Our tests of the Daylight Solutions room temperature CW external cavity QC laser for ammonia measurements at 10.5 um gave excellent results.Â The laser truly is a turn-key device with a well designed programmable interface.Â The external PZT wavelength tuning performed exactly as specified.Â This is a wonderful spectroscopic tool that we look forward to working with in the future.
The reflected light from a 9.6 um Tunable Pulsed laser works very well with our quartz tuning fork sensor. The photoacoustic signal produced enables remote detection of explosives residues as well as chemical and biological agents. We have great repeatability when demonstrating standoff detection of RDX, TNT, and TBP at 20 meters with samples of 100 ng/cm2. The broad tuning is a key advantage towards achieving highly reliable identification.
During our first use of a new 5.2 um CW laser from Daylight Solutions, we made successful direct absorption measurements of nitric oxide scanning more than 50 cm-1 without any mode hops in a time of only 3 seconds. The laser provides relatively high power (10s of mW), scans well, and covers our entire target range.
We acquired NH3Â and SF6 spectra in record time with the CW mode-hop-free laser.Â This would not have been possible without the expert design, assembly and testing of Daylight Solutions. The laserâ€™s high power, excellent wavelength control, and tuning range make this an ideal tool for high resolution spectroscopy.
[Spero] is a huge advance and in my opinion is what truly can take this technology to the next level. Due to the much brighter lasers, this system can allow for real-time imaging of human tissues and is the first fully integrated system that could be used by Pathologists. There is considerable interest in this system in my pathology department at UIC.
Our lab is also very active in development of nanomaterial based platforms for gene therapy as well as delivery of vaccines, adjuvants, and drugs, and we are equally excited about the potential of the Spero to improve our research in these fields by providing a means to identify (and in the future, potentially quantify) presence of drugs without either the label based imaging methods or destructive bulk analytical approaches currently required. Of particular relevance to Spero imaging are many of the newer polymer based and nanomaterial delivery formulations under development because the IR signatures of these materials are very different than those of tissue and should be easily detectable.