PublicationsPhoton Systems: Innovative deep ultraviolet sources and systems
Since beginning full time operation in June 1999, Photon Systems has focused on the development of two new unique classes of deep ultraviolet (DUV) laser sources as well as analytical and biotechnology sciences instruments enabled by these innovative new laser technologies. The new DUV laser technologies include both hollow cathode and semiconductor devices. The new instrument technologies enabled by these lasers include targeted ultraviolet chemical sensors (TUCS) which include an integrated combination of UV resonance fluorescence and/or resonance Raman sensors, photoluminescence (PL) spectrometers, and UV resonance 
Raman spectrometers (UVRRS). In addition, Photon Systems has developed methods for employing its DUV laser technologies for use in other instrumental methodologies such as laser induced resonance fluorescence detectors for capillary electrophoresis and liquid chromatography instruments, flow cytometers, and other instrumental methodologies.
Deep UV enables new sensors
Photon Systems has focused its efforts on deep UV sources and systems because of the major technical advantages demonstrated for chemical sensors and instruments operating in this wavelength range and because of the paucity of sources and sensor technology in this area. High levels of chemical sensitivity and specificity can be achieved using UV probe wavelengths in non-contact, non-invasive, non-destructive sensors that require no sample handling or preparation. applications for TUCS instruments includes in situ, real time measurement and characterization such as:
• Quality measurement of synthetic chemical vapor deposited diamond and diamond like carbon films in hard disc drive, super abrasives manufacturing, and other synthetic diamond applications;• Quality measurement of epitaxial films employed in microelectronics manufacturing;
• Quality measurement of the surface condition, chemistry and quality of other elements of microelectronic devices;
• Water quality in waste treatment plants where the content of nitrates, nitrites, carbonates, aluminates, and other water quality contaminants need to be measured on a regular basis;
• Well water or ocean water quality: sea farming, well water testing, domestic water quality;
• Microbial identification in water, air and or surfaces: operating room surface measurement, microelectronic manufacturing reagents testing, etc.
• Homeland security detectors for bioterrorism agents
• General measurement of targeted chemical compositions in quality control measurements in manufacturing such as adhesives, plastics, organic chemicals, etc.
Deep UV photoluminescence and Raman spectrometers being developed by Photon Systems will occupy a unique market position because the use of the company's laser technology enables dramatically smaller size, power consumption and manufacturing cost than competitive instruments in this wavelength range. Deep UV wavelengths are essential for many applications, as will be described later in this document. Communication with these instruments is via ethernet or serial connection with control computers where each laser can act as a node in a local area network sensing quality issues in a manufacturing facility.