dorsal/arxiv
View SchemaDirectional emission, increased free spectral range and mode Q-factors in 2-D wavelength-scale optical microcavity structures
| Authors | Svetlana V. Boriskina, Trevor M. Benson, Phillip Sewell, Alexander I. Nosich |
|---|---|
| Categories | |
| ArXiv ID | physics/0607200 |
| URL | https://arxiv.org/abs/physics/0607200 |
| Journal | IEEE J. Select. Topics Quantum Electron. 12(6, part 1) 1175-1182 (2006) |
Abstract
Achieving single-mode operation and highly directional (preferably unidirectional) in-plane light output from whispering-gallery (WG) mode semiconductor microdisk resonators without seriously degrading the mode Q-factor challenges designers of low-threshold microlasers. To address this problem, basic design rules to tune the spectral and emission characteristics of micro-scale optical cavity structures with nanoscale features by tailoring their geometry are formulated and discussed in this paper. The validity and usefulness of these rules is demonstrated by reviewing a number of previously studied cavity shapes with global and local deformations. The rules provide leads to novel improved WG-mode cavity designs, two of which are presented: a cross-shaped photonic molecule with introduced asymmetry and a photonic-crystal-assisted microdisk resonator. Both these designs yield degenerate mode splitting, as well as Q-factor enhancement and directional light output of one of the split modes.
{
"annotation_id": "ae046a5c-ef06-474c-b745-71673f6cf6c3",
"date_created": "2026-03-02T18:01:10.262000Z",
"date_modified": "2026-03-02T18:01:10.262000Z",
"file_hash": "743d75e8bbae953cf8fb3055f10a178f3f3867c18a102e2cb7d4473e3aa6a210",
"private": false,
"record": {
"abstract": "Achieving single-mode operation and highly directional (preferably\nunidirectional) in-plane light output from whispering-gallery (WG) mode\nsemiconductor microdisk resonators without seriously degrading the mode\nQ-factor challenges designers of low-threshold microlasers. To address this\nproblem, basic design rules to tune the spectral and emission characteristics\nof micro-scale optical cavity structures with nanoscale features by tailoring\ntheir geometry are formulated and discussed in this paper. The validity and\nusefulness of these rules is demonstrated by reviewing a number of previously\nstudied cavity shapes with global and local deformations. The rules provide\nleads to novel improved WG-mode cavity designs, two of which are presented: a\ncross-shaped photonic molecule with introduced asymmetry and a\nphotonic-crystal-assisted microdisk resonator. Both these designs yield\ndegenerate mode splitting, as well as Q-factor enhancement and directional\nlight output of one of the split modes.",
"arxiv_id": "physics/0607200",
"authors": [
"Svetlana V. Boriskina",
"Trevor M. Benson",
"Phillip Sewell",
"Alexander I. Nosich"
],
"categories": [
"physics.optics"
],
"journal_ref": "IEEE J. Select. Topics Quantum Electron. 12(6, part 1) 1175-1182\n (2006)",
"title": "Directional emission, increased free spectral range and mode Q-factors in 2-D wavelength-scale optical microcavity structures",
"url": "https://arxiv.org/abs/physics/0607200"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "a6a4891e-a63e-42ff-89f2-d2b7ef728f0f",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}