IN-LINE RECORDING AND OFF-AXIS VIEWING TECHNIQUE FOR HOLOGRAPHIC PARTICLE VELOCIMETRY

被引：104

作者：

MENG, H ^{[1
]}

HUSSAIN, F ^{[1
]}

机构：

[1] UNIV HOUSTON,DEPT MECH ENGN,HOUSTON,TX 77204

来源：

APPLIED OPTICS | 1995年 / 34卷 / 11期

关键词：

D O I：

10.1364/AO.34.001827

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Prior approaches (e.g., off-axis holography) to overcoming the limitations of in-line holography for particle fields, namely, intrinsic speckle noise and depth resolution, involved an increased complexity of the optical system. The in-line recording and off-axis viewing (IROV) technique employs a single laser beam to record an in-line hologram, which is then viewed off axis during reconstruction. The signal-to-noise ratio and depth resolution of IROV are higher than conventional in-line holography by an order of magnitude and are comparable with off-axis holography. IROV is a much simpler approach than off-axis holography and is highly promising for holographic particle velocimetry. Measurements of the three-dimensional flow velocity field of a vortex ring obtained by an IROV-based holographic particle velocimetry system are presented.

引用

页码：1827 / 1840

页数：14

共 21 条

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