Pith Number

pith:CSQN27DC

pith:2026:CSQN27DCYFV7SSBFHWRSRK4POJ

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High-Efficiency InGaP-on-Insulator Microresonator Nonlinear Conversion and Entanglement Generation

Amalu Shimamura, Galan Moody, John Bowers, Joshua Castro, Kevin Silverman, Lillian Thiel, Lucas Wang, Max Meunier, Nicholas Lewis, Richard Mirin, Xuefeng Li, Yiming Pang

Surface treatment reduces loss in InGaP-on-insulator microresonators to deliver 3.01×10^5 %/W second-harmonic generation and 11.7 MHz/μW photon-pair rates.

arxiv:2605.15481 v1 · 2026-05-14 · physics.app-ph

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Claims

C1strongest claim

The surface treatment method provides a 3.5--4× linear performance enhancement, enabling a second-harmonic generation efficiency of 3.01×10^5 %/W and a photon-pair generation rate of 11.7 MHz/μW with coincidence-to-accidental ratio as high as 10,000.

C2weakest assumption

The dominant loss mechanism identified via mode-profile analysis is the primary contributor and is effectively mitigated by the surface treatment without introducing compensating losses or degrading the intrinsic nonlinearity, and the statistical analysis of quality factor versus radius correctly identifies the optimal geometry for balancing nonlinear interaction strength against bending loss.

C3one line summary

Surface treatment reduces propagation loss in InGaP-on-insulator resonators, enabling 3.01×10^5 %/W second-harmonic generation efficiency and 11.7 MHz/μW photon-pair rates with high coincidence-to-accidental ratio.

References

2 extracted · 2 resolved · 0 Pith anchors

[1] Enhanced second-harmonic generation in algaas microring resonators, 2007

[2] On-and o!-resonance second-harmonic generation in gaas microdisks, 2011

Cited by

1 paper in Pith

A Wafer-Scale Heterogeneous III-V-on-Silicon Nitride Quantum Photonic Platform

Receipt and verification

First computed	2026-05-20T00:01:00.813745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14a0dd7c62c16bf948253da328ab8f7249e720b90e30fb1fcb3946c598c20fdf

Aliases

arxiv: 2605.15481 · arxiv_version: 2605.15481v1 · doi: 10.48550/arxiv.2605.15481 · pith_short_12: CSQN27DCYFV7 · pith_short_16: CSQN27DCYFV7SSBF · pith_short_8: CSQN27DC

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CSQN27DCYFV7SSBFHWRSRK4POJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 14a0dd7c62c16bf948253da328ab8f7249e720b90e30fb1fcb3946c598c20fdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f774a8f1d7bb10a5b7c5139b43b03f937f7b8dc58ae24a4152b2989857f4b8c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2026-05-14T23:50:06Z",
    "title_canon_sha256": "7372f583c8d179b437c1c29914b6829187e06fb6858410a2dc5a79abf1d7d322"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15481",
    "kind": "arxiv",
    "version": 1
  }
}