Division of amplitude RGB full-Stokes camera using micro-polarizer arrays

Tu, Xingzhou; Spires, Oliver; Tian, Xiaobo; Brock, Neal; Liang, Rongguang; Pau, Stanley

doi:10.1364/oe.25.033160

Cited by 44 publications

(29 citation statements)

References 20 publications

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“…where S 0 is the absolute intensity, S 1 describes the amount of light polarized along the horizontal or the vertical axes, S 2 describes the amount of light polarized along 45° or 135°, and S 3 describes the amount of right or left circularly polarized light. The full Stokes vector parameters are acquired using the algorithms described in reference [27] Appendix C. For a sample with only birefringence information, the polarization property can be described by Jones calculus. The Jones vectors of the test arm is…”

Section: Operating Principlementioning

confidence: 99%

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Multi-wavelength quantitative polarization and phase microscope

Tian¹,

Tu²,

Croce³

et al. 2019

Biomed. Opt. Express

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We introduce a snapshot multi-wavelength quantitative polarization and phase microscope (MQPPM) for measuring spectral dependent quantitative polarization and phase information. The system uniquely integrates a polarized light microscope and a snap-shot quantitative phase microscope in a single system, utilizing a novel full-Stokes camera operating in the red, green, and blue (RGB) spectrum. The linear retardance and fast axis orientation of a birefringent sample can be measured simultaneously in the visible spectra. Both theoretical analysis and experiments have been performed to demonstrate the capability of the proposed microscope. Data from liquid crystal and different biological samples are presented. We believe that MQPPM will be a useful tool in measuring quantitative polarization and phase information of live cells.

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Section: Operating Principlementioning

confidence: 99%

“…We propose a snapshot multi-wavelength quantitative polarization and phase microscope (MQPPM) using a customized CMOS camera with linear micro-polarizer and Bayer filters [27]. It can obtain single-shot measurement of quantitative birefringence and phase information in RGB spectra.…”

Section: Introductionmentioning

confidence: 99%

Multi-wavelength quantitative polarization and phase microscope

Tian¹,

Tu²,

Croce³

et al. 2019

Biomed. Opt. Express

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“…A metasurface is a two-dimensional nanostructure array, which enables control of amplitude, phase, and polarization of the incident light [7]. It has been successfully used in the realizations of polarimeters [8][9][10][11][12], spectral filters and spectrometers [13][14][15][16][17][18], and even spectro-polarimeters [19][20][21][22]. However, there are still several obstacles to overcome and challenges to be addressed.…”

Section: Introductionmentioning

confidence: 99%

“…First, the majority of multifunctional nanostructure-based devices consist of a few transversely-variant layers on top of each other. This poses quite a challenge in terms of alignment, as even small misalignment causes errors in the detected information [21]. Furthermore, for the maximum gain in the spectral information, it is important to obtain a high spectral resolution, but up to now, the spectral resolution of spectro-polarimetric systems has been limited to the bands of RGB filters [21], or required a connection to an external spectrometer [19].…”

Section: Introductionmentioning

confidence: 99%

“…This poses quite a challenge in terms of alignment, as even small misalignment causes errors in the detected information [21]. Furthermore, for the maximum gain in the spectral information, it is important to obtain a high spectral resolution, but up to now, the spectral resolution of spectro-polarimetric systems has been limited to the bands of RGB filters [21], or required a connection to an external spectrometer [19]. Last but not least, imaging systems, ideally, should be integrated on a compact sensor, thus aspects as compatibility, thickness and height uniformity of the pixels are of high importance and have to be addressed.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructure-modulated planar high spectral resolution spectro-polarimeter

et al. 2020

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We present a planar spectro-polarimeter based on Fabry-Pérot cavities with embedded polarization-sensitive high-index nanostructures. A 7 µm-thick spectro-polarimetric system for 3 spectral bands and 2 linear polarization states is experimentally demonstrated. Furthermore, an optimal design is theoretically proposed, estimating that a system with a bandwidth of 127 nm and a spectral resolution of 1 nm is able to reconstruct the first three Stokes parameters with a signal-to-noise ratio of -13.14 dB with respect to the the shot noise limited SNR. The pixelated spectro-polarimetric system can be directly integrated on a sensor, thus enabling applicability in a variety of miniaturized optical devices, including but not limited to satellites for Earth observation.

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Determination of Stokes Vector from a Single Image Acquisition

Kamegaki,

Ryu,

et al. 2024

Annalen der Physik

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Four Stokes parameters (1852) define the polarization state of light. Measured changes of the Stokes vector of light traversing an inhomogeneous sample are linked to the local anisotropies of absorption and refraction and are harnessed over an increasing range of applications in photonics, material, and space/earth observation. Several independent polarization sensitive measurements are usually required for determination of the all four Stokes parameters, which makes such characterization procedure time‐consuming or requires complex setups. Here, a single‐snapshot approach to Stokes polarimetry in transmission is introduced by use of a four‐polarization camera with the on‐chip integrated polarizers. A quarter‐waveplate is added in front of the sample and is illuminated by a linearly polarized light. This approach is demonstrated by measuring birefringence of spider silk of only m‐diameter using microscopy, however, due to its generic nature, it is transferable to other spectral ranges and imaging applications, e.g., imaging from a fast moving satellite or drone or monitoring fast changing events such as phase transitions.

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Division of amplitude RGB full-Stokes camera using micro-polarizer arrays

Cited by 44 publications

References 20 publications

Multi-wavelength quantitative polarization and phase microscope

Multi-wavelength quantitative polarization and phase microscope

Nanostructure-modulated planar high spectral resolution spectro-polarimeter

Determination of Stokes Vector from a Single Image Acquisition

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