This inventor holds 1 USPTO granted patent. Top assignee: Laser Analytics, Inc.. Active years: 1983.
Company Filing History:
Years Active: 1983
Title: Dudley M Chapman: Innovator in Laser Technology
Introduction
Dudley M Chapman is a notable inventor based in Medford, MA (US). He has made significant contributions to the field of laser technology, particularly with his innovative patent for a scanning laser spectrometer. His work has implications for various scientific applications, enhancing the capabilities of spectroscopic analysis.
Latest Patents
Dudley M Chapman holds a patent for a scanning laser spectrometer. This device incorporates a scanning diode laser powered with a controllable injection current. The injection current control can be set at predetermined discrete levels, which may be varied according to signals derived from a servo loop. The laser output is directed via a beam splitter to both sample and reference cells. The material in the reference cell is selected to provide absorption features at each of the desired frequencies. The cyclically varying current is designed to have an amplitude sufficient to cause a frequency amplitude at least as great as the maximum breadth of each spectral feature of interest. The preselected bias currents are chosen to provide lasing action of the diode at or near each of the selected frequencies. A phase-locked amplifier tuned to the frequency of the cyclically varying current senses the position of the scanned laser output relative to the associated absorption feature and provides an error signal to adjust the bias current, centering the cyclically scanned laser frequency on the selected absorption feature.
Career Highlights
Dudley M Chapman is associated with Laser Analytics, Inc., where he continues to contribute to advancements in laser technology. His work has been instrumental in developing tools that enhance the precision and effectiveness of spectroscopic measurements.
Collaborations
Throughout his career, Dudley has collaborated with notable colleagues, including David L Wall and Arlan W Mantz. These partnerships have fostered innovation and have led to advancements in the field of laser analytics.
Conclusion
Dudley M Chapman is a distinguished inventor whose work in laser technology has paved the way for advancements in spectroscopic analysis. His contributions continue to impact the scientific community positively.