# Colored Conical Emission by Means of Second Harmonic Generation in a Quadratically Nonlinear Medium

- Canonical URL: https://hp-zeng.com/research/colored-conical-emission/
- Language: English
- English title: Colored Conical Emission by Means of Second Harmonic Generation in a Quadratically Nonlinear Medium
- Chinese title: 二次非线性介质中二次谐波产生的彩色锥形辐射

## Publication

- Nonlinear optics
- Year: 2004
- Journal: Physical Review Letters
- Authors: Heping Zeng, Jian Wu, Han Xu, Kun Wu, E. Wu
- Citation: Physical Review Letters 92, 143903 (2004)
- DOI: [10.1103/PhysRevLett.92.143903](https://doi.org/10.1103/PhysRevLett.92.143903)

## Summary

Observes colored conical emission from spatiotemporal instability and parametric wave mixing during second-harmonic generation.

## Why this work matters

Reveals a mechanism for reshaping angular spectra and enabling ultrabroadband frequency upconversion.

## Author

Heping Zeng

- Email: [hpzeng@phy.ecnu.edu.cn](mailto:hpzeng@phy.ecnu.edu.cn)
- Telephone: +86 21 5483 6115
- Office: A519, Optics Building, Minhang Campus, East China Normal University, Shanghai 200241, China
- Institution: [East China Normal University](https://www.ecnu.edu.cn/)