visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-11-15 16:00 
연사  
장소 E6-6, #119 
물리학과에서는 아래와 같이 세미나를 개최하고자 하오니, 
관심있는 분들의 많은 참석 부탁드립니다.
 
Date: 16:00~18:00 PM, 15th Nov (Wed)
 
Place: E6-6, #119호
 
Speaker: Prof. Cristian Ciraci(Istituto Italiano di Tecnologia (IIT))
 
Title: Quantum hydrodynamic theory for plasmonics: from molecule-coupling to nonlinear optics
 
Abstract: 

Metals support surface plasmons at optical wavelengths and have the ability to localize light to sub-wavelength regions. Nano-gap plasmonic systems – in which two or more metallic nanoparticles are separated only few nanometers from each other by an insulating spacer – have been predicted to produce enormous field enhancements (as much as thousands of times that of the incident radiation). For the narrowest (< 1 nm) gaps, light can be so tightly confined that the nonlocality associated with the dielectric response of the metal and quantum effects can have a strong impact on the scattering properties of the system, placing strict bounds on the ultimate field enhancement [1]. A reliable way to theoretically describe and numerically model optical properties of plasmonic nanostructures with different length scales requires methods beyond classical electromagnetism. In this context, it becomes very important to develop simulation techniques to take into account quantum microscopic features at the scale of billions of atoms. A promising solution is given by the hydrodynamic theory, which takes into account the nonlocal behavior of the electron response by including the electron pressure and it can be generalized so that it can describe electron spill-out and tunneling effects [2, 3, 4]. This method allows to explore light-matter interactions in extreme scenarios in which microscopic features can strongly affect the macroscopic optical response. In this seminar, I will present the quantum hydrodynamic theory for plasmonics and will discuss some applications including, photon emission [5], strong-coupling [6] and nonlinear optics [7, 8]. 

 

 References

 [1] C. Cirac`ı, R. T. Hill, J. J. Mock, Y. A. Urzhumov, A. I. Fernandez-Dominguez, S. A. Maier, J. B. Pendry, A. Chilkoti, and D. R. Smith, “Probing the ultimate limits of plasmonic enhancement,” Science, vol. 337, no. 6098, pp. 1072 – 1074, 2012. 

 [2] C. Cirac`ı and F. D. Sala, “Quantum hydrodynamic theory for plasmonics: Impact of the electron density tail,” Physical Review B, vol. 93, no. 20, p. 205405, 2016. 

 [3] C. Cirac`ı, “Current-dependent potential for nonlocal absorption in quantum hydrodynamic theory,” Physical Review B, vol. 95, no. 24, p. 245434, 2017. 

 [4] H. M. Baghramyan, F. D. Sala, and C. Cristian, “Laplacian-Level Quantum Hydrodynamic Theory for Plasmonics,” Physical Review X, vol. 11, no. 1, p. 011049, 2021. 

 [5] H. M. Baghramyan and C. Cirac`ı, “Fluorescence quenching in plasmonic dimers due to electron tunneling,” Nanophotonics, vol. 11, no. 11, pp. 2473–2482, 2022.

 [6] C. Cirac`ı, R. Jurga, M. Khalid, and F. D. Sala, “Plasmonic quantum effects on single-emitter strong coupling,” Nanophotonics, vol. 8, no. 10, pp. 1821–1833, 2019. 

 [7] M. Khalid and C. Cirac`ı, “Enhancing second-harmonic generation with electron spill-out at metallic surfaces,” Communications Physics, vol. 3, no. 1, p. 214, 2020. 

 [8] F. De Luca and C. Cirac`ı, “Impact of Surface Charge Depletion on the Free Electron Nonlinear Response of Heavily Doped Semiconductors,” Physical Review Letters, vol. 129, no. 12, p. 123902, 2022.

 
번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
283 2019-01-23 16:00    Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
282 2022-04-13 10:30    Harnessing topology and correlations from singularities in 3d-kagome metals
281 2024-05-08 16:30    [High Energy Theory Seminar] Black Holes from Heavy Operators in N=4 SYM
280 2023-08-23 16:00    [High Energy Theory Seminar] A spacetime tensor network for AdS3/CFT2
279 2023-01-09 16:00    Non-Hermitian Hopf-bundle Matter. Moon Jip Park (IBS-PCS)
278 2025-05-13 16:00  Mr. Heonjoon Park(Univ. Washington, USA)  Fractional Quantum Anomalous Hall Effect file
277 2020-12-11 14:30    Antisymmetric interlayer exchange coupling in magnetic multilayers
276 2024-01-24 15:00    Determination of single molecule loading rate during mechanotransduction file
275 2020-11-26 16:00    2020 가을학기 광학분야 특별세미나(Light Engineering Beyond the Diffraction Limit)
274 2024-04-11 16:00    Theoretical Studies of the Electric Field Induced Thermal Hall Effect in the Quantum Dimer Magnets XCuCl3 (X = Tl, K)
273 2016-10-17 11:00    IMS and examples of the studies on optoelectronic materials
272 2019-08-19 10:00    Tutorials on Multimode Quantum Optics in the Continuous Variable Regime file
271 2022-09-21 10:30    [Update 세미나 영상] Distinguished Lecture 'The Magic of Moiré Quantum Matter' Prof. Pablo Jarillo-Herrero(Department of Physics, MIT) file
270 2022-08-08 14:00    Classical Shadow Tomography for Analog Quantum Simulators
269 2025-04-21 16:00  Prof. Ambrose Sungseok Seo (Univ of Kentucky)  Condensed matter physics? All you gotta do is just meet me at the ... file
268 2020-12-09 10:00    Searching for the QCD axion with the ARIADNE experiment file
267 2019-08-22 16:00    Physics and Applications in Nanoelectronics and Nonomechanics file
266 2024-05-28 11:00    동적평균장 이론 소개
265 2022-03-25 11:00    (응집물리 세미나) Hund's metallicity in ruthenate systems file
264 2016-08-04 14:30    Relational Logic (with applications to Quantum Mechanics, String Theory, Cosmology, Neutrino Oscillations, Statistical Mechanics)