The project research control of light by light based on the electromagnetically induced transparency effect (EIT). EIT is the quantum interference effect in atoms when induced simultaneously by two combined laser fields. This quantum interference leads to the suppression of the absorption coefficient right at the atomic resonance frequency, thereby profoundly changing the linear and nonlinear optical properties of the medium. In particular, the optical properties of the EIT medium are completely controlled by external light fields. The discovery of the EIT effect was nominated for the 2012 Nobel Prize in Physics. The EIT effect has been widely studied in the world both theoretically and experimentally, in both basic and applied research. However, research on EIT in the country is still very limited, so the project will contribute to developing research topics on EIT materials in Vietnam in both theoretical and experimental research, contribute to training pedagogical, master’s and doctoral students in physics and technology transfer to interested research groups.
Project goals:
Building an analytical model to study the effects of EIT. From there, research the application of the EIT environment to control optical properties according to external fields and apply it to modern photonic devices. Building an integrated experimental system to research and control the optical properties of the multi-window EIT environment according to external fields. Developing a strong research group in the fields of photonics and applications, serving postgraduate and postdoctoral training at Vinh University and technology transfer.
Research contents of the project:
Content 1: Research on the transparent effect of multi-frequency domain EIT;
Content 2: Research on controlling the speed of light groups by external light in a multi-frequency EIT environment;
Content 3: Research on optical bistable control and all-optical switching in a multi-frequency EIT environment;
Content 4: Research on control of nonlinear optical effects in multi-frequency EIT environment;
Content 5: Research on control of pulse propagation and optical solitons in a multi-frequency EIT environment;
Content 6: Research on controlling the negative refractive index of multi-frequency EIT materials;
Content 7: Building an integrated experimental system to research and control the optical properties of the multi-frequency EIT environment.
Project impact:
Scientific impact: The results of the project will contribute to the elucidation of light control agents based on the multi-frequency EIT effect. Theoretical and experimental models are useful documents for interested research groups to refer to and use. At the same time, the project will create international research projects and contribute to strengthening Vietnam’s science in the international arena. In particular, the experimental system may be innovative to develop commercialization in the market and transfer technology to interested research groups.
Impact on education and training: The project will contribute to training physics pedagogy students and postgraduate training in Optics in Vietnam. The research content of the project will be quality scientific topics for graduate students to carry out. Successfully building theoretical models and multi-window EIT experimental systems will help develop in-depth research capacity for staff, doctoral, master’s and undergraduate students, which can carry out modern research in the field of quantum optics right in Vietnam, meeting the needs of international cooperation and academic/training exchange.
