Ultra-small mode volume polariton condensation via precision He+ ion implantation

Y. C. Balas; X. Zhou; E. Cherotchenko; I. Kuznetsov; S. K. Rajendran; G. G. Paschos; A. V. Trifonov; A. Nalitov; H. Ohadi; P. G. Savvidis

Ultra-small mode volume polariton condensation via precision He⁺ ion implantation

Y. C. Balas^*, X. Zhou, E. Cherotchenko, I. Kuznetsov, S. K. Rajendran, G. G. Paschos, A. V. Trifonov, A. Nalitov, H. Ohadi, P. G. Savvidis^*

^*Corresponding author for this work

Research output: Working paper › Preprint

Abstract

We present a novel method for generating potential landscapes in GaAs microcavities through focused He⁺ implantation. The ion beam imprints micron-scale patterns of non-radiative centers that deplete the exciton reservoir and form a loss-defined potential minimum. Under non-resonant pumping, the resulting traps have a lateral size ≤ 1.2 µm and a three-dimensional mode volume of only ≈ 0.6 µm³ , small enough to to support a single polariton condensate mode. The implantation process maintains strong coupling and provides lithographic (< 300 nm) resolution. These loss-engineered traps effectively overcome the micrometer-scale limitations of conventional microcavity patterning techniques, opening new avenues for device development and polariton research within the quantum regime.

Original language	English
Publisher	arXiv
Number of pages	7
Publication status	Published - 27 Jun 2025

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https://arxiv.org/abs/2506.22202

Perovskite dipolaritons for room tempera: Perovskite Dipolaritons for Room Temperature Quantum Applications
Ohadi, H. (PI)
The Leverhulme Trust
2/01/23 → 1/01/26
Project: Standard

Cite this

@techreport{50af37c422e14337ad546a9db8be4cc6,

title = "Ultra-small mode volume polariton condensation via precision He+ ion implantation",

abstract = "We present a novel method for generating potential landscapes in GaAs microcavities through focused He+ implantation. The ion beam imprints micron-scale patterns of non-radiative centers that deplete the exciton reservoir and form a loss-defined potential minimum. Under non-resonant pumping, the resulting traps have a lateral size ≤ 1.2 µm and a three-dimensional mode volume of only ≈ 0.6 µm3 , small enough to to support a single polariton condensate mode. The implantation process maintains strong coupling and provides lithographic (< 300 nm) resolution. These loss-engineered traps effectively overcome the micrometer-scale limitations of conventional microcavity patterning techniques, opening new avenues for device development and polariton research within the quantum regime.",

author = "Balas, \{Y. C.\} and X. Zhou and E. Cherotchenko and I. Kuznetsov and Rajendran, \{S. K.\} and Paschos, \{G. G.\} and Trifonov, \{A. V.\} and A. Nalitov and H. Ohadi and Savvidis, \{P. G.\}",

note = "Funding: P.G.S. achlowledges support from by the Innovation Program for Quantum Science and Technology (2023ZD0300300), the Innovation Resource Allocation of Westlake University-Zhejiang Provincial Natural Science Foundation of China under Grant No. XHD24A2401, and the Westlake University project No. 102510036022301. A.N. acknowledges support by the Russian Science Foundation under Grant No. 25-12-00135. S.K.R. and H.O. acknowledge support from the Leverhulme Trust through grant No. RPG-2022-188.",

year = "2025",

month = jun,

day = "27",

language = "English",

publisher = "arXiv",

type = "WorkingPaper",

institution = "arXiv",

}

TY - UNPB

T1 - Ultra-small mode volume polariton condensation via precision He+ ion implantation

AU - Balas, Y. C.

AU - Zhou, X.

AU - Cherotchenko, E.

AU - Kuznetsov, I.

AU - Rajendran, S. K.

AU - Paschos, G. G.

AU - Trifonov, A. V.

AU - Nalitov, A.

AU - Ohadi, H.

AU - Savvidis, P. G.

N1 - Funding: P.G.S. achlowledges support from by the Innovation Program for Quantum Science and Technology (2023ZD0300300), the Innovation Resource Allocation of Westlake University-Zhejiang Provincial Natural Science Foundation of China under Grant No. XHD24A2401, and the Westlake University project No. 102510036022301. A.N. acknowledges support by the Russian Science Foundation under Grant No. 25-12-00135. S.K.R. and H.O. acknowledge support from the Leverhulme Trust through grant No. RPG-2022-188.

PY - 2025/6/27

Y1 - 2025/6/27

N2 - We present a novel method for generating potential landscapes in GaAs microcavities through focused He+ implantation. The ion beam imprints micron-scale patterns of non-radiative centers that deplete the exciton reservoir and form a loss-defined potential minimum. Under non-resonant pumping, the resulting traps have a lateral size ≤ 1.2 µm and a three-dimensional mode volume of only ≈ 0.6 µm3 , small enough to to support a single polariton condensate mode. The implantation process maintains strong coupling and provides lithographic (< 300 nm) resolution. These loss-engineered traps effectively overcome the micrometer-scale limitations of conventional microcavity patterning techniques, opening new avenues for device development and polariton research within the quantum regime.

AB - We present a novel method for generating potential landscapes in GaAs microcavities through focused He+ implantation. The ion beam imprints micron-scale patterns of non-radiative centers that deplete the exciton reservoir and form a loss-defined potential minimum. Under non-resonant pumping, the resulting traps have a lateral size ≤ 1.2 µm and a three-dimensional mode volume of only ≈ 0.6 µm3 , small enough to to support a single polariton condensate mode. The implantation process maintains strong coupling and provides lithographic (< 300 nm) resolution. These loss-engineered traps effectively overcome the micrometer-scale limitations of conventional microcavity patterning techniques, opening new avenues for device development and polariton research within the quantum regime.

M3 - Preprint

BT - Ultra-small mode volume polariton condensation via precision He+ ion implantation

PB - arXiv

ER -

Ultra-small mode volume polariton condensation via precision He+ ion implantation

Abstract

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Perovskite dipolaritons for room tempera: Perovskite Dipolaritons for Room Temperature Quantum Applications

Cite this

Ultra-small mode volume polariton condensation via precision He⁺ ion implantation