Ao Li, Chan Wang, Xuhuinan Chen, Chenxu Bian, Xinyan Zhang, Weiqi Cai, Hongsheng Chen, Xiao Lin
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Superscattering offers an enticing route to significantly enhance the scattering cross section of subwavelength scatterers, far exceeding the single-channel scattering limit. It is of paramount importance to many applications, such as optical sensing, antennas, and imaging. However, the superscattering phenomenon is generally accompanied with nonzero forward-scattered light. Here, we find the possibility of creating the exotic phenomenon of superscattering with zero forward-scattered light by exploiting the optical gain. The underlying mechanism is that the optical gain can facilitate the realization of not only the single-channel superscattering but also the second Kerker effect, which is intrinsically related to the zero forward scattering phenomenon. Because of the importance of the second Kerker effect in regulating the directionality of superscattering, this revealed phenomenon is termed as Kerker-superscattering.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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