Yefu Zhang

110 Xiangya Road
Changsha, 410078, China

Last Updated: 09/26/2026

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Found 13 publications

Continuous large-angle beam steering using in-plane shifting of two Pancharatnam-Berry phase liquid crystal lenses.

Continuous large-angle beam steering using in-plane shifting of two Pancharatnam-Berry phase liquid crystal lenses.

Journal: Optics express
Published: June 11, 2026

Fast evaluation of waveguide AR displays with an open-source GPU-based ray-tracing method.

Fast evaluation of waveguide AR displays with an open-source GPU-based ray-tracing method.

Journal: Optics express
Published: February 20, 2026

Broadband and wide-angle surface relief gratings for single-waveguide full-color augmented reality displays.

Broadband and wide-angle surface relief gratings for single-waveguide full-color augmented reality displays.

Journal: Optics express
Published: November 11, 2025

Optimizing the uniformity and efficiency of AR waveguide displays with an open-source beam tracing method.

Optimizing the uniformity and efficiency of AR waveguide displays with an open-source beam tracing method.

Journal: Optics express
Published: September 23, 2025

Enhancing the virtual reality optical efficiency via emission cone optimization of the display panel.

Enhancing the virtual reality optical efficiency via emission cone optimization of the display panel.

Journal: Optics express
Published: August 13, 2025

Broadband and wide-view cholesteric liquid crystal polarization selective reflectors.

Broadband and wide-view cholesteric liquid crystal polarization selective reflectors.

Journal: Optics express
Published: July 30, 2025

Flash and point-and-shoot hybrid lidar by DMD-based solid-state diffractive beam and image steering.

Flash and point-and-shoot hybrid lidar by DMD-based solid-state diffractive beam and image steering.

Journal: Optics express
Published: June 14, 2025

Household Food Insecurity, Dietary Diversity, Stunting, and Anaemia among Left-Behind Children in Poor Rural Areas of China.

Household Food Insecurity, Dietary Diversity, Stunting, and Anaemia among Left-Behind Children in Poor Rural Areas of China.

Journal: International journal of environmental research and public health
Published: November 10, 2019

Study on the Status of Health Service Utilization among 3⁻5 Years Old Left-Behind Children in Poor Rural Areas of Hunan Province, China: A Cross-Sectional Survey.

Study on the Status of Health Service Utilization among 3⁻5 Years Old Left-Behind Children in Poor Rural Areas of Hunan Province, China: A Cross-Sectional Survey.

Journal: International journal of environmental research and public health
Published: November 30, 2018

Dietary Behaviors and Caregiver Perceptions of Overweight and Obesity among Chinese Preschool Children.

Dietary Behaviors and Caregiver Perceptions of Overweight and Obesity among Chinese Preschool Children.

Journal: International journal of environmental research and public health
Published: March 20, 2018

The Relationship between Obesity, Sleep and Physical Activity in Chinese Preschool Children.

The Relationship between Obesity, Sleep and Physical Activity in Chinese Preschool Children.

Journal: International journal of environmental research and public health
Published: January 22, 2018

Effect of a Conditional Cash Transfer Program on Nutritional Knowledge and Food Practices among Caregivers of 3-5-Year-Old Left-Behind Children in the Rural Hunan Province.

Effect of a Conditional Cash Transfer Program on Nutritional Knowledge and Food Practices among Caregivers of 3-5-Year-Old Left-Behind Children in the Rural Hunan Province.

Journal: International journal of environmental research and public health
Published: December 13, 2017
Showing 1-12 of 13

Last Updated: 09/26/2026