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

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Electromagnetic surface modes in a magnetized quantum electron-hole plasma.

¹Department of Physics, Umeå University, SE-901 87 Umeå, Sweden. apmisra@visva-bharati.ac.in

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|July 7, 2011

Summary

Quantum tunneling influences surface electromagnetic waves in semiconductor plasmas. A forward propagating mode is identified, with low-frequency behavior matching experimental observations in n-type InSb.

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Area of Science:

Condensed Matter Physics
Quantum Mechanics
Semiconductor Plasma Physics

Background:

Surface electromagnetic waves are crucial in understanding plasma dynamics.
Quantum effects, like tunneling, can alter classical wave propagation in semiconductors.
Semiconductor plasmas, particularly those with high conductivity, exhibit complex behaviors.

Purpose of the Study:

To investigate the propagation of surface electromagnetic waves in quantum electron-hole semiconductor plasmas under a uniform magnetic field.
To analyze the impact of quantum tunneling on these wave modes.
To compare theoretical findings with experimental observations in materials like n-type InSb.

Main Methods:

Theoretical analysis of surface electromagnetic wave propagation.
Inclusion of quantum tunneling effects in the wave equations.
Examination of the classical limit (ħ→0) for comparison with non-quantum theories.
Study of high-conductivity and degenerate electron-hole plasma conditions.

Main Results:

A forward propagating surface electromagnetic wave mode was identified due to quantum tunneling.
One low-frequency mode in the classical limit closely resembles experimentally observed waves in n-type InSb.
Surface wave modes are significantly altered in high-conductivity, degenerate semiconductor plasmas.

Conclusions:

Quantum tunneling plays a significant role in modifying surface electromagnetic wave propagation in semiconductor plasmas.
The theoretical model provides insights into experimentally observed phenomena in materials like n-type InSb.
External magnetic fields and quantum effects substantially influence surface wave characteristics in complex semiconductor systems.