Search Results - "Özdemir, K."

Parity–time symmetry and exceptional points in photonics by Özdemir, Ş. K., Rotter, S., Nori, F., Yang, L.

“…Exploiting the interplay between gain, loss and the coupling strength between different optical components creates a variety of new opportunities in photonics…”
Get full text

Chiral and degenerate perfect absorption on exceptional surfaces by Soleymani, S., Zhong, Q., Mokim, M., Rotter, S., El-Ganainy, R., Özdemir, Ş. K.

“…Engineering light-matter interactions using non-Hermiticity, particularly through spectral degeneracies known as exceptional points (EPs), is an emerging field…”
Get full text

High-order exceptional points in optomechanics by Jing, H., Özdemir, Ş. K., Lü, H., Nori, Franco

“…We study mechanical cooling in systems of coupled passive (lossy) and active (with gain) optical resonators. We find that for a driving laser which is…”
Get full text

Sensing with Exceptional Surfaces in Order to Combine Sensitivity with Robustness by Zhong, Q, Ren, J, Khajavikhan, M, Christodoulides, D N, Özdemir, Ş K, El-Ganainy, R

“…Exceptional points (EPs) are singularities that arise in non-Hermitian physics. Current research efforts focus only on systems supporting isolated EPs…”
Get full text

Dynamical control of quantum heat engines using exceptional points by Zhang, J.-W., Zhang, J.-Q., Ding, G.-Y., Li, J.-C., Bu, J.-T., Wang, B., Yan, L.-L., Su, S.-L., Chen, L., Nori, F., Özdemir, Ş. K., Zhou, F., Jing, H., Feng, M.

“…A quantum thermal machine is an open quantum system coupled to hot and cold thermal baths. Thus, its dynamics can be well understood using the concepts and…”
Get full text

Loss-induced suppression and revival of lasing by Peng, B., Özdemir, Ş. K., Rotter, S., Yilmaz, H., Liertzer, M., Monifi, F., Bender, C. M., Nori, F., Yang, L.

“…Controlling and reversing the effects of loss are major challenges in optical systems. For lasers, losses need to be overcome by a sufficient amount of gain to…”
Get full text

Hierarchical Construction of Higher-Order Exceptional Points by Zhong, Q., Kou, J., Özdemir, Ş. K., El-Ganainy, R.

“…The realization of higher-order exceptional points (HOEPs) can lead to orders of magnitude enhancement in light-matter interactions beyond the current…”
Get full text

Exceptional Photon Blockade: Engineering Photon Blockade with Chiral Exceptional Points by Huang, Ran, Özdemir, Ş. K., Liao, Jie‐Qiao, Minganti, Fabrizio, Kuang, Le‐Man, Nori, Franco, Jing, Hui

“…Non‐hermitian spectral degeneracies, known as exceptional points (EPs), feature the simultaneous coalescence of both eigenvalues and the associated eigenstates…”
Get full text

Understanding latent drivers of firm behaviour: A new methodological approach applied to agents’ company visit scores by Özdemir, K. Azim

“…This paper proposes the use of structural equation modelling (SEM) in analysing the latent drivers of firm behaviour. We first develop a conceptual framework…”
Get full text

Quantum plasmonics by Tame, M. S., McEnery, K. R., Özdemir, Ş. K., Lee, J., Maier, S. A., Kim, M. S.

“…Quantum plasmonics is a rapidly growing field of research that involves the study of the quantum properties of light and its interaction with matter at the…”
Get full text

Quantum random number generation using an on-chip nanowire plasmonic waveguide by Strydom, C, Soleymani, S, Özdemir, Ş K, Tame, M S

“…Abstract Quantum random number generators employ the inherent randomness of quantum mechanics to generate truly unpredictable random numbers, which are…”
Get full text

Enhancement of Quantum Heat Engine by Encircling a Liouvillian Exceptional Point by Bu, J-T, Zhang, J-Q, Ding, G-Y, Li, J-C, Zhang, J-W, Wang, B, Ding, W-Q, Yuan, W-F, Chen, L, Özdemir, Ş K, Zhou, F, Jing, H, Feng, M

“…Quantum heat engines are expected to outperform the classical counterparts due to quantum coherences involved. Here we experimentally execute a single-ion…”
Get full text

Regional economic growth in Turkey: the effects of physical, social and financial infrastructure investment by Saygılı, Hülya, Özdemir, K. Azim

“…This paper explores the roles different categories of infrastructure investment play in promoting economic growth across regions in Turkey. There are two…”
Get full text

Control of spontaneous emission dynamics in microcavities with chiral exceptional surfaces by Zhong, Q., Hashemi, A., Özdemir, Ş. K., El-Ganainy, R.

“…We investigate spontaneous emission from a quantum emitter located within the mode volume of a microring resonator that features chiral exceptional points. We…”
Get full text

Quantum Statistics of Surface Plasmon Polaritons in Metallic Stripe Waveguides by Di Martino, Giuliana, Sonnefraud, Yannick, Kéna-Cohen, Stéphane, Tame, Mark, Özdemir, Şahin K, Kim, M. S, Maier, Stefan A

“…Heralded single surface plasmon polaritons are excited using photons generated via spontaneous parametric down conversion. The mean excitation rates, intensity…”
Get full text

Topological lattices lit at the corners by Özdemir, Şahin K., El-Ganainy, Ramy

“…Higher-order topological states that are robust against certain classes of disorder and pinned to lattice corners are now observed in photonics platforms…”
Get full text

Exceptional points induced by unidirectional coupling in electronic circuits by Zhao, Wenzheng, Zhang, Yeang, Gao, Zixuan, Peng, Delong, Kou, Jun-long, Lu, Yan-qing, El-Ganainy, Ramy, Özdemir, Şahin K., Zhong, Qi

“…Exceptional points in non-Hermitian systems have attracted considerable attention due to their novel applications in several fields such as optics,…”
Get full text

Reverse PT phase transition across exceptional points of any order by Teimourpour, Mohammad H., Özdemir, ahin K., El-Ganainy, Ramy

“…We have recently demonstrated that higher-order exceptional points can be engineered in PT symmetric networks by means of recursive bosonic algebra. In these…”
Get full text

Plasmon Injection to Compensate and Control Losses in Negative Index Metamaterials by Sadatgol, Mehdi, Özdemir, Şahin K, Yang, Lan, Güney, Durdu Ö

“…Metamaterials have introduced a whole new world of unusual materials with functionalities that cannot be attained in naturally occurring material systems by…”
Get full text

Anomalous time delays and quantum weak measurements in optical micro-resonators by Asano, M., Bliokh, K. Y., Bliokh, Y. P., Kofman, A. G., Ikuta, R., Yamamoto, T., Kivshar, Y. S., Yang, L., Imoto, N., Özdemir, Ş.K., Nori, F.

“…Quantum weak measurements, wavepacket shifts and optical vortices are universal wave phenomena, which originate from fine interference of multiple plane waves…”
Get full text