Autocorrelation low coherence interferometry

✍ Scribed by Mark D. Modell; Vladimir Ryabukho; Dmitry Lyakin; Vladislav Lychagov; Edward Vitkin; Irving Itzkan; Lev T. Perelman

• Book ID: 103873563
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 322 KB
• Volume: 281
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2007.12.043

✦ Synopsis

This paper describes the development of a new modality of optical low coherence interferometry (LCI) that is called autocorrelation LCI (ALCI). The ALCI system employs a Michelson interferometer to measure longitudinal autocorrelation properties of the sample optical field and does not require a reference beam. As the result, there is no restrictions applied on the distance between the sample and the ALCI system, moreover, this distance can even change during the measurements. We report experiments using a proof-ofprinciple ALCI system on a multilayer phantom consisting of three surfaces defining two regions of different refractive indices. The experimental data are in excellent agreement with the predictions of the theoretical model.