Single-shot self-interference incoherent digital holography using off-axis configuration.
نویسندگان
چکیده
We propose a single-shot incoherent holographic imaging technique that adopts self-interference incoherent digital holography (SIDH) with slight tilt of the plane mirror in the optical configuration. The limited temporal coherence length of the illumination leads the guide-star hologram of the proposed system to have a Gaussian envelope of elliptical ring shape. The observation shows that the reconstruction by cross correlation with the guide-star hologram achieves better quality than the usual propagation methods. Experimentally, we verify that the hologram and 3D reconstruction can be implemented incoherently with the proposed single-shot off-axis SIDH.
منابع مشابه
Overview of techniques applicable to self-interference incoherent digital holography.
Self-interference incoherent digital holography (SIDH) retrieves the complex hologram from the object illuminated by the incoherent light. Supported by the adaptive optic feature, SIDH is readily applicable to the ocular imaging to investigate the human retinal cells. Considering the practical issues, issues related to resolution, phase-shifting, and contrast should be addressed to implement th...
متن کاملStudy of self-interference incoherent digital holography for the application of retinal imaging
Adaptive optics (AO) using digital holography (DH) is more effective in terms of complexity and cost than other AO techniques. However, use of coherent illumination is problematic in applying DHAO for retinal imaging because of speckle noise. Self-interference incoherent digital holography (SIDH) is a technique to record holographic information from the object illuminated by incoherent light. B...
متن کاملDigital Holography of Natural Scenes
A novel technique dubbed self-interference incoherent digital holography (SIDH) is being developed for imaging of natural scenes such as astronomical objects or daylightilluminated outdoor scenes. OCIS codes: (090.1995) Digital holography; (100.6880) Three-dimensional image acquisition; (110.1080) Active or
متن کاملSingle-shot color digital holography based on the fractional Talbot effect.
We present a method for recording on-axis color digital holograms in a single shot. Our system performs parallel phase-shifting interferometry by using the fractional Talbot effect for every chromatic channel simultaneously. A two-dimensional binary amplitude grating is used to generate Talbot periodic phase distributions in the reference beam. The interference patterns corresponding to the thr...
متن کاملA Nonlinear Technique for Automatic Twin-Image and Zero-Order Term Suppression in Digital Holographic Microscopy
Digital holography enables the encoding of complex wavefronts with an intensity measurement, making it possible to recover the quantitative phase for phase-contrast imaging [1] or profilometry [2]. Encoding the wavefront in this fashion leads, however, to the generation of artifacts such as the socalled zero-order, which is the sum of the intensities of the object and reference waves, and the s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Optics letters
دوره 38 23 شماره
صفحات -
تاریخ انتشار 2013