Abstract

Pyroelectric detectors are desirable for infrared sensing because they operate at room temperature and are easier to fabricate than traditional detectors such as mercury-cadmium-telluride. Unfortunately, they cannot detect specific wavelengths or wavelength bands. Herein, a pyroelectric detector for selective detection in the long-wavelength infrared region will be presented. Pyroelectric aluminum nitride forms a dielectric layer separating a gold plasmonic hole array from a refractory metal, titanium nitride. Infrared radiation incident on the hole array forms a gap plasmon mode whose electric field is confined to the pyroelectric spacer layer. Relaxation of the mode heats the pyroelectric spacer layer, producing a pyroelectric voltage. Using this technique, 18.9 dB of spectral selectivity at λ=9  μm was achieved with a peak responsivity of 1.08  V/W.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Enhanced spatial near-infrared modulation of graphene-loaded perfect absorbers using plasmonic nanoslits

Yijun Cai, Jinfeng Zhu, Qing Huo Liu, Timothy Lin, Jianyang Zhou, Longfang Ye, and Zhiping Cai
Opt. Express 23(25) 32318-32328 (2015)

Tunable near-infrared plasmonic perfect absorber based on phase-change materials

Yiguo Chen, Xiong Li, Xiangang Luo, Stefan A. Maier, and Minghui Hong
Photon. Res. 3(3) 54-57 (2015)

Large-area fabrication of TiN nanoantenna arrays for refractory plasmonics in the mid-infrared by femtosecond direct laser writing and interference lithography [Invited]

Shahin Bagheri, Christine M. Zgrabik, Timo Gissibl, Andreas Tittl, Florian Sterl, Ramon Walter, Stefano De Zuani, Audrey Berrier, Thomas Stauden, Gunther Richter, Evelyn L. Hu, and Harald Giessen
Opt. Mater. Express 5(11) 2625-2633 (2015)

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 (9)

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

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