The Ossila USB Spectrometer G2001A1 is a compact optical spectrometer for UV-Vis-NIR spectroscopy across 320 nm – 1050 nm. It uses a CCD detector with 1600 pixels, accepts light through an SMA 905 fiber or free space, and reaches a resolution of 2.5 nm (FWHM), making it suitable for studying solutions as well as thin film samples.
The instrument draws its power from a computer or laptop through a USB type-C connection, so no separate power supply is needed. Inside, an Arm Cortex M4 processor works with a 16-bit, 500 kSPS analog-to-digital converter, allowing data transfer of up to 100 fps depending on the PC. Internal and external trigger modes, a rolling integration mode and six I/O ports, including a ground port, help it fit into existing optical setups and work alongside other 5V equipment.
Free spectroscopy software handles background spectra, intensity, transmission/reflection and absorbance measurements, with spectral averaging and accumulation, peak detection, and offset and gain adjustment. The device appears as a COM port and can also be controlled through a serial command library from most programming languages.
- Measuring absorbance, transmission and reflection spectra of solutions and thin films.
- Optical characterisation of photovoltaic and solar cell materials.
- Spectral studies of OLED materials.
- Investigating biological and 2D materials in the 320 nm – 1050 nm range.
- Integration into automated optical experiments using external triggering and the serial command library.
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- Product code: G2001A1
- Dimensions (D x W x H): 78 mm x 78 mm x 38 mm
- Weight: 150 g (0.33 lb)
- Wavelength Range: 320 nm – 1050 nm
- Grating Blaze Wavelength: 500 nm
- Resolution (FWHM): 2.5 nm
- Optical Input: SMA 905 fiber or free space
- Entrance Slit Width: 25 µm
- Connection Type: USB type-C
- Communication Protocol: Serial-over-USB
- Dark Noise (at 50 us integration time): <50 counts
- Signal-to-Noise Ratio: >500:1
- Detector Type / Pixels: CCD / 1600
- Analog-to-Digital Converter: 16-bit, 500 kSPS
- Data Transfer Speed (at 50 us integration time): Up to 100 fps (PC dependant)
- Stray Light: <0.2%
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