2021
Measurement of the Parametrized Single-Photon Response Function of a Large Area Picosecond Photodetector for Time-of-Flight PET Applications
Worstell W, Sajedi S, Bläckberg L, Feng Y, Aviles M, Butler S, Ertley C, Cremer T, Foley M, Foley C, Hamel C, Lyashenko A, Minot M, Popecki M, Rivera T, Stochaj M, Fakhri G, Sabet H. Measurement of the Parametrized Single-Photon Response Function of a Large Area Picosecond Photodetector for Time-of-Flight PET Applications. IEEE Transactions On Radiation And Plasma Medical Sciences 2021, 5: 651-661. DOI: 10.1109/trpms.2021.3065890.Peer-Reviewed Original ResearchTransit time spreadSingle-photon levelLaser pulse intensityPhotomultiplier tubeSubpicosecond laserElectronic noisePulse intensityPET applicationsLAPPDLaser excitationOptical filtersTime spreadResponse functionPulsePulse timePhotocathodeSpe valuesEntry faceLaserVoltage controlTime responsePhotodetectorsExcitationPeak amplitudeVoltageLaser particles with omnidirectional emission for cell tracking
Tang S, Dannenberg P, Liapis A, Martino N, Zhuo Y, Xiao Y, Yun S. Laser particles with omnidirectional emission for cell tracking. Light: Science & Applications 2021, 10: 23. PMID: 33495436, PMCID: PMC7835369, DOI: 10.1038/s41377-021-00466-0.Peer-Reviewed Original ResearchAngle-dependent intensityFar-field emissionMicrodisk lasersLaser particlesFrequent signal lossSignal-to-noise ratioIntensity fluctuationsOmnidirectional emissionLaser outputUnique optical probesBoundary defectsSignal-to-noiseMicrolasersTracking failureLaserScattering layerDirection-dependentGeneral solutionOptical probeSignal lossParticlesLight scatteringEmissionMicrodiskCell tracking
2019
New Detector Designs for High Resolution Brain PET
Bläckberg L, Sajedi S, Fakhri G, Sabet H. New Detector Designs for High Resolution Brain PET. 2019, 00: 1-5. DOI: 10.1109/nss/mic42101.2019.9059785.Peer-Reviewed Original ResearchLaser induced optical barriersLYSO:Ce crystalsScintillation light spreadIntrinsic resolutionDetector designCe crystalsOptical barrierBrain positron emission tomographyScintillationCrystal thicknessPhotodetector elementsTransverse resolutionDetectorPositron emission tomographyPhotodetectorsImproved positionLYSOCrystalReadoutResolutionLaserDependenceEmission tomography
2018
Light Spread Manipulation in Scintillators Using Laser Induced Optical Barriers
Bläckberg L, Moebius M, Fakhri G, Mazur E, Sabet H. Light Spread Manipulation in Scintillators Using Laser Induced Optical Barriers. IEEE Transactions On Nuclear Science 2018, 65: 2208-2215. PMID: 30905974, PMCID: PMC6424510, DOI: 10.1109/tns.2018.2809570.Peer-Reviewed Original ResearchDepth of interactionOptical barrierLYSO:Ce detectorsDepth-of-interaction informationLYSO:CeHigh-resolution PET imagesRefractive indexResolution PET imagingScintillation lightScintillation detectorDetector edgesReadout configurationDetector typesMonolithic crystalsBarrier patternsCrystal bulkCE detectorScintillationDetectorLYSOLiOBPixel arrayPET imagingLaserLight transport simulation
2017
Simulation Study of Partially Laser-Processed LYSO:Ce with Single-Side Readout
Bläckberg L, Fakhri G, Sabet H. Simulation Study of Partially Laser-Processed LYSO:Ce with Single-Side Readout. 2017, 00: 1-4. DOI: 10.1109/nssmic.2017.8532855.Peer-Reviewed Original ResearchDual time-resolved temperature-jump fluorescence and infrared spectroscopy for the study of fast protein dynamics
Davis CM, Reddish MJ, Dyer RB. Dual time-resolved temperature-jump fluorescence and infrared spectroscopy for the study of fast protein dynamics. Spectrochimica Acta Part A Molecular And Biomolecular Spectroscopy 2017, 178: 185-191. PMID: 28189834, PMCID: PMC5346054, DOI: 10.1016/j.saa.2017.01.069.Peer-Reviewed Original ResearchConceptsQuantum cascade lasersTime-resolved IRYAG laserTunable quantum cascade laserFluorescence spectroscopyProtein dynamicsAbsorbance detection limitCascade lasersSapphire laserComplex folding mechanismsLaserIR frequenciesOverall fluorescence intensityFluorescence spectrometerSpectroscopyIR spectrometerFluorescence measurementsFluorescence sensitivityHigh sensitivityT-jumpSpectrometerFast protein dynamicsFolding mechanismPowerful techniqueFluorescence
2016
GATE Simulation of a High-Performance Stationary SPECT System for Cardiac Imaging
Uzun-Özşahin D, Bläckberg L, Moghadam N, Fakhri G, Sabet H. GATE Simulation of a High-Performance Stationary SPECT System for Cardiac Imaging. 2016, 1-3. DOI: 10.1109/nssmic.2016.8069814.Peer-Reviewed Original ResearchPoint spread functionDerenzo-like phantomGATE simulated resultsGATE simulation studiesSystem spatial resolutionStationary SPECT systemGATE simulationsSPECT systemMultiple simultaneous viewsCardiac imaging applicationsActive rodsSpread functionSpatial resolutionImaging applicationsImage reconstructionGateCorrection techniqueFWHMContouring systemPhantomResolutionLaserCardiac imagingScintillator-Based Photon Counting Detector: Is it Feasible?
