Related Experiment Video
Updated: Jun 19, 2026
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Phase-difference-driven imaging based on a dual-layer stacking liquid-crystal microlenses with different array scale
Mao Ye1,2, Zhe Wang1,2, Zongtao Chen1,2
1National Key Lab of Multispectral Information Intelligent Processing Technology, Huazhong University of Science and Technology, 430074 Wuhan, Hubei, China.
None:
This paper presents a method for effectively constructing some featured light-fields by dual-layered stacking liquid-crystal (LC) microlenses (DSLCM) with different array scales and the structural sizes of microhole-shaped electrodes. Compared with conventional LC microlenses for adjusting the focal length solely via signal-voltage amplitude, the proposed DSLCM achieves a rapid imaging-mode switching and a dynamic light-field modulation by only configuring the static or dynamic phase difference (PD) between two applied signal voltages in a range of 0°-360°. Two typical focuses in millimeter and sub-millimeter dimensions of the DSLCM are presented. A better microbeam focusing efficiency can be originated from a strong spatial electric-field interference through forming an adjusted PD between two signal voltages with the same frequency and different amplitudes. The PD-driven imaging strategy means a dual-mode imaging switch is electrical and a relatively wide dynamic zooming by only efficiently configuring the PD value.
More Related Videos
14:09High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip
Published on: November 16, 2019
08:41Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
Published on: August 16, 2012
