Ames Photonics

Phone (USA): 817-845-4189

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You are here: Home FAQ

Saturday18 November 2017

Yes, certainly. All Ames Photonics detectors are designed to readily interface with nearly every type of commercial spectrometer. We make available a set of standard mounting plates which enable any of the LARRY, GARRY or IRA series to be conveniently mounted to systems such as Oriel models MS127i, MS260i and the FICS, or the Acton SpectraPro 150S or the Spex 500M. Full details are available on the Mounting Hardware page which can be found under the Options and Accessories section of the Products menu at top-left.

What if your spectrometer is not listed here, or you have a custom or home-built system? No problem. We will be happy to design and manufacture a suitable mount at reasonable cost  to allow an Ames Photonics detector to be integrated into your set-up. Please don't hesitate to contact us for further details. 

A CCD, or Charge-Coupled Device, is a device which transports analog electrical signals through a series of successive capacitor stages, controlled by a clock signal. In the case of a CCD detector, the signals consist of the output of an array of photoelectric light sensors. Thus, the CCD serialises the parallel analog signals from such an array detector, permitting its use as an image sensor. Good descriptions of the operation of CCDs may be found here and here.

Ames Photonics offer three families of linear array detectors: the LARRY, GARRY and IRA series. These names are simple acronyms.

"LARRY" stands for Linear ARRAY detector.

"GARRY" stands for Gated linear ARRAY detector.

"IRA" stands for IR linear Array.

All LARRY and GARRY detectors come complete with:

  • 12 bit USB interface
  • choice of SpectraArray software for spectral acquisistion and analysis, or LabVIEW drivers
  • 42.5mm diameter mounting boss face plate
  • In addition, a variety of mounting options are available to facilitate integration with a wide range of lenses and spectrographs. 

The LARRY series comes in three different lengths, corresponding to either 2048, 3000 or 3648 pixels in the CCD array.

The 2048 element CCDs have an individual pixel size of 14 microns (w) x 200 microns (h). The large pixel size makes them an ideal choice for general spectroscopic applications.

The 3000 element linear CCD arrays have a pixel size of just 7 microns (w) x 200 microns (h). This model has been designed to provide an effective trade-off betwen spectral resolution and sensitivity.

Due to their narrower geometry, these 3000-element dectectors will naturally collect only half as much light as a 14 micron wide pixel array, but they also provide twice the spectral resolution.

In practise, the reduction in sensitivity due to narrower pixel size is not a limitation as it can be compensated for at the data-processing stage. To accomplish this, our SpectraArray SL and SpectraNet software packages now support 2x, 4x and 8x horizontal binning. In addition, in-built smoothing algorithms enable these detectors to simulate 14, 28 and 72 micron wide pixel detectors.

The horizontal binning technology can also be applied to the 14 micron wide detector arrays; in this case, individual pixels then appear as 28, 56 and 112 micron wide and signal is increased proportionately.

TCDC (Temperature Compensated Dark signal Correction) patented technology allows automatic dark signal correction at the
detector’s operating temperature. It can only be used under software control. Detectors with the TCDC option must be
ordered with one or more of the four software options.

Yes they are. Our patented Rare earth anti-Stokes upconversion coatings, available on special order, extend the spectral response of LARRY and GARRY detectors into the region below 200nm. Please contact us to discuss your specific requirements if you require this additional UV performance.

Please see our Mounting Hardware page under Options and Accessories in the Products menu at top-left. Here you will find a selection of adapters, mounting flanges, faceplates and more to facilitate interfacing Ames Photonics detectors with a wide range of commercially available instruments. And, if you have a custom requirement, or can't find your spectrometer listed, please contact us. We will be only too happy to discuss designing and manufacturing a suitable mount for your application at reasonable cost.

We certainly do. We believe we offer the most advanced suite of spectroscopic software commercially available. Our Spectrasolve, SpectraArray and other products provide extremely powerful, yet easy-to-use tools to control all aspects of your data collection and analysis. Packages are available for single-user, multi-user, or OEM applications. We also offer a series of advanced software programs for even more sophisticated advanced analysis routines and custom implementations. And because all of our software is designed and developped in-house, we can work with you to assist on even the most complex requirement.  

Our detectors are in use in a very wide range of spectroscopic applications, from scientific research in academic laboratories, to incorporation in sophisticated instrumentation from leading manufacturers. Our technical features, including wide spectral coverage, lack of fringing, choice of pixel sizes and detector lengths, availability of different temporal resolutions and innovations like TCDC and our patented UV-wavelength enhanced sensitivity coatings mean that whatever your requireement, Ames Photonics can supply a detector to suit.

The standard interface supplied with all LARRYand GARRY detectors is 12 bit USB2.0. With this interface and our SpectraArray SL software, up to 30 spectra per second can be captured.

For even faster acquisition, a PCI but interface is available as an option. This allows up to 160 spectra/second to be acquired. However, this option requires software control either via LabVIEW drivers, or our advanced analysis SpectraSolve/SpectraScript software package, or via customer-written routines which can be generated with our OEM developpers kit. Please contact us for further information.