title: Depth-resolved dual-beamlet vibrometry based on Fourier domain low coherence interferometry.
abstract: We present an optical vibrometer based on delay-encoded, dual-beamlet phase-sensitive Fourier domain interferometric system to provide depth-resolved subnanometer scale vibration information from scattering biological specimens. System characterization, calibration, and preliminary vibrometry with biological specimens were performed. The proposed system has the potential to provide both amplitude and direction of vibration of tissue microstructures on a single two-dimensional plane.
authors: Department of Biomedical Engineering, Oregon Health and Science University, 3303 SW Bond Avenue, Portland, Oregon 97239, USA. hrebeshms@gmail.com
authors: Hrebesh M
authors: HM
authors: Subhash
authors: Niloy
authors: N
authors: Choudhury
authors: Fangyi
authors: F
authors: Chen
authors: Ruikang K
authors: RK
authors: Wang
authors: Steven L
authors: SL
authors: Jacques
authors: Alfred L
authors: AL
authors: Nuttall
mesh_terms: D000818:Animals; D003051:Cochlea / Q000033:anatomy & histology; D005583:Fourier Analysis; D006168:Guinea Pigs; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D007368:Interferometry / Q000295:instrumentation* / Q000379:methods*; D041623:Tomography, Optical Coherence / Q000295:instrumentation* / Q000379:methods*; D014732:Vibration