David B Johnson

Title: David B Johnson: Innovator in Spectroscopy Technology

Introduction

David B Johnson is a notable inventor based in Needham, MA (US), recognized for his contributions to the field of spectroscopy technology. With a total of three patents to his name, Johnson has made significant advancements that enhance the capabilities of infrared spectrometers.

Latest Patents

One of Johnson's latest patents is focused on interferometer step scanning systems and methods. This innovation involves maintaining the pathlength difference in a step scanning infrared spectrometer interferometer under AC servomechanism control for a specified period, followed by DC servo control. This method allows for data acquisition during and after the DC servo control period, effectively minimizing dither-frequency noise that could interfere with signals of interest. This is particularly beneficial in fast-time-scale applications such as high-speed time-resolved spectroscopy. Additionally, he has developed a technique for achieving preferred optical alignment in a scanning interferometer, which introduces phase shifts into the alignment servo to maximize overall modulation efficiency.

Career Highlights

Throughout his career, David B Johnson has worked with prominent companies in the field, including Bio-Rad Laboratories, Inc. and Agilent Technologies Australia Pty Ltd. His experience in these organizations has contributed to his expertise and innovative capabilities in spectroscopy technology.

Collaborations

Johnson has collaborated with notable colleagues such as Raul Curbelo and Anthony Bond, further enhancing his work and contributions to the field.

Conclusion

David B Johnson's innovative work in spectroscopy technology, particularly through his patents, showcases his significant impact on the industry. His advancements continue to influence the development of high-speed spectroscopic applications.