Spectroscopy White Papers and Case Studies

  1. Using 1064 nm Dispersive Raman Systems For Analysis Of Petroleum Products
    6/18/2019

    Raman spectroscopy is a non-invasive, highly sensitive technology that quantitatively probes and analyzes chemical compositions and structures without the need for sample preparation. In the past, this technology was not useful for petroleum and petroleum-based products due to their high levels of high level of photoluminescence that can overwhelm Raman signals in all visible wavelengths. This issue is now resolved by BaySpec’s line of 1064 nm excitation dispersive Raman systems that offer maximum reduction in fluorescence interference.

  2. Using 1064 nm Dispersive Raman Systems In Biofuel And Plant Research
    6/18/2019

    Raman spectroscopy is a non-invasive, highly sensitive technology that quantitatively probes and analyzes chemical compositions and structures without the need for sample preparation. In the past, this technology was not useful for plant-based samples due to their high levels of photosynthetic pigments as the fluorescent backgrounds can overwhelm Raman signals in all visible wavelengths. This issue is now resolved by BaySpec’s line of 1064 nm excitation dispersive Raman systems that offer maximum reduction in fluorescence interference.

  3. How To Make A Tissue Raman Measurement At 1064 nm
    6/18/2019

    The combination of improved Raman technology and the technique’s molecular sensitivity have led to a rise in Raman usage for a variety of applications including pharmaceutical, biomedical, industrial, and forensics. There remains, however, a struggle to extract useful Raman spectra from fluorescent and luminescent samples. For those users who require longer wavelengths such as 1064 nm, the only available option has been FT-Raman. Now, BaySpec’s new dispersive 1064 nm Raman spectrometers offer users a turn-key solution that combines the speed, sensitivity, and rugged design of traditional dispersive Raman instruments with the fluorescence avoidance of traditional FT-Raman instruments.

  4. Frictionless Precision Motion Control Based On Air Bearing Stages - Key Element In Coordinate Measuring And Surface Metrology Applications
    8/23/2017

    The performance of precision metrology equipment depends on highly accurate, repeatable, and controllable motion systems and position sensors. Air bearings have played a critical role in the development and construction of CMMs and other metrology tools. 

  5. Minimizing Trade-Offs Between Spectral Smoothing And Resolution
    3/28/2017

    Boxcar smoothing is a convenient way to smooth out noise in a spectrum, enabling peaks of interest to be more easily viewed, defined and characterized for properties like peak intensity, center wavelength, and FWHM (full width half maximum). It is a convenient complement to spectral averaging, particularly to minimize acquisition times, but must be used judiciously to avoid impacting the spectral resolution of the data acquired.

  6. Noise In Spectrometers: Part 2
    3/28/2017

    Noise is an undesirable signal that is completely lacking in information or structure, and potentially takes away from the desired signal’s quality and accuracy. Part one of this two-part series discussed the sources of noise from a spectrometer and its experimental methods. This second part of the series takes the information gleaned in part one and uses it to measure low concentrations of sports drinks in a pool, develop a calibration curve,  and determine the limit of detection for the spectrometer.

  7. Noise In Spectrometers: Part 1
    3/24/2017

    This application note is the first part in a series discussing the noise within spectroscopy systems used for ordinary applications, such as making sure the pool is clean after a large family gathering.

  8. CCD Cameras And Imaging Spectrographs Facilitate Acquisition Of Femtosecond Stimulated Raman Spectroscopy Data
    11/9/2016

    Characterizing surface-enhanced Raman spectroscopy (SERS) biosensors, or fluorescent dye molecules for in vivo bioanalyte detection, can be difficult due to the overwhelming isoenergetic fluorescence signal that makes it challenging to measure resonance Raman cross-sections for molecules. 

  9. Medical Research With FLIR Thermal Imaging Cameras
    8/23/2016

    Tissue autofluorescence spectroscopy is utilized in a variety of biomedical research for differentiating between diseased and normal tissues. This app note discusses how researchers used FLIR cameras and ResearchIR software to work to gain a greater understanding of this surgical tool.

  10. NIR Spectroscopy Unbound
    3/23/2016

    Near-infrared (NIR) spectroscopy covers the wavelength space between ultraviolet-visible and infrared absorbance. With enormous potential for a variety of applications, NIR spectroscopy is much more accessible due to the availability of compact, high-value NIR spectrometers. This application note provides a brief introduction to NIR spectroscopy, and introduces the breakthrough Flame-NIR spectrometer from Ocean Optics for handheld and portable applications requiring NIR and chemometric analysis.