Pith Number

pith:UAKONBAV

pith:2026:UAKONBAVR7DUBTA5DZC7VSSGMS

not attested not anchored not stored refs pending

Solar-pumped Radiation-balanced Laser

Hanieh Fattahi, Jasvinder Brar, Michael K\"ublb\"ock, Mohammad Sahil

Ytterbium thin-disk laser with spherical concentrator achieves self-cooled radiation-balanced lasing at 28.5 kW cm^{-2}.

arxiv:2601.00649 v2 · 2026-01-02 · physics.optics

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\pithnumber{UAKONBAVR7DUBTA5DZC7VSSGMS}

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Record completeness

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4 Citations open

5 Replications open

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Claims

C1strongest claim

Ytterbium-doped medium combined with a spherical concentrator achieves self-cooled lasing at solar pump intensities of 28.5 kW cm-2 within the 1020-1033 nm window, with dual-wavelength pumping enabling radiation-balanced lasing at orders-of-magnitude lower intensities.

C2weakest assumption

The numerical model accurately captures multipass absorption, anti-Stokes fluorescence escape, and thermal balance without unmodeled losses or fabrication imperfections in the thin-disk and concentrator geometry.

C3one line summary

Ytterbium thin-disk lasers with multipass solar concentrators achieve radiation-balanced self-cooled operation at 28.5 kW/cm^{2} pump intensity and support dual-wavelength pumping at much lower intensities.

Cited by

1 paper in Pith

Microscopic theory of a radiation-balanced solar laser

Receipt and verification

First computed	2026-05-17T23:39:04.534732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a014e684158fc740cc1d1e45faca46649f4902b2c2ff2b2fd6f7f607753cd685

Aliases

arxiv: 2601.00649 · arxiv_version: 2601.00649v2 · doi: 10.48550/arxiv.2601.00649 · pith_short_12: UAKONBAVR7DU · pith_short_16: UAKONBAVR7DUBTA5 · pith_short_8: UAKONBAV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UAKONBAVR7DUBTA5DZC7VSSGMS \
  | 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: a014e684158fc740cc1d1e45faca46649f4902b2c2ff2b2fd6f7f607753cd685

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ab0cdcda4a54914f659c894651a9a419c4f2f1354ea19c95b5da96615344fa8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-01-02T11:24:49Z",
    "title_canon_sha256": "c7ebd7c89d4a98d835d63464798cba3195b05cfa5dc2135137b5cec1d2692d81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.00649",
    "kind": "arxiv",
    "version": 2
  }
}