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Title: The missing link between standing- and traveling-wave resonators
Abstract Optical resonators are structures that utilize wave interference and feedback to confine light in all three dimensions. Depending on the feedback mechanism, resonators can support either standing- or traveling-wave modes. Over the years, the distinction between these two different types of modes has become so prevalent that nowadays it is one of the main characteristics for classifying optical resonators. Here, we show that an intermediate link between these two rather different groups exists. In particular, we introduce a new class of photonic resonators that supports a hybrid optical mode, i.e. at one location along the resonator the electromagnetic fields associated with the mode feature a purely standing-wave pattern, while at a different location, the fields of the same mode represent a pure traveling wave. The proposed concept is general and can be implemented using chip-scale photonics as well as free-space optics. Moreover, it can be extended to other wave phenomena such as microwaves and acoustics.  more » « less
Award ID(s):
1420620 1807485 1807552
PAR ID:
10415959
Author(s) / Creator(s):
; ; ; ; ;
Date Published:
Journal Name:
Nanophotonics
Volume:
11
Issue:
19
ISSN:
2192-8614
Page Range / eLocation ID:
4427 to 4437
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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