与激光的原理相反,基于该类方案制成的器件又称为反激光(Anti-laser)。同年,Stefano Longhi提出了将CPA和激光结合起来的方案,这类器件可同时实现相干完美吸收和相干波的出射,即PT对称激光吸收体(PT-symmetric laser absorber)。鉴于完美吸收这种突破性的特性,这两种方案为之后的广泛应用奠定了基础。 (CPA也是更早一些...
PT -symmetric laser absorber - Longhi () Citation Context ... reflection) at the same ω0 PT E(z; k0) = E ∗ (−z; k0) = E +∗ f eik0z = E −∗ b e−ik0z for z ≤ − L 2 for z ≥ L 2 . We can further analyze the properties of CPA-laser using the ...
While the PT symmetric absorber has been observed in microwave metamaterials, the experimental demonstration of PT symmetric laser is still absent. Here we experimentally study PT-symmetric laser absorber in stripe waveguide. Using the concept of PT symmetry to exploit the light amplification and ...
PT -symmetric laser absorber. Phys. Rev. A 82, 031801(R), doi: 10.1103/PhysRevA.82.031801 (2010). 12. Chong, Y. D., Ge, L. & Stone, A. D. PT -symmetry breaking and laser-absorber modes in optical scattering systems. Phys. Rev. Lett. 106, 093902, doi: 10.1103/PhysRevLett....
Zhang, Single-mode laser by parity-time symmetry breaking. Science 346(6212), 972–975 (2014). https://doi.org/10.1126/science.1258479 Article ADS Google Scholar H. Hodaei, M.-A. Miri, M. Heinrich, D.N. Christodoulides, M. Khajavikhan, Parity-time symmetric microring lasers. Science...
Our work merits future study on the multi-qubit coherence flow in PT- and APT-symmetric systems, which is left as an open question. Methods Device parameters The photon-source system of the single-qubit, the pump laser power is 130 mW. In the state preparation part, three initial ...
Longhi S. PT-symmetric laser absorber Phys Rev A, 82 (3) (2010) 031801(R). Optical realization of relativistic Non-Hermitian Quantum Mechanics, Phys Rev Lett 105 (1) (2010) 013903 Google Scholar [49] Goldzak T., Mailybaev A.A., Moiseyev N. Light stops at exceptional points Phys Rev...
Abstract Physicists are always riveted in predicting how a physical system behaves as a function of time. We begin this review article by understanding various formalisms to study the dynamics of the systems. The once-accepted belief that the Hamiltonian had to be Hermitian to ensure real eigenval...
Alternatively, it is shown that coherent perfect absorber laser states are mediated by excitation of surface modes localised at all internal boundaries of the structure. The effects of the structure parameters and angle and direction of incidence on the resonant phenomena and spontaneous symmetry ...
Symmetric and linear IDS − VDS curves, as seen in the insets in the main figures, suggest a better quality of FET devices with an ohmic nature of the contacts. The current on/off ratio estimated from transfer curves (IDS vs. Vg) is found to be ~105 at VDS = 1 V ...