many other elements.

Using the IndiGo spectrometer to look at the tunability of a supercontinuum laser.