Low price USB optical spectrometer for UV-Vis spectroscopy
Measure the spectrum of light over a wide spectral range, from 320 nm to 1050 nm
The Ossila Optical Spectrometer is a fast, reliable, and compact USB optical spectrometer which brings affordable UV-Vis-NIR (320 nm to 1050 nm) spectroscopy to research scientists around the world. Featuring powerful electronics, precision optics and intuitive software, the device is perfect for a range of optical experiments.
Buy as an independent miniature spectrometer or as a part of our complete optical spectroscopy bundle, which comes with everything you need to get started.
The Ossila spectrometer is built to simplify taking general spectroscopy measurements such as:
- Reflection and transmission measurements
- Scattering experiments
- Absorption measurements
- Luminescence measurements such as photoluminesence and electroluminescence
With our free spectroscopy software, you can begin taking optical measurements straight away. Just plug the optical spectrometer into a PC to get started.
For advanced users, the Ossila Optical Spectrometer is fully programmable, and has a wide compatibility with other optical equipment. The Ossila Optical Spectrometer would fit nicely into most existing UV-Vis-NIR optical spectroscopy setups; a simple command library and internal and external triggers make it easy to fully integrate the device into your workflow.
Complete Optical Spectroscopy Bundle
- Unbeatable Value
- Includes Spectrometer and Accessories
Worldwide Delivery £2400
What is an optical spectrometer?
In general, a spectrometer is a device that separates spectral components of a continuous characteristic such as electromagnetism so that it can be measured. An optical spectrometer takes a beam of light and separates it into its constituent wavelengths using a dispersive element such as a grating or prism, and then measures the relative intensities of these wavelengths using an optical sensing element. Optical spectrometers work primarily in the visible light region of the electromagnetic spectrum, extending into the UV and IR regions, and are used to perform optical spectroscopy.
Optical spectroscopy uses light to probe the properties of materials or structures. By studying the wavelength and intensity of light that is emitted, transmitted, reflected or absorbed by a material or structure, various properties of the sample can be determined. For example, the concentration of molecules in solution can be determined by measuring the light absorbed by the solution, or the thickness of films can be calculated by the reflected light.
Why Choose the Ossila Optical Spectrometer
Low price point
Easy to use
UV-Vis-NIR Dynamic Spectral Range
The Ossila Optical Spectrometer measures the entire visible light spectrum, from the UV-A band to the near infrared (320 nm to 1050 nm).
The optical spectrometer can therefore be used to study a wide range of material systems including photovoltaic, solar cell, OLED, biological, and 2D materials. To minimise the impact of higher diffraction grating orders on the spectra, a filter is included to partially cover the detector when performing spectroscopy in the visible range.
Fast Acquisition Speeds
A powerful Arm cortex M4 processor works with a low-noise, high-speed 16-bit, 500 kSPS analog-to-digital converter (ADC) to provide fast and accurate operation, all powered through a 'plug-and-play' USB type-C connection.
Thanks to its powerful electronics, the optical spectrometer is capable of transferring over 100 frames-per-second to the host computer via the USB cable when running in internal trigger mode. Alongside the USB power and data connector, a six port I/O expansion header allows for easy integration with other 5V equipment.
Free Software or Completely Programmable
The spectrometer system includes powerful spectroscopy software to help you start measuring quickly. Intensity, transmission/reflection and absorbance measurements are all available. Additional features include spectral averaging and accumulation, autosaving, peak detection, offset and gain adjustment, and more.
The system can be integrated with other hardware using the simple serial command interface, compatible with most programming languages. A full list of commands is included in the product manual along with a number of examples in Python to help you get started.
Compact and Modular Design
The clever design of the Ossila Optical Spectrometer closely integrates the optical elements and internal electronics into an extremely small foot print that can be fixed onto an optical bench. The result is a lightweight, compact but powerful UV-Vis-NIR spectrometer.
The Ossila Optical Spectrometer has a high strength enclosure, and is capable of withstanding heavy daily use in the lab. The optional spectrometer case (pictured), included in the complete optical spectroscopy bundle and available to buy separately, also allows it to be bolted to standard optical tables or breadboard plates.
Internal and External Trigger Modes
Use the optical spectrometer in free-running mode, or integrate with other systems using the external trigger input. The unique rolling integration mode, which begins acquisition with a 5V rising edge on the rolling integration port and ends it when the voltage at the port returns to 0V, allows the integration time to be controlled dynamically by external trigger signals.
The optical spectrometer includes an output to synchronise acquisition with an external shutter, and also has two programmable general purpose output pins. In total, it features six I/O ports, including a ground port.
USB Powered, Easy-to-Use
Power the Ossila Optical Spectrometer via the USB port. Designed with efficient electronics that require little power to operate, our optical spectrometer can be easily powered by the included USB-C cable without the need for an additional dedicated power supply. This makes our optical spectrometer portable and versatile.
