Delay characteristics comparison of coherently coupled high-Q multi-cavity array and single embedded quantum dot cavity systems

Date

2017-01-31

Author

Kocaman, Serdar
Sayan, Gönül

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

127
views

0
downloads

The optical analogue to electromagnetically induced transparency (EIT) is modeled for two separate systems with the same formalism and the spectral characteristics together with the generated group delay are compared. First system is a coherently coupled high-Q multi-cavity array which represents the classical EIT and is limited by the finite broadening of the cavity and the second one is a single embedded quantum dot (QD) cavity system, a cavity-QD EIT, that depends on both QD broadening and cavity properties. Similar spectral characters have been observed for both systems but the former generated theoretically two times higher group delays.

Subject Keywords

Cavity quantum electrodynamics

URI

https://hdl.handle.net/11511/46950

DOI

https://doi.org/10.1117/12.2250382

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Comparison of coherently coupled multi-cavity and quantum dot embedded single cavity systems Kocaman, Serdar; Sayan, Gönül (The Optical Society, 2016-12-12) Temporal group delays originating from the optical analogue to electromagnetically induced transparency (EIT) are compared in two systems. Similar transmission characteristics are observed between a coherently coupled high-Q multi-cavity array and a single quantum dot (QD) embedded cavity in the weak coupling regime. However, theoretically generated group delay values for the multi-cavity case are around two times higher. Both configurations allow direct scalability for chip-scale optical pulse trapping and...
Excitonic effects on the nonlinear optical properties of small quantum dots KARABULUT, İBRAHİM; Safak, H.; Tomak, Mehmet (IOP Publishing, 2008-08-07) The excitonic effects on the nonlinear optical properties of small quantum dots with a semiparabolic confining potential are studied under the density matrix formalism. First, within the framework of the strong confinement approximation, we present the excitonic states and then calculate the excitonic effects on the nonlinear optical properties, such as second harmonic generation, third harmonic generation, nonlinear absorption coefficient and refractive index changes. We find the explicit analytical expres...
External Search Coil as a Means of Measuring Rotor Speed of an Induction Motor Özlü Ertan, Hatice Gülçin; Keysan, Ozan (2009-07-03) The study in this paper investigates whether the air gap harmonics can be identified by using an external search coil placed on the frame of an induction motor. For this purpose the study focuses on the prediction of rotor speed of an induction motor from external search coil emf, using spectral analysis techniques. In the first stage of the study the type of search coil which maximizes the induced emf is sought, also the position of the coil on the induced emf is investigated. Several motors are tested wit...
Error analysis and feasibility study of dynamic stiffness matrix-based damping matrix identification Özgen, Gökhan Osman (Elsevier BV, 2009-02-06) Developing a method to formulate a damping matrix that represents the actual spatial distribution and mechanism of damping of the dynamic system has been an elusive goal. The dynamic stiffness matrix (DSM)-based damping identification method proposed by Lee and Kim is attractive and promising because it identifies the damping matrix from the measured DSM without relying on any unfounded assumptions. However, in ensuing works it was found that damping matrices identified from the method had unexpected forms ...
Theoretical investigation of effects of flow oscillations on ultrasound Doppler velocity measurements Koseli, Volkan; Uludağ, Yusuf (Elsevier BV, 2012-02-01) Effects of flow oscillations on spectrum of Ultrasound Doppler Velocimetry (UDV) signals were investigated theoretically and numerically. A laminar pipe flow with a superimposed oscillating component was considered. Negative impact of oscillation on the ultrasound signal hence on the flow images was observed in the form of spreading of spectral ultrasound signal energy around mean component, leading to image artifacts. Both analytical and numerical results revealed the strong effect of a group of parameters...

Citation Formats

S. Kocaman and G. Sayan, “Delay characteristics comparison of coherently coupled high-Q multi-cavity array and single embedded quantum dot cavity systems,” 2017, vol. 10114, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46950.