INTRODUCTION Dear customer, After being over 20 years in this industry I am still excited and proud to present to you our new catalog. In this 9th edition we show you our instruments for fiber optic spectroscopy. As the leading innovator in the development and application of miniature spectrometers we continue to develop and introduce new instruments. Avantes instruments and accessories are also integrated into many OEM applications in many industries and markets throughout the world. With over 2 decades of experience in fiber optic spectroscopy and thousands of instruments in the field, Avantes is...

NEW IN THIS CATALOG Avantes is proud to announce the latest additions to our extensive line of products. The highlights are: New improved and more compact Halogen lightsource. EVO Series; AvaSpec-ULS2048L-EVO the next step in spectroscopy! GigaEthernet and USB3.0 communication, more memory and fast data processing. Using the latest CMOS technology, this spectrometer offers you the latest technology; ready for the next decade! Miniture sized specrometer with integrated electronics for OEM users. Great combination of UV/VIS and NIR spectrometer offering a broadband measurement solution. page 60...

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Optical Bench Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 How to configure a spectrometer for your application?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 How to choose the...

Reflection Probes with Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Reflection Probes with Small Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Reflection Probes for Powders and Thick Fluids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 1 2 / ” Industrial Reflection Probes for Powders...

INTRODUCTION A spectroscopic instrument or spectrometer generally consists of entrance slit, collimator, a dispersive element, such as a grating or prism, focusing optics and detector. In a monochromator system there is normally also an exit slit, and only a narrow portion of the spectrum is projected on a one-element detector. In monochromators the entrance and exit slits are in a fixed position and can be changed in width. Rotating the grating scans the spectrum. The development of micro-electronics during the 90’s in the field of multi-element optical detectors, such as Charged Coupled Devices...

Thanks to the need for fiber-optics in the communication technology, low absorption silica fibers have been developed. Similar fibers can be used as measurement fibers to transport light from the sample to the optical bench of the spectrometer. The easy coupling of fibers allows a modular build-up of a system that consists of light source, sampling accessories and fiber-optic spectrometer. Furthermore fiber-optic enable the introduction of sampling into harsh and difficult to access environments. The modularity, flexibility and speed of measurement made possible by fiber-optic spectrometers have...

Optical Bench Design The heart of most AvaSpec fiber-optic spectrometers is an optical bench with 37.5, 45, 50, 75 or 100 mm focal length, developed in a symmetrical Czerny-Turner design. Light enters the optical bench through a standard SMA-905 connector and is collimated by a spherical mirror. A plain grating diffracts the collimated light; a second spherical mirror focuses the resulting diffracted light. An image of the spectrum is projected onto a 1-dimensional linear detector array. Avantes AvaSpec-HS1024X58/122 high-sensitivity spectrometers have a revolutionary new optical bench design with...

Avantes offers 15 different detector types with each different sensitivity curves (see figure 3, page 18 and figure 4, page 20). The AvaSpec instrument line is divided into multiple groups based upon general requirements. The AvaSpec-Starline is comprised of general purpose UV/VIS instruments with low-cost CCD detectors. The AvaSpec Sensline is comprised of higher performance back-thinned CCDs and thermo-electrically cooled CCDs UV/ VIS instruments. The instruments are particularly better in the UV and NIR relative to standard CCD detectors. The AvaSpec NIRLine is comprised of instruments with InGaAs...

Spectrometers Application Biomedical Chemometry Color Fluorescence Fruit-sugar Gemology High-resolution High UV/NIR-Sensitivity Irradiance Laserdiode LED LIBS Raman Solar Thin Films UV/VIS/NIR NIR AvaSpec-type Grating FWHM Resolution (nm) OSC-UA OSC OSC OSC The grating can only be changed by Avantes. Therefore, choose your grating wisely. Our application specialists are available to support you with your choice. In general, a higher resolution means a lower bandwidth. By combining multiple spectrometers in our AvaSpec-Dual or rack-mountable versions, you can create one virtual spectrometer with...

How to choose the right Grating? A diffraction grating is an optical element that separates incident polychromatic radiation into its constituent wavelengths. A grating consists of series of equally spaced parallel grooves formed in a reflective coating deposited on a suitable substrate. The way in which the grooves are formed separates gratings in two types, holographic and ruled. The ruled gratings are physically formed onto a reflective surface with a diamond on a ruling machine. Gratings produced from laser constructed interference patterns and a photolithographic process are known as holographic...