High-speed imaging chopper polarimetry

Matchko, Roy M.; Gerhart, Grant R.

doi:10.1117/1.2829767

Cited by 27 publications

(12 citation statements)

References 9 publications

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“…Polarization‐sensitive photodetectors have attracted extensive attention owing to their remarkable polarization dependent optoelectronic properties . Among them, polarization‐sensitive ultraviolet (UV) photodetection capable of detecting polarized UV light is a significant branch of optoelectronics and has been adapted to various fields, ranging from communication, near field imaging, remote sensing, as well as to military surveillance .…”

Section: Figurementioning

confidence: 99%

Ferroelectricity‐Driven Self‐Powered Ultraviolet Photodetection with Strong Polarization Sensitivity in a Two‐Dimensional Halide Hybrid Perovskite

Dey

et al. 2020

Angewandte Chemie

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Polarization-sensitive ultraviolet (UV) photodetection is highly indispensable in military and civilian applications and has been demonstrated with various wide-band photodetectors. However, it still remains elusive to achieve the selfpowered devices, which can be operated in the absence of external bias. Herein, for the first time, ferroelectricity-driven self-powered photodetection towards polarized UV light was successfully demonstrated in a 2D wide-band gap hybrid ferroelectric (BPA) 2 PbBr 4 (BPA = 3-bromopropylammonium) (1). We found that the prominent spontaneous polarization in 1 results in a bulk photovoltaic effect (BPVE) of 0.85 V, that independently drives photoexcited carriers separation and transport and thus supports self-powered ability. This self-powered detector shows strong polarization sensitivity to linearly polarized UV illumination with a polarization ratio up to 6.8, which is superior to that of previously reported UVpolarized photodetectors (ZnO, GaN, and GeS 2). Polarization-sensitive photodetectors have attracted extensive attention owing to their remarkable polarization dependent optoelectronic properties. [1-3] Among them, polarizationsensitive ultraviolet (UV) photodetection capable of detecting polarized UV light is a significant branch of optoelectronics and has been adapted to various fields, ranging from communication, near field imaging, remote sensing, as well as to military surveillance. [4-9] During the past decades, most attention on polarization-sensitive UV photodetection was devoted to conventional wide band gap semiconductor medium with nanowire geometry, such as GaN [4] and ZnO. [5] Recently, anisotropic 2D semiconductor GeS 2 also has been demonstrated to be potential building element for UVpolarized detection due to the intrinsic anisotropic crystal structure. [10] However, an external power source was usually required as driving force in all above mentioned devices to separate the photogenerated carriers, which not only consumed energy but also largely increased the system size and integrated cost. Self-powered photodetectors represent a new type of candidate without external energy supply, which can

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Section: Figurementioning

confidence: 99%

Ferroelectricity‐Driven Self‐Powered Ultraviolet Photodetection with Strong Polarization Sensitivity in a Two‐Dimensional Halide Hybrid Perovskite

Dey

et al. 2020

Angewandte Chemie

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“…Polarized light plays an important role in modern optoelectronic devices such as liquid crystal display (LCD) backlight [1,2], 3D display systems [3] and polarization photodetection [4,5]. The polarization ratio is a parameter that can measure the degree of polarization, which can be defined as [6]…”

Section: The Application Of Anisotropic Materials In Display Technologymentioning

confidence: 99%

Linearly polarized photoluminescence from anisotropic perovskite nanostructures: emerging materials for display technology

Meng

Bai

et al. 2019

Journal of Information Display

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Polarization is an important feature of light, which plays an important role in display technology. Anisotropic semiconductor nanostructures (nanorods, nanoplatelets) show polarized emissions. In this progress report, we summarized the recent research progress of anisotropic perovskite nanomaterials for potential liquid crystal display backlight, with focus on the fabrication and assembly. Finally, the paper points out the bright future of using perovskite nanostructures for display technology.

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“…Because the reflected light from artificial objects contains abundant polarization signals, capturing the polarization information of the incident light is a useful tool to improve object recognition, particularly in complicated environments. In visible and infrared (IR) wavebands, polarizers have been successfully developed to construct polarization imaging systems . In comparison, the development of polarization detection in the ultraviolet (UV) region has been delayed due to the difficulty in fabricating effective polarization‐selective optical elements for that region.…”

Section: Introductionmentioning

confidence: 99%

Polarization‐Sensitive Ultraviolet Detection from Oriented‐CdSe@CdS‐Dot‐in‐Rods‐Integrated Silicon Photodetector

Zhang²,

Wang

et al. 2019

Advanced Optical Materials

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semiconductor nanomaterials (e.g., nanowires, nanorods, and nanoplates) are emerging as new generation materials for polarization detection. [3][4][5][6][7][8][9][10] Although UVresponsive photodetectors can be achieved using 1D wide bandgap materials (e.g., GaN [4] and ZnO [10] ) or 2D materials (e.g., α-MoO 3 , [8] GeS 2 , [11] and NiPS 3 [12] ), the scale up and alignment of these materials are still obstacles to achieving polarization imaging and the corresponding detection systems. Therefore, it is of great interest to look for alternative strategies for polarization-sensitive UV detection.The incorporation of luminescent downshifting materials, such as fluorescent dyes, rare-earth doped compounds, and colloidal quantum dots (QDs), with charge-coupled devices (CCDs) or complementary metal oxide semiconductors (CMOS) provides a low-cost route to fabricating UV photodetectors. [13][14][15][16] Among them, colloidal QDs show advantageous properties of strong UV absorption, tunable photoluminescence (PL) emission, high quantum yields (QYs), and straightforward solution processability, [17][18][19] which have been successfully applied to enhance the UV response of Si photodetectors [15,16] and solar cells. [20] In addition to the excellent PL features, the unique structure of 1D dot-in-rods (DIRs) enables large Stokes shift and linearly polarized excitation and emission. [21][22][23] By aligning and ordering the DIRs, [24][25][26][27][28] macroscopic-scale polarized emission has been achieved, providing a potential for use in LCD display backlights. [29][30][31][32][33] In this work, we first demonstrated the incorporation of aligned CdSe@CdS DIRs as downshifting materials with an electron multiplying chargecoupled device (EMCCD) for polarization-sensitive UV detection.

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High-speed imaging chopper polarimetry

Cited by 27 publications

References 9 publications

Ferroelectricity‐Driven Self‐Powered Ultraviolet Photodetection with Strong Polarization Sensitivity in a Two‐Dimensional Halide Hybrid Perovskite

Ferroelectricity‐Driven Self‐Powered Ultraviolet Photodetection with Strong Polarization Sensitivity in a Two‐Dimensional Halide Hybrid Perovskite

Linearly polarized photoluminescence from anisotropic perovskite nanostructures: emerging materials for display technology

Polarization‐Sensitive Ultraviolet Detection from Oriented‐CdSe@CdS‐Dot‐in‐Rods‐Integrated Silicon Photodetector

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