You can get up and running on our optical spectrometer quickly and easily with either your computer or laptop - simply plug in via the USB port and begin measuring.
I have been using the Ossila Optical Spectrometer in my research to measure absorption, transmission, and reflectivity. I highly recommend it to anyone who is looking for a cheap, fast, reliable and easy-to-use spectrometer for their optical experiments.
Kyriacos Georgiou, PhD, University of Cyprus
Spectrometers and Spectroscopy
- White Light Source
- Transmission Holder
Support and Articles
|Dimensions||78 mm x 78 mm x 38 mm (D x W x H)|
|Wavelength range||320 nm - 1050 nm|
|Grating blaze wavelength||500 nm|
|Resolution (FWHM)||2.5 nm
|Optical input||SMA 905 fibre or free space|
|Entrance slit width||25 um|
|Connection type||USB type-C|
|Dark noise*||< 50 counts
|Signal-to-noise ratio||> 500:1
|Detector type / pixels||CCD / 1600|
|Analog-to-digital converter||16-bit, 500 kSPS|
|Data transfer speed*||Up to 100 fps (PC dependant)|
|Stray light||< 0.2 %|
*measured at 50 us integration time
What does the signal-to-noise ratio mean?
In order for a signal to be useful, it has to be significantly higher than the noise level. Therefore, an important property of spectrometers is the signal-to-noise ratio (SNR or S/N). This is a measure of the sensitivity of the spectrometer and compares the intensity of the signal, i.e. the spectral feature(s) you are looking at, to the intensity of the background noise.
SNR is often defined as the maximum signal height divided by the root mean square (RMS) of the noise in the background signal. It can be expressed as a ratio (e.g. 500:1) or in decibels (dB). If the ratio is greater than 1:1 (0 dB), the signal is greater than the noise.
The Ossila Optical Spectrometer has a signal-to-noise ratio of > 500:1.
|Complete Optical Spectroscopy Bundle||£2400|
|Ossila Optical Spectrometer||£1250|
|Ossila Spectroscopy Software||FREE|
The Ossila Optical Spectrometer is eligible for FREE worldwide shipping and is covered by our two year warranty as standard.
The Ossila Optical Spectrometer comes with powerful spectroscopy software which makes it quick and easy to control the device and start collecting data. Take background spectra and measure intensity, transmission / reflection and absorbance measurements in just a few clicks. The spectroscopy software also features spectral averaging and accumulation, peak detection, offset and gain adjustment, and more - all via a straightforward user interface.
Software updates are provided at no extra charge and are available to download from our website.
No programming required
The Ossila Optical Spectrometer can be controlled via the spectroscopy software. Setting up a spectroscopy experiment and taking optical measurements has never been easier. No programming knowledge required.
Intuitive and easy-to-use
The Ossila spectroscopy software has been designed to be intuitive and easy to use. Spectra workspaces allow you to take multiple spectra and view important numerical data at a glance. Common features and settings can be accessed via the quick access bar at the top of the screen.
Multiple measurement modes
The Ossila Optical Spectrometer spectroscopy software makes it straight-forward to take measurements in five different measurement modes: intensity, intensity (background corrected), intensity (sensitivity corrected), transmission / reflection, and absorption.
Optional serial command interface
Serial commands can be sent to the optical spectrometer via the spectroscopy software. Alternatively, the spectrometer can be controlled via serial commands sent from most programming languages.
Using the supplied optical spectroscopy software and a suitable optical set up, the Ossila Optical Spectrometer can measure transmission, reflectivity, scattering, absorption, and luminescence (including photoluminescence, fluorescence, phosphorescence, and electroluminescence) over a wavelength range of 320 nm to 1050 nm.
These methods have a wide range of applications across a number of different fields. They can be used to characterise LEDs and lasers, measure the efficiency of (anti)reflection coatings at various wavelengths, probe absorbing materials to reveal information about their atomic structures, and detect fluorescence. In photovoltaics, the Ossila Optical Spectrometer can be used to measure both the source spectrum (i.e. the solar spectrum) and the absorption spectrum of the device so that the two can be compared.
|Operating Systems||Windows 10|
|CPU||Dual Core 2.0 GHz|
|Available Hard Drive Space||300 MB|
|Monitor Resolution||1280 x 960|
To install the spectroscopy PC software, download the latest version from our website or insert the supplied USB memory stick into your computer and run the "Ossila-Spectrometer-Installer-vX-X-X-X.exe" file. Once installed, plug the optical spectrometer in via the supplied USB type-A to USB type-C cable. When launched, the software will automatically detect any Ossila Optical Spectrometers connected to the PC.
The Ossila Optical Spectrometer can be controlled using a simple serial command library; the device will appear as a COM port when connected to a PC. Commands can be sent via the command window in the spectroscopy software or via most programming languages. A full list of commands and example code is included in the user manual.
Optical Spectrometer Accessories
Low price accessories and supplies for optical spectroscopy.
To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, military, pharmaceuticals, cosmetics, food, or commercial applications.