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PreprintarXiv licencearXiv

Relaxation characteristics and spectral compression in the system of coupled radiating oscillators

  • Henrik Parsamyan
  • Hasmik Shahinyan
  • Khachatur Nerkararyan
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Abstract

The electromagnetic response of two identical coupled oscillators to an ultrashort pulse is investigated. Due to interference between the radiation emitted by the constituent oscillators, the temporal dynamics of the dipole radiation from the system are governed by a nontrivial relationship between their dipole moment amplitudes and differ markedly from those of an isolated oscillator. An analysis based on coupled-mode theory demonstrates that, under appropriate conditions, the energy of an incident ultrashort pulse can be converted into quasi-monochromatic radiation with high efficiency. The theoretical results are supported by qualitative numerical simulations of thin conductive rods resonant in the terahertz frequency range and separated by a deeply subwavelength distance, providing a physical realization of the coupled radiating-oscillator system.

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Cite

BibTeXRIS
BibTeX
@misc{parsamyan2026relaxation,
  title = {{Relaxation characteristics and spectral compression in the system of coupled radiating oscillators}},
  author = {Henrik Parsamyan and Hasmik Shahinyan and Khachatur Nerkararyan},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.01206},
  eprint = {2611.01206},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.01206},
}
RIS
TY  - UNPB
TI  - Relaxation characteristics and spectral compression in the system of coupled radiating oscillators
AU  - Henrik Parsamyan
AU  - Hasmik Shahinyan
AU  - Khachatur Nerkararyan
PY  - 2026
DA  - 2026/11/01
PB  - arXiv
DO  - 10.48550/arxiv.2611.01206
UR  - https://arxiv.org/abs/2611.01206
AB  - The electromagnetic response of two identical coupled oscillators to an ultrashort pulse is investigated. Due to interference between the radiation emitted by the constituent oscillators, the temporal dynamics of the dipole radiation from the system are governed by a nontrivial relationship between their dipole moment amplitudes and differ markedly from those of an isolated oscillator. An analysis based on coupled-mode theory demonstrates that, under appropriate conditions, the energy of an incident ultrashort pulse can be converted into quasi-monochromatic radiation with high efficiency. The theoretical results are supported by qualitative numerical simulations of thin conductive rods resonant in the terahertz frequency range and separated by a deeply subwavelength distance, providing a physical realization of the coupled radiating-oscillator system.
ER  -