Enhanced chirpiness detection by extended exposure lens

Ya Tong He; Yun Yun Lai; Wen Xiu Dong; Jin Hu

doi:10.1117/1.OE.60.9.096105

Enhanced chirpiness detection by extended exposure lens

Ya Tong He, Yun Yun Lai, Wen Xiu Dong, Jin Hu^*

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The exposure lens is a useful tool for fast and convenient chirpiness detection. An exposure lens is proposed by adopting square-root space mapping within the framework of transformation optics, thereby exposing a portion of the optical axis within the body of a conventional graded index lens at the lens surface, while compressing the input facet. This compression enables the proposed lens to detect higher chirpiness than conventional lenses. The results of numerical simulations verify the enhanced chirpiness detection. The family of exposure lenses provides a complete kit for investigating a wide chirpiness range, which has potential for optics signal processing.

Original language	English
Article number	096105
Journal	Optical Engineering
Volume	60
Issue number	9
DOIs	https://doi.org/10.1117/1.OE.60.9.096105
Publication status	Published - 1 Sept 2021

Keywords

chirp
fractional Fourier transform
graded index lens
transformation optics

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10.1117/1.OE.60.9.096105

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title = "Enhanced chirpiness detection by extended exposure lens",

abstract = "The exposure lens is a useful tool for fast and convenient chirpiness detection. An exposure lens is proposed by adopting square-root space mapping within the framework of transformation optics, thereby exposing a portion of the optical axis within the body of a conventional graded index lens at the lens surface, while compressing the input facet. This compression enables the proposed lens to detect higher chirpiness than conventional lenses. The results of numerical simulations verify the enhanced chirpiness detection. The family of exposure lenses provides a complete kit for investigating a wide chirpiness range, which has potential for optics signal processing.",

keywords = "chirp, fractional Fourier transform, graded index lens, transformation optics",

author = "He, {Ya Tong} and Lai, {Yun Yun} and Dong, {Wen Xiu} and Jin Hu",

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AU - Hu, Jin

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AB - The exposure lens is a useful tool for fast and convenient chirpiness detection. An exposure lens is proposed by adopting square-root space mapping within the framework of transformation optics, thereby exposing a portion of the optical axis within the body of a conventional graded index lens at the lens surface, while compressing the input facet. This compression enables the proposed lens to detect higher chirpiness than conventional lenses. The results of numerical simulations verify the enhanced chirpiness detection. The family of exposure lenses provides a complete kit for investigating a wide chirpiness range, which has potential for optics signal processing.

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KW - fractional Fourier transform

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KW - transformation optics

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Enhanced chirpiness detection by extended exposure lens

Abstract

Keywords

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