Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2605.28815 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916056404066304 |
|---|---|
| author | Hiller, Han S. Parakh, Pranav Aronson, Samuel H. Maeda, Kenji Lao, Di Stewart, Julian She, Zengde Wang, Jierong Xu, Xiaodong Heinz, Tony Lev, Benjamin L. |
| author_facet | Hiller, Han S. Parakh, Pranav Aronson, Samuel H. Maeda, Kenji Lao, Di Stewart, Julian She, Zengde Wang, Jierong Xu, Xiaodong Heinz, Tony Lev, Benjamin L. |
| contents | Two-dimensional van der Waals materials exhibit a variety of correlated electron phases, and optical driving offers a promising route toward manipulating them. For example, cavity-enhanced, continuous-wave (CW) Raman excitation has been suggested as a way to coherently and superradiantly populate phonons or charge density waves via material excitons. A steady-state phonon population may be sustained with sufficiently strong electron-phonon coupling to drive novel collective response. We describe an apparatus built to meet the requirements of such an experimental program: Namely, an ultrahigh-vacuum system housing a length-tunable confocal Fabry-Pérot cavity with an intracavity sample, both cryogenically cooled and stabilized against vibrations. A four-axis nanopositioner aligns the sample and supports electrical leads for sample carrier density modulation and transport measurements. Transmission through the multimode cavity enables in situ sample imaging for alignment; the sample is a transition metal dichalcogenide in this work. Operating near the confocal geometry concentrates the optical field into a localized supermode that substantially enhances light-matter coupling. This enhancement is preserved despite the millimeter-scale cavity length, which provides room for sample alignment and exchange. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_28815 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A cryogenic apparatus for coupling two-dimensional materials to a confocal multimode optical cavity Hiller, Han S. Parakh, Pranav Aronson, Samuel H. Maeda, Kenji Lao, Di Stewart, Julian She, Zengde Wang, Jierong Xu, Xiaodong Heinz, Tony Lev, Benjamin L. Quantum Physics Mesoscale and Nanoscale Physics Strongly Correlated Electrons Two-dimensional van der Waals materials exhibit a variety of correlated electron phases, and optical driving offers a promising route toward manipulating them. For example, cavity-enhanced, continuous-wave (CW) Raman excitation has been suggested as a way to coherently and superradiantly populate phonons or charge density waves via material excitons. A steady-state phonon population may be sustained with sufficiently strong electron-phonon coupling to drive novel collective response. We describe an apparatus built to meet the requirements of such an experimental program: Namely, an ultrahigh-vacuum system housing a length-tunable confocal Fabry-Pérot cavity with an intracavity sample, both cryogenically cooled and stabilized against vibrations. A four-axis nanopositioner aligns the sample and supports electrical leads for sample carrier density modulation and transport measurements. Transmission through the multimode cavity enables in situ sample imaging for alignment; the sample is a transition metal dichalcogenide in this work. Operating near the confocal geometry concentrates the optical field into a localized supermode that substantially enhances light-matter coupling. This enhancement is preserved despite the millimeter-scale cavity length, which provides room for sample alignment and exchange. |
| title | A cryogenic apparatus for coupling two-dimensional materials to a confocal multimode optical cavity |
| topic | Quantum Physics Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2605.28815 |