TY  - RPRT
TI  - Nonlinear negative refraction by difference frequency generation
AU  - Cao, Jianjun
AU  - Shen, Dongyi
AU  - Feng, Yaming
AU  - Wan, Wenjie
PY  - 2016
DO  - 10.1063/1.4948974
UR  - https://www.osti.gov/biblio/22591690
ID  - 22591690
ER  -