Bläckberg L, Moebius M, Moghadam N, Uzun-Ozsahin D, Mazur E, Fakhri G, Sabet H. Scintillator-Based Photon Counting Detector: Is it Feasible? 2016, 1-5. DOI: 10.1109/nssmic.2016.8069382.Peer-Reviewed Original ResearchLaser induced optical barriersPhoton counting detectorsScintillator arrayOptical barrierBarrier refractive indexRefractive indexApplication Specific Integrated CircuitFast decay timeHigh light outputBuilt-in photodiodeScintillation lightLYSO crystalsCounting detectorsScintillator pixelsEnergy windowAtomic numberScintillationDecay timeLight outputLaserDetectorTransparent crystalsCrystalIntegrated CircuitsLaser cutting techniqueDestruction‐and‐diffraction by X‐ray free‐electron laser
Wang J. Destruction‐and‐diffraction by X‐ray free‐electron laser. Protein Science 2016, 25: 1585-1592. PMID: 27262052, PMCID: PMC5338243, DOI: 10.1002/pro.2959.Peer-Reviewed Original ResearchConceptsX-ray free-electron lasersFree-electron laserSingle femtosecond pulseAtomic scattering factorsFemtosecond pulsesRecent theoretical studiesScattering factorsSuch pulsesElectronic processesDifferent atomsCrystallographic data collectionRadiation damageSingle pulseX-rayPulsesLaserSuch crystalsTheoretical studyCrystalsDiffractionMacromolecular crystalsFemtosecondExperimental evidenceAtomsRadiation
2015
Low spatial coherence electrically pumped semiconductor laser for speckle-free full-field imaging
Redding B, Cerjan A, Huang X, Lee ML, Stone AD, Choma MA, Cao H. Low spatial coherence electrically pumped semiconductor laser for speckle-free full-field imaging. Proceedings Of The National Academy Of Sciences Of The United States Of America 2015, 112: 1304-1309. PMID: 25605946, PMCID: PMC4321308, DOI: 10.1073/pnas.1419672112.Peer-Reviewed Original ResearchConceptsLow spatial coherenceFull-field imagingLight-emitting diodesSpatial coherenceSemiconductor lasersLaser sourceLight sourceConventional laser sourcesThermal light sourceIncoherent light sourceHigh spectral radianceIndependent spatial modesCavity laserLaser resonatorCoherent artifactsSample illuminationSpatial modesProjection applicationsIllumination sourceLaserEmitting diodesOrders of magnitudeSpectral radianceThermal sourceHigh power
2012
Speckle-free laser imaging using random laser illumination
Redding B, Choma MA, Cao H. Speckle-free laser imaging using random laser illumination. Nature Photonics 2012, 6: 355-359. PMID: 24570762, PMCID: PMC3932313, DOI: 10.1038/nphoton.2012.90.Peer-Reviewed Original ResearchRandom lasersSuperluminescent diodeCoherent artifactsLaser illuminationImaging applicationsSpatial coherenceThermal light sourceIntense laser illuminationHigh spatial coherenceLow spatial coherenceBright light-emitting diodesLight-emitting diodesOptical scatteringCoherent illuminationLight sourceLaserIllumination sourceLaser imagingDiodesIlluminationCoherenceScatteringBrightnessSpeckleSource
2005
Coherent optical control of electronic excitations in functionalized semiconductor nanostructures
Rego L, Abuabara S, Batista V. Coherent optical control of electronic excitations in functionalized semiconductor nanostructures. Quantum Information And Computation 2005, 5: 318-334. DOI: 10.26421/qic5.45-4.Peer-Reviewed Original ResearchSemiconductor nanostructuresCoherent optical controlCoherent quantum stateSpatial Rabi oscillationsElectro-optic devicesAvailable semiconductor materialsBasic model componentsRabi oscillationsCoherent excitationOptical controlQuantum statesElectronic excitationPresented computational methodVacuum conditionsSemiconductor materialsElectron-hole transferNanostructuresAnatase nanostructuresExcitationComputational methodsQuantumLaserModel componentsCatechol moleculesOscillations
2002
High-average-power 2-kHz laser for generation of ultrashort x-ray pulses.
