Three-dimensional images generated by quadrature interferometry

Abstract

Quadrature detection techniques have been applied to images obtained from a Mach-Zehnder interferometer with differently polarized beams to yield the real and the imaginary parts of the diffracted fields simultaneously. This approach eliminates the need for phase retrieval by providing complete information on the complex amplitude of the diffracted signal. We present results in which we demonstrate our ability to reconstruct two- and three-dimensional microscopic objects from their complex diffraction patterns.

Determination of the Number of Cells in Preimplantation Embryos by Using Noninvasive Optical Quadrature Microscopy in Conjunction with Differential Interference Contrast Microscopy

“…Optical quadrature microscopy (OQM), developed in our laboratory, measures both the amplitude and phase of light that passes through an object (Hogenboom et al, 1998;Glina et al, 1999;Stott et al, 2001;Townsend et al, 2003). Therefore, OQM images include contributions from refractive index and absorption for all the cells in the light path.…”

Super-resolution Holographic Imaging Techniques Using a Synthetic Aperture

“…수식 ( 계(phase shifting interferometry), [12,13] (2) 기준 파면이 산 란 광학장의 광학축에 대해 각도 차이를 가지고 간섭이 되게 하는 공간 변조(spatial modulation, 그림 1a-b), [14][15][16][17] (3) 빛 의 편광을 이용하는 편광 변조(polarization modulation) [18] 등의 …”

Harmonically-related diffraction gratings-based interferometer for quadrature phase measurements

“…Other methods for quantitative phase imaging (QPI) include digital holography [12,13], Hilbert phase microscopy (HPM) [14,15], and polarization based techniques [16,17]. Interference microscopy techniques based on PSI generally require recording of four interferograms with precise π/2 phase shifts of the reference field, adding complexity to the system while others can be computation extensive.…”