Abstract
We experimentally demonstrated Bessel-like beams utilizing digital micromirror device (DMD). DMD with images imitating the equivalent axicon can shape the collimated Gaussian beam into Bessel beam. We reconstructed the 3D spatial field of the generated beam through a stack of measured cross-sectional images. The output beams have the profile of Bessel function after intensity modulation, and the beams extend at least 50 mm while the lateral dimension of the spot remains nearly invariant. Furthermore, the self-healing property has also been investigated, and all the experimental results agree well with simulated results numerically calculated through beam propagation method. Our observations demonstrate that the DMD offers a simple and efficient method to generate Bessel beams with distinct nondiffracting and self-reconstruction behaviors. The generated Bessel beams will potentially expand the applications to the optical manipulation and high-resolution fluorescence imaging owing to the unique nondiffracting property.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Yu-Xuan Ren, Ming Li, Kun Huang, Jian-Guang Wu, Hong-Fang Gao, Zi-Qiang Wang, and Yin-Mei Li
Appl. Opt. 49(10) 1838-1844 (2010)
Lei Gong, Xing-Ze Qiu, Yu-Xuan Ren, Hui-Qing Zhu, Wei-Wei Liu, Jin-Hua Zhou, Min-Cheng Zhong, Xiu-Xiang Chu, and Yin-Mei Li
Opt. Express 22(22) 26763-26776 (2014)
Sanjiv Kumar Tiwari, Satya Ram Mishra, Surjya Prakash Ram, and Haridarshan Singh Rawat
Appl. Opt. 51(17) 3718-3725 (2012)