Direct laser-written optomechanical double membranes in an optical microcavity
Abstract
Optomechanical membrane-in-the-middle systems that comprise several coupled compliant membranes offer enhanced optomechanical coupling and collective dynamics. Recent realizations were fundamentally restricted to two membranes and to limited structural optimization of the involved membranes due to their intricate fabrication and experimental integration. Here, we present a fiber-based Fabry-Perot microcavity incorporating monolithically integrated double-membrane resonators fabricated by 3D direct laser writing. We realize controllable mechanical mode hybridization of membranes with coupling rates of up to Jmech/2π= 0.16 MHz, exceeding the mechanical linewidths. We demonstrate enhanced collective optomechanical coupling of the membrane stack's breathing mode, reaching collective coupling strengths of up to gcol(−)/2π≈ 0.1 MHz. Our transfer-matrix calculations predict further substantial enhancements with realistic reductions of membrane thickness and spacing, and a larger number of membranes. Our results establish direct laser-written membrane arrays as a scalable platform for multimode cavity optomechanics, combining tunable mechanical interactions, enhanced collective optomechanical coupling, and scalability towards larger mechanically coupled resonator systems.
Related
- Optical multistability in a compact microcavity enabled by near-exceptional coupling
- Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
- Local optical feasibility maps for compound lens optimization under direct modulation transfer function constraints
- Direct optical thermometry in semiconductors
- Towards noble gas quantum optical magnetometry using direct ultraviolet detection
BibTeX
@misc{tenbrake2026direct,
title = {{Direct laser-written optomechanical double membranes in an optical microcavity}},
author = {Lukas Tenbrake and Daniel Stachanow and Florian Giefer and Jana Blechmann and Wolfgang Alt and Sebastian Hofferberth and Hannes Pfeifer},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2609.01145},
eprint = {2609.01145},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.01145},
}
RIS
TY - UNPB
TI - Direct laser-written optomechanical double membranes in an optical microcavity
AU - Lukas Tenbrake
AU - Daniel Stachanow
AU - Florian Giefer
AU - Jana Blechmann
AU - Wolfgang Alt
AU - Sebastian Hofferberth
AU - Hannes Pfeifer
PY - 2026
DA - 2026/10/28
PB - arXiv
DO - 10.48550/arxiv.2609.01145
UR - https://arxiv.org/abs/2609.01145
AB - Optomechanical membrane-in-the-middle systems that comprise several coupled compliant membranes offer enhanced optomechanical coupling and collective dynamics. Recent realizations were fundamentally restricted to two membranes and to limited structural optimization of the involved membranes due to their intricate fabrication and experimental integration. Here, we present a fiber-based Fabry-Perot microcavity incorporating monolithically integrated double-membrane resonators fabricated by 3D direct laser writing. We realize controllable mechanical mode hybridization of membranes with coupling rates of up to J_mech/2π= 0.16 MHz, exceeding the mechanical linewidths. We demonstrate enhanced collective optomechanical coupling of the membrane stack's breathing mode, reaching collective coupling strengths of up to g_col^(−)/2π≈ 0.1 MHz. Our transfer-matrix calculations predict further substantial enhancements with realistic reductions of membrane thickness and spacing, and a larger number of membranes. Our results establish direct laser-written membrane arrays as a scalable platform for multimode cavity optomechanics, combining tunable mechanical interactions, enhanced collective optomechanical coupling, and scalability towards larger mechanically coupled resonator systems.
ER -