Determining nanometer vibration amplitudes using two spectral components of a semiconductor laser autodyne signal

Autor: A. V. Skripal, A. S. Kamyshanskiĭ, D. A. Usanov
Rok vydání: 2006
Předmět:
Zdroj: Technical Physics Letters. 32:754-757
ISSN: 1090-6533
1063-7850
DOI: 10.1134/s1063785006090069
Popis: We have analyzed the amplitude of spectral components of an autodyne signal formed using laser radiation reflected from an external object performing harmonic oscillations with unknown amplitude. Based on this analysis, a new method is proposed, theoretically substantiated, and experimentally verified that allows the amplitude of nanometer-scale vibrations of the object to be determined by measuring the spectrum of a semiconductor laser operating in the autodyne regime and taking the ratio of the first two harmonics in this spectrum.
Databáze: OpenAIRE