English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Quasi-monolithic interferometers play a crucial role in high-precisionmeasurement experiments, including gravitational wave detection, inertialsensing, vibrometry, and seismology. Achieving high stability and accuracy insuch interferometers requires a method for bonding optical components to abaseplate. While optical contact bonding and silicate bonding are commonmethods, UV adhesives offer advantages such as controlled curing and lowgeometrical requirements for optical components and baseplates. This paperpresents a detailed construction method for a quasi-monolithic compactinterferometer based on UV-adhesive bonding. We built two types ofinterferometers using this method: a $100\,{\rm mm} \times 100\,{\rm mm}\times20\,{\rm mm}$ Mach-Zender homodyne interferometer with unequal arm lengths ofabout $100\,{\rm mm}$ for laser frequency noise monitoring, and a heterodyneinterferometer as a displacement sensing head sizing $20\,{\rm mm} \times30\,{\rm mm}\times 20\,{\rm mm}$. Our Mach-Zender interferometer achieved aphase noise level of $2\,\mu{\rm rad}\sqrt{{\rm Hz}}$ at $1\,{\rm Hz}$ and aequivalent laser frequency noise monitoring sensitivity of about $1\,{\rmkHz}/\sqrt{{\rm Hz}}$ at $1\,{\rm Hz}$. The compact heterodyne interferometersensing head showed a sensitivity level of $1\,{\rm pm}/\sqrt{{\rm Hz}}$ intranslation and $0.2\,{\rm nrad}/\sqrt{{\rm Hz}}$ in two tilts above $0.4\,{\rmHz}$. Our tests demonstrate that quasi-monolithic compact interferometers basedon UV-adhesive bonding can achieve high sensitivity levels at the pico-meterand nano-radian scales.

A construction method of the quasi-monolithic compact interferometer based on UV-adhesives bonding