Abstract

We show that the spin angular momentum (SAM) carried by a surface mode can be linked to the expectation value, with respect to the distribution of optical power flow, of its decay constant by itself or divided by the product of permittivity and permeability of the medium. Rewriting the formulas for the SAM of a surface mode using the relation between the SAM density and the Poynting vector and then normalizing the light field so that the surface mode carries unit power, we derive novel formulas that show the linear relation between the SAM and those expectation values. The effect of propagation loss is also discussed briefly.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Relation of the angular momentum of surface modes to the position of their power-flow center

Kyoung-Youm Kim and Alan Wang
Opt. Express 22(24) 30184-30190 (2014)

Origin of the Abraham spin angular momentum of surface modes

Kyoung-Youm Kim
Opt. Lett. 39(3) 682-684 (2014)

Right- and left-handed rules on the transverse spin angular momentum of a surface wave of photonic crystal

Jinbing Hu, Tongnan Xia, Xiaoshu Cai, Shengnan Tian, Hanming Guo, and Songlin Zhuang
Opt. Lett. 42(13) 2611-2614 (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 (3)

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 (10)

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