Abstract

Here we theoretically demonstrate a dynamic third-harmonic generation (THG) device by incorporating chalcogenide phase change material (Ge2Sb2Te5) into ultra-small cavities of gap-plasmon resonators. Through coupling to plasmonic resonances, the THG efficiency of Ge2Sb2Te5 is increased up to five orders of magnitude due to the greatly enhanced electromagnetic fields within the ultra-small cavities. More interestingly, the THG signals of the proposed device can be dynamically switched on and off by tuning the phase states of Ge2Sb2Te5 between amorphous and crystalline. Our proposed dynamic THG nanostructures are beneficial to developing dynamic nonlinear nanophotonic devices.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Nonvolatile tunable silicon-carbide-based midinfrared thermal emitter enabled by phase-changing materials

Lu Cai, Kaikai Du, Yurui Qu, Hao Luo, Meiyan Pan, Min Qiu, and Qiang Li
Opt. Lett. 43(6) 1295-1298 (2018)

All-optical non-volatile tuning of an AMZI-coupled ring resonator with GST phase-change material

Hanyu Zhang, Linjie Zhou, Jian Xu, Liangjun Lu, Jianping Chen, and B. M. A. Rahman
Opt. Lett. 43(22) 5539-5542 (2018)

Fano-resonant silicon photonic crystal slab for efficient third-harmonic generation

Guoxun Ban, Cheng Gong, Chaobiao Zhou, Shiyu Li, Regis Barille, Xiaojun Liu, and Yi Wang
Opt. Lett. 44(1) 126-129 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription