Spectral Singularities, Threshold Gain, and Output Intensity for a Slab Laser with Mirrors

@article{Dougan2017SpectralST,
  title={Spectral Singularities, Threshold Gain, and Output Intensity for a Slab Laser with Mirrors},
  author={Keremcan Dougan and Ali Mostafazadeh and Mustafa Sarısaman},
  journal={arXiv: Optics},
  year={2017}
}

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References

SHOWING 1-10 OF 37 REFERENCES

Spectral Singularities and CPA‐Laser Action in a Weakly Nonlinear PT ‐Symmetric Bilayer Slab

We study optical spectral singularities of a weakly nonlinear PT ‐symmetric bilinear planar slab of optically active material. In particular, we derive the lasing threshold condition and calculate

Nonlinear spectral singularities of a complex barrier potential and the lasing threshold condition

A spectral singularity is a mathematical notion with an intriguing physical realization in terms of certain zero-width resonances. In optics it manifests as lasing at the threshold gain. We explore

Time-Reversed Lasing and Interferometric Control of Absorption

The device, termed a “coherent perfect absorber,” functions as an absorptive interferometer, with potential practical applications in integrated optics, and it is demonstrated that absorption can be reduced substantially by varying the relative phase of the incident fields.

Tunable spectral singularities: coherent perfect absorber and laser in an atomic medium

We propose a scheme for a coherent perfect absorber (CPA) and a laser in an atomic medium with gain and loss, obeying simultaneously a spectral singularity and a time-reversed spectral singularity,

Coherent perfect absorbers: Time-reversed lasers

The effect may be demonstrated in a Si slab illuminated in the 500–900nm range and form a novel class of linear optical elements—absorptive interferometers—which may be useful for controlled optical energy transfer.

Self-dual spectral singularities and coherent perfect absorbing lasers without -symmetry

A -symmetric optically active medium that lases at the threshold gain also acts as a complete perfect absorber at the laser wavelength. This is because spectral singularities of -symmetric complex

Cavity-controlled spectral singularity

We study theoretically a parity-time (PT)-symmetric, saturable, balanced gain–loss system in a ring-cavity configuration. The saturable gain and loss are modeled by a two-level medium with or without

PT-symmetric laser absorber

In a recent work, Y. D. Chong et al. [Phys. Rev. Lett. 105, 053901 (2010)] proposed the idea of a coherent perfect absorber (CPA) as the time-reversed counterpart of a laser, in which a purely

Optical Spectral Singularities as Threshold Resonances

Spectral singularities are among generic mathematical features of complex scattering potentials. Physically they correspond to scattering states that behave like zero-width resonances. For a simple