Temperature-Compensated Solution Concentration Measurements Using Photonic Crystal Fiber-Tip Sensors

Cano-Velázquez, Mildred S.; Hendriks, Arthur L.; Picelli, Luca; van Veldhoven, Rene P. J.; Fiore, Andrea

doi:10.3390/s23187703

Cited by 2 publications

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The transfer to the fiber facet is achieved using a simple and scalable transfer technique that has previously been demonstrated in our group 31,39,40 . This process is similar to our previous work, however, this time, it is performed on a nano-optomechanical structure, where the proximity between the two suspended InP membranes makes the transfer more critical.…”

Section: Fabrication and Assemblymentioning

confidence: 99%

Nano-optomechanical fiber-tip sensing

Hendriks,

Picelli,

van Veldhoven

et al. 2024

npj Nanophoton.

Self Cite

View full text Add to dashboard Cite

Nano-optomechanical sensors exploit light confinement at the nanoscale to enable very precise measurements of displacement, force, acceleration, and mass. Their application is hampered by the complex optical set-ups or packaging schemes required to couple light to and from the nano-optomechanical resonator. In this work, we present a fiber-coupled nano-optomechanical sensor that requires no coupling optics. This is achieved by directly placing a nano-optomechanical structure, a double membrane photonic crystal (DM-PhC), on the facet of a fiber, using a simple and scalable wafer-to-fiber transfer method. The device is probed in reflection and has a resonance at telecom wavelengths with a relatively broad spectral width of 3–10 nm, which is advantageous for a simple read-out and achieves a displacement imprecision of $$10\,{{\rm{fm}}}/{\sqrt{{\rm{Hz}}}}$$ 10 fm / Hz . Using resonant driving and a ringdown measurement, we can induce and monitor mechanical oscillations with an nm-scale amplitude via the fiber, which allows for tracking the mechanical resonant frequency and the mechanical linewidth with imprecisions of 79 and 12 Hz, respectively, at integration times of 4.5 s. We further demonstrate the application of this fiber-tip sensor to the measurement of pressure, using the effect of collisional damping on the mechanical linewidth, leading to the imprecision of $$9\times {10}^{-4}\,{\rm{mbar}}$$ 9 × 10 − 4 mbar with an integration time of 290 s. This combination of optomechanics and fiber-tip sensing may open the way to a new generation of fiber sensors with unprecedented functionality, ultrasmall footprint, and low-cost readout.

show abstract

Section: Fabrication and Assemblymentioning

confidence: 99%

Nano-optomechanical fiber-tip sensing

Hendriks,

Picelli,

van Veldhoven

et al. 2024

npj Nanophoton.

Self Cite

View full text Add to dashboard Cite

show abstract

Detecting single nanoparticles using fiber-tip nanophotonics

Hendriks,

Rabelink,

Dolci

et al. 2024

Optica

View full text Add to dashboard Cite

Sensing nano-objects, from nanoparticles to molecules, has become a crucial need in environmental monitoring, medical diagnostics, and drug development. Detection of single particles and molecules is highly desirable, as it provides specific information on size, dynamics, and interactions. Current nanophotonic implementations rely on complex optical readout schemes, limiting their application in the field. Here we demonstrate a nanophotonic fiber-tip sensor with a compact sensor footprint and a simple readout scheme. We leverage advanced design methods to simultaneously achieve a small mode volume V m =0.74(λ/n)3, narrow linewidth Δλ=0.4nm, and a large modulation ΔR≈20% in reflection from the fiber. This unique combination of properties opens the way to sensing weak nanoscale perturbations in the vicinity of the fiber tip. In particular, we experimentally demonstrate the real-time detection of single 50 nm nanoparticles. This opens a route towards real-time sensing of single nanoparticles, and potentially single molecules, in environmental monitoring and diagnostics.

show abstract

Temperature-Compensated Solution Concentration Measurements Using Photonic Crystal Fiber-Tip Sensors

Cited by 2 publications

References 22 publications

Nano-optomechanical fiber-tip sensing

Nano-optomechanical fiber-tip sensing

Detecting single nanoparticles using fiber-tip nanophotonics

Contact Info

Product

Resources

About