High-Q Slot-Mode Photonic Crystal Nanobeam Cavity Biosensor With Optomechanically Enhanced Sensitivity

Erdil, Mertcan; Ozer, Yigit; Kocaman, Serdar

doi:10.1109/jstqe.2018.2880592

Cited by 12 publications

(4 citation statements)

References 42 publications

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“…A particularly suited class of cavity optomechanical system for sensing applications are optomechanical crystal cavities (OMC’s), nanostructured materials which simultaneously behave as photonic and phononic crystal cavities 13 . They can provide a combination of the sensing characteristics of PhCs and NEMS and extend further the sensing capabilities of these systems by exploiting optomechanical coupling effects, which are engineered by structural design 14 – 16 . In this work we present a novel OMC-based sensing device that addresses the issue of counting and spatially localizing submicrometric analytes.…”

Section: Introductionmentioning

confidence: 99%

Optomechanical crystals for spatial sensing of submicron sized particles

Navarro-Urriós

Kang

Xiao

et al. 2021

Sci Rep

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Optomechanical crystal cavities (OMC) have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, bacteria and viruses. In this work we demonstrate the working principle of OMCs operating under ambient conditions as a sensor of submicrometer particles by optically monitoring the frequency shift of thermally activated mechanical modes. The resonator has been specifically designed so that the cavity region supports a particular family of low modal-volume mechanical modes, commonly known as -pinch modes-. These involve the oscillation of only a couple of adjacent cavity cells that are relatively insensitive to perturbations in other parts of the resonator. The eigenfrequency of these modes decreases as the deformation is localized closer to the centre of the resonator. Thus, by identifying specific modes that undergo a frequency shift that amply exceeds the mechanical linewidth, it is possible to infer if there are particles deposited on the resonator, how many are there and their approximate position within the cavity region. OMCs have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, viruses and bacteria.

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Section: Introductionmentioning

confidence: 99%

Optomechanical crystals for spatial sensing of submicron sized particles

Navarro-Urriós

Kang

Xiao

et al. 2021

Sci Rep

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“…Approaches to force detection [13,14] based on nano-mechanical systems are well-established and have been used for measuring displacement [15]. Increasingly, it is believed that next-generation mechanical biosensors may be realized in nano-mechanical systems, because they are particularly matched in size to molecular interactions, and provide a basis for biological probes with single-molecule sensitivity [16,17]. For biosensing and medical diagnosis, or other detection scenarios, a local detection scheme might not meet the needs of practical demands.…”

Section: Introductionmentioning

confidence: 99%

Remote weak-signal measurement via bound states in optomechanical systems

Li¹,

Xiong²,

Chao³

et al. 2021

Commun. Theor. Phys.

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A scheme for remote weak-signal sensors is proposed, in which a coupled-resonator optical waveguide (CROW), as a transmitter, couples to a hybrid optomechanical cavity and an observing cavity at its two ends. Non-Markovian theory is employed to study the weak-force sensor by treating the CROW as a non-Markovian reservoir of cavity fields. The dissipationless bound states in the non-Markovian regime are conducive to remotely transmitting a signal in the CROW. Our results show that a sensor with ultrahigh sensitivity can be achieved with the assistance of bound states under certain parameter regimes.

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“…Approaches to force detection [12,13] based on nano-mechanical systems are well-established and have been used for measuring displacement [14]. Increasingly, it is believed that nextgeneration mechanical biosensor may be realized in nano-mechanical systems, because they are particularly matched in size with molecular interactions, and provide a basis for biological probes with single-molecule sensitivity [15,16]. For the biosensing and medical diagnoses or other detection scenario, the local detection scheme might not meet the needs of practical demand, it is necessary to construct waveguide-optomechanical coupling system so as to perform remote detection.…”

Section: Introductionmentioning

confidence: 99%

Remote weak signal measurement via bound states in optomechanical system

Li,

Xiong,

Chao

et al. 2020

Preprint

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A scheme for remote weak signal sensor is proposed in which a coupled resonator optical waveguide (CROW), as a transmitter, couples to a hybrid optomechanical cavity and an observing cavity, respectively. The non-Markovian theory is employed to study the weak force sensor by treating the CROW as a non-Markovian reservoir of the cavity fields, and the negative-effective-mass (NEM) oscillator is introduced to cancel the back-action noise. Under certain conditions, dissipationless bound states can be formed such that weak signal can be transferred in the CROW without dissipation. Our results show that ultrahigh sensitivity can be achieved with the assistance of the bound states under certain parameters regime.

show abstract

High-Q Slot-Mode Photonic Crystal Nanobeam Cavity Biosensor With Optomechanically Enhanced Sensitivity

Cited by 12 publications

References 42 publications

Optomechanical crystals for spatial sensing of submicron sized particles

Optomechanical crystals for spatial sensing of submicron sized particles

Remote weak-signal measurement via bound states in optomechanical systems

Remote weak signal measurement via bound states in optomechanical system

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