17 February 2015 Integrated polarization-dependent sensor for autonomous navigation
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Based on the navigation strategy of insects utilizing the polarized skylight, an integrated polarization-dependent sensor for autonomous navigation is presented. The navigation sensor has the features of compact structure, high precision, strong robustness, and a simple manufacture technique. The sensor is composed by integrating a complementary-metal-oxide-semiconductor sensor with a multiorientation nanowire grid polarizer. By nanoimprint lithography, the multiorientation nanowire polarizer is fabricated in one step and the alignment error is eliminated. The statistical theory is added to the interval-division algorithm to calculate the polarization angle of the incident light. The laboratory and outdoor tests for the navigation sensor are implemented and the errors of the measured angle are ±0.02  deg and ±1.3  deg, respectively. The results show that the proposed sensor has potential for application in autonomous navigation.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Ze Liu, Ze Liu, Ran Zhang, Ran Zhang, Zhiwen Wang, Zhiwen Wang, Le Guan, Le Guan, Bin Li, Bin Li, Jinkui Chu, Jinkui Chu, } "Integrated polarization-dependent sensor for autonomous navigation," Journal of Micro/Nanolithography, MEMS, and MOEMS 14(1), 015001 (17 February 2015). https://doi.org/10.1117/1.JMM.14.1.015001 . Submission:

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