Purcell-enhanced electroluminescence of a unipolar light-emitting quantum device at λ = 10 µ m
Abstract
Efficient generation of radiation in the mid-and far-infrared relies primarily on lasers and coherent nonlinear optical phenomena driven by lasers. This wavelength range lacks practical and efficient luminescent devices, particularly, because the spontaneous emission rate becomes much longer than the nonradiative energy relaxation processes and therefore emitters have to count on stimulated emission produced by linear or nonlinear optical gain. However, spontaneous emission is not a fundamental property of the emitter. By engineering metamaterials composed of arrays of nanoemitters into microcavities coupled to patch antennas, we have demonstrated midinfrared electroluminescent devices emitting a collimated beam with excellent spatial properties and a factor of 100 increase in the collected power, compared to standard devices. Our results illustrate that by reshaping the photonic environment around emitting dipoles, as in the Purcell effect, it is possible to enhance the spontaneous emission and conceive efficient optoelectronic light-emitting devices that operate close to the thermodynamical equilibrium as light-emitting diodes in the visible range.
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BibTeX
@article{mastrangelo2026purcellenhanced,
title = {{Purcell-enhanced electroluminescence of a unipolar light-emitting quantum device at λ = 10 µ m}},
author = {Marta Mastrangelo and Djamal Gacemi and Axel Evirgen and Salvatore Pes and Alexandre Larrue and Pascal Filloux and Isabelle Sagnes and Abdelmounaim Harouri and Angela Vasanelli and Carlo Sirtori},
journal = {Physical Review Research},
year = {2026},
month = sep,
doi = {10.1103/fgy4-4r3c},
eprint = {2601.15193},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05767638v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Purcell-enhanced electroluminescence of a unipolar light-emitting quantum device at λ = 10 µ m
AU - Marta Mastrangelo
AU - Djamal Gacemi
AU - Axel Evirgen
AU - Salvatore Pes
AU - Alexandre Larrue
AU - Pascal Filloux
AU - Isabelle Sagnes
AU - Abdelmounaim Harouri
AU - Angela Vasanelli
AU - Carlo Sirtori
PY - 2026
DA - 2026/09/28
JO - Physical Review Research
DO - 10.1103/fgy4-4r3c
UR - https://hal.science/hal-05767638v1
AB - Efficient generation of radiation in the mid-and far-infrared relies primarily on lasers and coherent nonlinear optical phenomena driven by lasers. This wavelength range lacks practical and efficient luminescent devices, particularly, because the spontaneous emission rate becomes much longer than the nonradiative energy relaxation processes and therefore emitters have to count on stimulated emission produced by linear or nonlinear optical gain. However, spontaneous emission is not a fundamental property of the emitter. By engineering metamaterials composed of arrays of nanoemitters into microcavities coupled to patch antennas, we have demonstrated midinfrared electroluminescent devices emitting a collimated beam with excellent spatial properties and a factor of 100 increase in the collected power, compared to standard devices. Our results illustrate that by reshaping the photonic environment around emitting dipoles, as in the Purcell effect, it is possible to enhance the spontaneous emission and conceive efficient optoelectronic light-emitting devices that operate close to the thermodynamical equilibrium as light-emitting diodes in the visible range.
SN - 2643-1564
SN - 2643-1564
ER -