Electromagnetically induced transparency for Λ-like systems with a structured continuum and broad-band coupling laser

Khoa, Doan Quoc; Long, Van Cao; Leoński, W.

doi:10.1088/0031-8949/2012/t147/014008

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…We presented detailed result for both strong and weak fluctuations regimes. As in [15], we believe that the model considered here is more realistic than that given in [2], because the amplitudes of the real laser used in experiments always fluctuate.…”

Section: Discussionmentioning

confidence: 93%

“…As it has been emphasized in [3], the model of white noise for the field is interesting by itself because it describes the electric field amplitude of the multimode laser operating without correlation between the modes. This white noise model has been also used in our other paper [15], where in a Λ-like configuration of electromagnetically induced transparency, the laser control field has the white noise component. Then the considered model is more realistic experimentally, because the amplitudes of the real laser light always contain some fluctuation component.…”

Section: Introductionmentioning

confidence: 99%

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A broad-band laser-driven double Fano system—photoelectron spectra

Khoa¹,

Long²,

Leoński³

2012

Phys. Scr.

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Fano profiles, which with their asymmetric character, have many potential applications in technology. The design of Fano profiles into optical systems may create new non-linear and switchable metamaterials, high-quality optical waveguides, ultrasensitive media for chemical or biosensing etc. In this paper, we consider an external field driven double Fano model, in which, instead of one autoionizing state, there are two discrete states embedded in one continuum. We assume further that the external electromagnetic field can be decomposed into two parts: a deterministic (or coherent) part and a randomly fluctuating chaotic component, which is a δ-correlated, Gaussian, Markov and stationary process (white noise). This assumption corresponds to the case of the real multimode laser operating without any correlation between the modes. We solve a set of coupled stochastic integro-differential equations involving the Fano model with two discrete levels. We derive an exact formula by determining the photoelectron spectrum and compare it with the results obtained earlier in our previous papers.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

A broad-band laser-driven double Fano system—photoelectron spectra

Khoa¹,

Long²,

Leoński³

2012

Phys. Scr.

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“…γ has the form By assuming the same values for the parameters describing the atomic system and its interaction with external fields, we easily compare our results with those in [11,[13][14][15][16]. Thus, we have assumed that the total autoionization rate ).…”

Section: The Susceptibility Spectrummentioning

confidence: 93%

“…It has been shown that the presence of the second AI level leads to the additional EIT window appearance. In this paper we use the same method applied in [15,16] to consider the model that studied in [14] by modeling of fluctuating control field as a white noise. Then the set of coupled stochastic integrodifferential equations involved in the problem can be also solved exactly.…”

Section: Introductionmentioning

confidence: 99%

Ảnh Hưởng Của Laser Liên Kết Băng Rộng Đối Với Trong Suốt Cảm Ứng Điện Từ Của Hệ Kiểu Λ Với Cấu Trúc Fano

Đoàn¹,

Nguyễn²,

Vũ³

2021

SJ TTU

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Trong suốt cảm ứng điện từ cho hệ kiểu Λ bao gồm hai trạng thái giới hạn dưới và một liên tục phẳng liên kết với hai trạng thái tự ion hóa được gọi là liên tục Fano đôi gắn vào trong nó, trong đó laser liên kết được mô hình hóa bởi nhiễu trắng đã được nghiên cứu. Đối với hệ chứa các mức tự ion hóa rời rạc như thế chúng tôi tìm được hệ các phương trình vi tích phân ngẫu nhiên liên kết có thể được lấy trung bình chính xác. Từ đó tìm được biểu thức chính xác xác định nghiệm dừng đối với độ cảm điện. Phổ thành phần tán sắc và hấp thụ của trong suốt cảm ứng điện từ đã tìm được và so sánh chúng với những kết quả thu được trước đó bởi chúng tôi và các tác giả khác.

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“…Hence, it is worthwhile to start with an extreme case of white noise. Even in this case we can obtain several interesting results [7][8][9]. Here we extend the formalism given in [10] to a more realistic case, when the laser width is taken into account and discuss a simple quantum information application of Kerr nonlinearities, namely for generation of entangled optical qubits from classical light.…”

mentioning

confidence: 99%