Preface to the second edition of Photometry, radiometry, and measurements of optical losses

The second edition of the book “Applied Photometry, Radiometry, and Measurements of Optical Losses” includes a vast majority of material published in its first edition in 2012, while also expanding and extending some of its sections. Due to continuous enhancement of measurement techniques and methodologies, this edition adds Chap.12 on the Spectroscopic Interferometry, including FTIR, Brillouin Scattering, Frequency Comb, Terahertz Spectroscopies, plus upgrades paragraph 6.4 with techniques for Enhancement of Sensitivity and Mitigation of Fluorescence in Raman Scattering. These additions could be seen as broadening the scope of the book somewhat beyond commonly assigned subject areas of photometric and radiometric studies and expanding measurement techniques into far-infrared and even terahertz spectral regions, overlapping with spectral interferometry, biomedical and biotech sensing, and more; although such developments, while enhancing techniques and methods of laser spectroscopy, exemplify essential broadening of spectroradiometric methodologies via lasers or newer sources or detectors of optical radiation.I wish to express my sincere appreciation to all readers of the first edition of this book, and, especially, to Jonathan Barletta for pointing out to an erroneous typo inEqs. (2.1)–(2.3). I sincerely appreciate the curtesy of David Wright for thoroughly reviewing sections of the newly written Chap.12 of the 2nd edition and am grateful to Mikhail Smirnov for helpful suggestions.This edition is dedicated to my dearest and ever caring mother, to my dear brother and to Alla and Roberta, to my lovely daughter and to Pierre, and to my two loveliest granddaughters Anastasia and Laetitia, and also to the memory of Avrush Shwartsman. Cranbury, CT, USA and Southampton, England Michael Bukshtab