Abstract

We report a numerical and experimental study of an on-chip optical spectrometer, utilizing propagating surface plasmon polaritons in the telecom spectral range. The device is based on two holographic gratings, one for coupling, and the other for decoupling free-space radiation with the surface plasmons. This 800μm×100μm on-chip spectrometer resolves 17 channels spectrally separated by 3.1 nm, spanning a freely tunable spectral window, and is based on standard lithography fabrication technology. We propose two potential applications for this new device; the first employs the holographic control over the amplitude and phase of the input spectrum, for intrinsically filtering unwanted frequencies, like pump radiation in Raman spectroscopy. The second prospect utilizes the unique plasmonic field enhancement at the metal–dielectric boundary for the spectral analysis of very small samples (e.g., Mie scatterers) placed between the two gratings.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Subwavelength plasmonics for graded-index optics on a chip

Meir Grajower, Gilad M. Lerman, Ilya Goykhman, Boris Desiatov, Avner Yanai, David R. Smith, and Uriel Levy
Opt. Lett. 38(18) 3492-3495 (2013)

On-chip polarization splitter based on a multimode plasmonic waveguide

Fengyuan Gan, Chengwei Sun, Hongyun Li, Qihuang Gong, and Jianjun Chen
Photon. Res. 6(1) 47-53 (2018)

Demonstration of a compressive-sensing Fourier-transform on-chip spectrometer

Hugh Podmore, Alan Scott, Pavel Cheben, Aitor V. Velasco, Jens H. Schmid, Martin Vachon, and Regina Lee
Opt. Lett. 42(7) 1440-1443 (2017)

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 (4)

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 (6)

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