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Related Experiment Video

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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

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Two-mode surface plasmon lasing in hexagonal arrays.

V T Tenner, M J A de Dood, M P van Exter

|January 13, 2018

Summary

This summary is machine-generated.

We achieved tunable surface-plasmon lasing in metal hole arrays using a semiconductor gain medium. Changing the pump spot size alters laser modes, their polarization, and spatial patterns.

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Area of Science:

Photonics and Plasmonics
Optoelectronics
Materials Science

Background:

Surface-plasmon lasers offer unique light-matter interactions.
Controlling laser modes is crucial for advanced optical devices.
Hexagonal metal hole arrays provide a platform for plasmonic phenomena.

Purpose of the Study:

To demonstrate tunable surface-plasmon lasing in hexagonal metal hole arrays.
To investigate the influence of optical pumping on laser modes.
To characterize the spatial and polarization properties of the generated laser modes.

Main Methods:

Fabrication of hexagonal metal hole arrays.
Integration with a semiconductor gain medium.
Optical pumping with variable spot sizes.
Characterization of laser output including wavelength, spatial distribution, and polarization.

Main Results:

Successful demonstration of surface-plasmon lasing.
Tunable laser modes achieved by varying pump spot size.
Observation of distinct spatial and polarization patterns for different modes.
Explanation of mode tuning via in-plane and out-of-plane losses.
Description of mode properties using vectorial orbital angular momentum beams.

Conclusions:

Hexagonal metal hole arrays with semiconductor gain media enable tunable surface-plasmon lasing.
Pump area size is a critical parameter for controlling laser mode characteristics.
The findings provide insights into plasmonic laser physics and potential applications in tunable optical devices.