Ultraminiature one-shot Fourier-spectroscopic tomography
Ultraminiature one-shot Fourier-spectroscopic tomography
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超小型单次傅立叶能谱断层扫描
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
I. Ishimaru
中科院分区：
文献类型：
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作者：
Shun Sato;W. Qi;N. Kawashima;Kosuke Nogo;S. Hosono;A. Nishiyama;Kenji Wada;I. Ishimaru
抽象的。我们提出单次傅立叶光谱断层扫描作为超小型光谱成像的一种方法。该技术中使用的设备仅由玻璃板组成，其部分表面以一定的倾斜角度抛光——我们称之为相对倾斜移相器的设备——简单地安装在无限距离校正光学成像系统上。因此，该系统可以被超小型化至几十毫米的尺寸。此外，由于我们的技术使用近共路波前分割相移干涉仪，并且完全不需要机械驱动单元，因此它对机械振动具有很强的鲁棒性。此外，由于所提出的技术使用傅立叶变换光谱，与采用分布式或高光谱声光可调谐滤波器的设备相比，它提供了高效的光利用率和出色的信噪比。干涉图是由所有波长的波干涉形成的图案，反映了干涉强度随相移大小的空间变化。我们首先讨论移相器的设计和测试结果，以验证单次傅立叶光谱断层扫描的原理。然后我们报告使用该技术的一维光谱成像的结果。
Abstract. We propose one-shot Fourier-spectroscopic tomography as a method of ultraminiature spectroscopic imaging. The apparatus used in this technique consists solely of a glass slab with a portion of its surface polished at a certain inclination angle—a device we term a relative-inclination phase shifter—simply mounted on an infinite-distance-corrected optical imaging system. For this reason, the system may be ultraminiaturized to sizes on the order of a few tens of millimeters. Moreover, because our technique uses a near-common-path wavefront-division phase-shift interferometer and has absolutely no need for a mechanical drive unit, it is highly robust against mechanical vibrations. In addition, because the proposed technique uses Fourier-transform spectroscopy, it offers highly efficient light utilization and an outstanding signal-to-noise ratio compared to devices that incorporate distributed or hyperspectral acousto-optical tunable filters. The interferogram, which is a pattern formed by interference of waves at all wavelengths, reflects the spatial variation in the intensity of the interference depending on the magnitude of the phase shift. We first discuss the design of the phase shifter and the results of tests to validate the principles underlying one-shot Fourier-spectroscopic tomography. We then report the results of one-dimensional spectroscopic imaging using this technique.
基于结构光照明和傅里叶变换干涉测量的深度分辨高光谱成像光谱仪。
影响因子：
3.4
作者：
Choi,Heejin;Wadduwage,Dushan;Matsudaira,PaulT;So,PeterTC
通讯作者：
So,PeterTC