Light Polarization and Signal Processing in Chiroptical Instrumentation

Autor: Kenneth W. Busch, Marianna A. Busch
Rok vydání: 2018
Předmět:
DOI: 10.1016/b978-0-444-64027-7.00003-3
Popis: Modern chiroptical instrumentation relies heavily on the use of various forms of polarized light and the ability to detect weak signals in the presence of unwanted extraneous signals. As a result, this chapter is divided into two main sections. The first part discusses the properties and production of polarized light and endeavors to provide a basic introduction to the topic. The second part of the chapter focuses on aspects of signal handling and the recovery of weak signals in the presence of noise. In particular, the use of amplitude modulation followed by synchronous demodulation is discussed in detail. The chapter concludes with a discussion of the application of phase-sensitive detection in polarimetry. Finally, two appendices are provided at the end of the chapter that cover some basic optical and electronic concepts to help readers understand the discussion in the main body of the chapter. This chapter should be of interest to those wanting a more in-depth understanding of chiroptical instrumentation or those contemplating assembling their own research instrumentation.
Databáze: OpenAIRE