Jiang Y, Lee T, Li W, Ketwaroo G, Rose-Petruck C. High-average-power 2-kHz laser for generation of ultrashort x-ray pulses. Optics Letters 2002, 27: 963-5. PMID: 18026338, DOI: 10.1364/ol.27.000963.Peer-Reviewed Original ResearchX-ray pulsesUltrafast X-ray pulsesHigh-contrast laser pulsesUltrashort x-ray pulsesAverage X-ray fluxHigh-contrast pulsesChirped-pulse amplificationX-ray fluxLaser pulsesLaser sectionLaser systemPhoton energyRepetition rateSpectral rangePulse compressionTens of hoursPulsesKeVHe atmospherePulse cleaningPower 2MicrojoulesLaserSectionsEnergy
2001
Ultrafast lasers and x-ray absorption spectroscopy in chemical research: observing molecular structures of solvated molecules
Rose-Petruck C, Jiang Y, Li W, Cao G, Lee T, Ketwaroo G, Rose-Petruck C. Ultrafast lasers and x-ray absorption spectroscopy in chemical research: observing molecular structures of solvated molecules. 2001, tud3. DOI: 10.1364/hfsw.2001.tud3.Peer-Reviewed Original Research
1999
Determination of molecular masses of proteins in solution: Implementation of an HPLC size exclusion chromatography and laser light scattering service in a core laboratory.
Folta-Stogniew E, Williams KR. Determination of molecular masses of proteins in solution: Implementation of an HPLC size exclusion chromatography and laser light scattering service in a core laboratory. Journal Of Biomolecular Techniques 1999, 10: 51-63. PMID: 19499008, PMCID: PMC2291588.Peer-Reviewed Original ResearchRefractive indexLaser lightSEC/LSEmission spectraAbsorption spectraLight scatteringSize exclusion chromatographyInstrument configurationLS experimentsProtein oligomerizationNative proteinRI detectorMolecular massNonglobular shapeSpectraMolecular weightProteinHPLC size exclusion chromatographyMW determinationLaserLightScatteringExclusion chromatographyProtein standardsDetector
1988
New Microspot Micromanipulator for Carbon Dioxide Laser Surgery in Otolaryngology: Early Clinical Results
Shapshay S, Wallace R, Kveton J, Hybels R, Bohigian R, Setzer S. New Microspot Micromanipulator for Carbon Dioxide Laser Surgery in Otolaryngology: Early Clinical Results. JAMA Otolaryngology - Head & Neck Surgery 1988, 114: 1012-1015. PMID: 3408566, DOI: 10.1001/archotol.1988.01860210078020.Peer-Reviewed Original ResearchConceptsSmaller laser spot sizeLaser spot sizeAblation of tissueInfrared opticsSpot sizeLaser surgeryFiberoptic imageNew micromanipulatorCarbon dioxide laser surgeryDefocus controlConventional micromanipulatorsEarly clinical resultsNew instrumentBenign laryngeal diseaseOpticsLaserDysplastic changesClinical resultsTissue traumaPower densityVocal cordsLaryngeal diseaseMicromanipulatorPatientsSurgeryUse of a Microspot Micromanipulator for CO2 Laser Surgery in Otolaryncology
Shapshay S, Wallace R, Kveton J, Hybels R, Bohigian R, Setzer S. Use of a Microspot Micromanipulator for CO2 Laser Surgery in Otolaryncology. 1988, 411-411. DOI: 10.1007/978-3-642-72870-9_107.Peer-Reviewed Original Research
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