Company Filing History:
3 out of 832,891 Years Active: 1999-2007
Title: Innovations of James J Stone in Infrared Waveguide Technology
Introduction
James J Stone is a notable inventor based in Charlottesville, VA (US), recognized for his contributions to the field of infrared waveguide technology. With a total of three patents to his name, he has made significant advancements that enhance the efficiency and effectiveness of infrared sensing applications.
Latest Patents
One of his latest patents focuses on support planar and tapered quasi-planar germanium waveguides for infrared evanescent-wave sensing. These miniature planar IR waveguides, with a thickness of 30-50 micrometers, consist of 12-mm long and 2-mm wide strips of germanium supported on zinc sulfide substrates. The design includes tapered quasi-tapered waveguides that transition from a thickness of 1 mm at the ends to a minimum of 1-100 micrometers at the center. This innovative approach increases surface sensitivity as a function of incidence or bevel angle. The tapered waveguide significantly improves the efficiency of optical coupling into the waveguide from an FTIR spectrometer and out to a small-area IR detector. By eliminating the need for an IR microscope to couple light through the waveguide, this design allows for direct coupling with a detector using an immersion lens. Such thin supported waveguides can be made quite long, for example, 50 mm, and can be mounted horizontally. Even with a cross-section of 20 micrometers by 1 mm, the design achieves sufficient throughput to provide signal-to-noise ratios exceeding 1000 over the 1000-5000 cm range, with just 2 minutes of scanning at 8 cm resolution.
Career Highlights
Throughout his career, James J Stone has demonstrated a commitment to advancing technology in the field of infrared sensing. His innovative designs have paved the way for more efficient and effective sensing solutions, making significant contributions to the scientific community.
Collaborations
James has collaborated with notable colleagues, including Mark S Braiman and Susan E Plunkett, to further enhance the development of infrared waveguide technologies.
Conclusion
James J Stone's work in the field of infrared waveguide technology exemplifies innovation and dedication to advancing scientific understanding. His patents reflect a deep understanding of optical engineering and a commitment to improving sensing technologies.