Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 52 for “"induced transparency"”.
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Extreme optomechanically induced transparency
… and experimental implementation optomechanically induced transparency utilizing ultra low loss mechanical oscillators and high laser power to achieve extremely strong optical induced transparency effects. This system modifies the light transmission properties of the optical cavity reducing the …
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Electromagnetically induced transparency by NMR
Electromagnetically Induced Transparency (EIT) is a quantum nonlinear optical interference effect in which light at a certain frequency makes normally opaque atomic systems transparent to light at another frequency. Recent experiments in Atomic Molecular and Optical (AMO) physics demonstrated how …
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Progress towards cavity induced transparency
Inspired by electromagnetically induced transparency (EIT), cavity induced transparency (CIT) uses a cavity rather than a laser to couple a ground state with the excited state of a three-level system. In this thesis, I discuss the theory behind CIT and present the progress in our current experiment …
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Brillouin scattering induced transparency and generation of slow and fast light
Electromagnetically induced transparency (EIT) is generation of a narrow window in which electromagnetic field absorption is inhibited. Experimentally, a probe tuned to a certain absorption wavelength is allowed to transmit through a gaseous vapor only in the presence of a second control laser. In …
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Electromagnetically Induced Transparency and electron spin dynamics using superconducting quantum circuits
… with atoms, known as Electromagnetically Induced Transparency (EIT). An EIT (denoted as S-EIT) based technique has been proposed to demonstrate microwave transparency using a superconductive quantum circuit exhibiting two metastable states (e.g., a qubit) and a third, shorter-lived state …
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Brillouin scattering induced transparency: Coherent optomechanical interaction leading to slow light and non-reciprocal light transmission
… This process is called Brillouin scattering induced transparency (BSIT), and similar effects have previously been observed in both atomic vapors (using electronic coherent states) and optomechanical devices (using standing-wave mechanical resonances). Distinct from past efforts, the BSIT …
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Comparative Study of Forward and Diffusely Scattered Light in a Coherently Prepared Ultracold Rubidium Gas
… media under conditions of electromagnetically induced transparency, for applications in realistic systems. Toward this end, a magneto optical trap (MOT) of <sup>87</sup>Rb has been built, and the atomic vapor sample characterized in terms of atomic density, shape and size, temperature, and …
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Slow Light Based on Quantum Effects in Quantum Wells and Quantum Dots
… oscillation and spin related electromagnetically induced transparency. We identify different pump-and-probe schemes and develop comprehensive theoretical models which include important physical mechanisms in semiconductors. Semiconductors have unique properties which are inaccessible to other slow …
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Integrated-Photonics Devices and Architectures for Advanced Cooling of Trapped Ions
… polarization-gradient and electromagnetically-induced-transparency cooling can offer better cooling performance in multi-ion systems, but have not been demonstrated on an integrated-photonics platform. This thesis demonstrates key integrated-photonics devices and architectures to enable …
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Optical imaging of Rydberg atoms
… an experiment exploring electromagnetically induced transparency (EIT) in Rydberg atoms in order to observe optical nonlinearities at the single photon level. ⁸⁷Rb atoms are trapped and cooled using a magneto-optical trap (MOT) and a far off resonance dipole trap (FORT). Once the system is …
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Slow and fast light by spectral hole-burning in the solid state
… Rabi oscillations, free-induction decay and self-induced transparency (SIT). Switching between slow and fast light was obtained by transient hole-burning, which was reported for the first time. These results could pave the way to applications such as all optical switches. In addition, light could …
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Electromagnetically active artificial material comprising multidimensional microplasma photonic crystals
… and plasma. Interesting phenomena such as plasma-induced transparency, mode splitting, and Fano-like lineshapes are observed from different crystal structures under different experimental conditions. Generally, igniting plasma microcolumns in a photonic crystal will cause blue-shifting and …
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Optical Control and Spectroscopic Studies of Collisional Population Transfer in Molecular Electronic States
… (AT) effect and electromagnetically induced transparency (EIT) applied to molecular systems are the focus of this Dissertation in the context of high resolution molecular spectroscopy. We demonstrate that the AT effect can be used to manipulate the spin character of a spin-orbit …
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Coherent atom-light interactions in multi-level systems
… experiments performed using electromagnetically induced transparency (EIT) in Rubidium vapour cells. Starting with a simple three-level Λ-system, extra complexity is introduced by adding an additional control beam. This makes the switching from narrow transmitting resonances to absorbing …
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Coherent Processes in Rare-Earth-Ion-Doped Solids
… superradiance and electromagnetically induced transparency, which have been experimentally implemented using rare-earth-ion-doped crystals. The rare-earths are a class of elements that have in common, an atomic structure that allows for very long lifetimes as well as coherence times, …
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CORRELATED PHOTON PAIRS AND MULTIPHOTON STATES FROM A COLD ATOMIC ENSEMBLE
… bandwidth governed by electromagnetically induced transparency. The pair production exhibits quartic scaling with optical depth, revealing the crucial role of collective pair emission beyond independent-emitter models. The generated two-mode squeezed vacuum enables time-resolved …
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An approach to bridging atom optics and bulk spin quantum computation
… quantum-optical phenomenon, electromagnetically induced transparency, using NMR quantum computation. Both examples build on theoretical analysis, and include experimental results, showing how atomic physics could be very useful for implementing certain quantum operations and vice versa. These …
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Cooperative Optical Non-linearity in a blockaded Rydberg Ensemble
… a cold gas of Rydberg atoms. Electromagnetically induced transparency (EIT) is used to map the strong dipolar interactions onto an optical transition, resulting in a cooperative effect where the optical response of a single atom is modified by the surrounding atoms due to dipole blockade. This …
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On-chip Group and Phase Velocity Control for Classical and Quantum Optical Devices
… via optical analogue of electromagnetically induced transparency in an originally non-transmitting wavelength region.
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Dynamics in a Fermi lattice gas
… and Rydberg states via electromagnetically induced transparency. This measurement is a first step toward inducing Rydberg-dressed interactions in optical lattices.
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