Matches in SemOpenAlex for { <https://semopenalex.org/work/W2066019969> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W2066019969 abstract "Diagnostic ultrasound imaging traditionally uses piezoelectric transducers for transmission and reception of ultrasoundpulses. As the elements in the imaging array are reduced in size, however, the sensitivity will inherently decrease. Wehave developed a new, optically-based ultrasound sensor using polymer microring resonators. The device consists of a100μm-diameter polystyrene ring waveguide coupled to an input/output bus waveguide, and is fabricated by nanoimprintlithography. Acoustic pressure causes change in the waveguide cross-section dimension and strain in the polystyrenematerial, resulting in a change in the effective refractive index and a shift in resonant wavelength. The ultrasonicwaveform can be recovered from this modulation of optical output. The dynamic range and sensitivity of each microringcan be tuned appropriately by adjusting the Q during fabrication. Our experiments show a low noise-equivalent pressureon the order of 1 kPa. Sensitivity has been measured by the application of known static pressure and a calibrated 20 MHzultrasound transducer. A simple 1D array is demonstrated using wavelength multiplexing. The angular response isdetermined by sensing the optoacoustic excitation of a 49μm polyester microsphere and shows wide-angle sensitivity,making the sensors useful for beamforming. The frequency response is relatively flat between DC and 40 MHz, and canbe extended further by choice of substrate material, limited only by the electrical bandwidth of the photodetector. Thehigh sensitivity, bandwidth, and angular response make it a potentially useful sensor platform for applications inultrasound imaging, dosimetry, and non-destructive testing." @default.
- W2066019969 created "2016-06-24" @default.
- W2066019969 creator A5009677843 @default.
- W2066019969 creator A5039414872 @default.
- W2066019969 creator A5050595725 @default.
- W2066019969 creator A5052009971 @default.
- W2066019969 creator A5068654910 @default.
- W2066019969 creator A5084887081 @default.
- W2066019969 date "2008-02-07" @default.
- W2066019969 modified "2023-09-25" @default.
- W2066019969 title "High-sensitivity polymer microring resonators for broadband ultrasound detection and imaging" @default.
- W2066019969 doi "https://doi.org/10.1117/12.762447" @default.
- W2066019969 hasPublicationYear "2008" @default.
- W2066019969 type Work @default.
- W2066019969 sameAs 2066019969 @default.
- W2066019969 citedByCount "2" @default.
- W2066019969 countsByYear W20660199692021 @default.
- W2066019969 crossrefType "proceedings-article" @default.
- W2066019969 hasAuthorship W2066019969A5009677843 @default.
- W2066019969 hasAuthorship W2066019969A5039414872 @default.
- W2066019969 hasAuthorship W2066019969A5050595725 @default.
- W2066019969 hasAuthorship W2066019969A5052009971 @default.
- W2066019969 hasAuthorship W2066019969A5068654910 @default.
- W2066019969 hasAuthorship W2066019969A5084887081 @default.
- W2066019969 hasConcept C120665830 @default.
- W2066019969 hasConcept C121332964 @default.
- W2066019969 hasConcept C127413603 @default.
- W2066019969 hasConcept C192562407 @default.
- W2066019969 hasConcept C21200559 @default.
- W2066019969 hasConcept C24326235 @default.
- W2066019969 hasConcept C41008148 @default.
- W2066019969 hasConcept C49040817 @default.
- W2066019969 hasConcept C509933004 @default.
- W2066019969 hasConcept C92630104 @default.
- W2066019969 hasConcept C97126364 @default.
- W2066019969 hasConceptScore W2066019969C120665830 @default.
- W2066019969 hasConceptScore W2066019969C121332964 @default.
- W2066019969 hasConceptScore W2066019969C127413603 @default.
- W2066019969 hasConceptScore W2066019969C192562407 @default.
- W2066019969 hasConceptScore W2066019969C21200559 @default.
- W2066019969 hasConceptScore W2066019969C24326235 @default.
- W2066019969 hasConceptScore W2066019969C41008148 @default.
- W2066019969 hasConceptScore W2066019969C49040817 @default.
- W2066019969 hasConceptScore W2066019969C509933004 @default.
- W2066019969 hasConceptScore W2066019969C92630104 @default.
- W2066019969 hasConceptScore W2066019969C97126364 @default.
- W2066019969 hasLocation W20660199691 @default.
- W2066019969 hasOpenAccess W2066019969 @default.
- W2066019969 hasPrimaryLocation W20660199691 @default.
- W2066019969 hasRelatedWork W2000160237 @default.
- W2066019969 hasRelatedWork W2158011154 @default.
- W2066019969 hasRelatedWork W2367856617 @default.
- W2066019969 hasRelatedWork W2765328031 @default.
- W2066019969 hasRelatedWork W2899084033 @default.
- W2066019969 hasRelatedWork W2943870061 @default.
- W2066019969 hasRelatedWork W4256142691 @default.
- W2066019969 hasRelatedWork W1748553937 @default.
- W2066019969 hasRelatedWork W2061228215 @default.
- W2066019969 hasRelatedWork W2110767176 @default.
- W2066019969 isParatext "false" @default.
- W2066019969 isRetracted "false" @default.
- W2066019969 magId "2066019969" @default.
- W2066019969 workType "article" @default.