Electron and hole impact ionization coefficients in GaAs-Al<i>x</i>Ga1−<i>x</i>As superlattices

F-Y. Juang, Utpal Das, Y. Nashimoto, +1

Applied Physics Letters

SemiconductorsSemiconductor TechnologyElectrical EngineeringHole ConfinementEngineering +8

Nonlinear effects in coplanar GaAs/InGaAs strained-layer superlattice directional couplers

Utpal Das, Yi Chen, P. Bhattacharya

Applied Physics Letters

SemiconductorsPhotonicsCategoryquantum ElectronicsOptical MaterialsEngineering +11

Investigation of the interface region produced by molecular beam epitaxial regrowth

Dipankar Biswas, Paul R. Berger, Utpal Das, +2

Journal of Electronic Materials

Materials ScienceEngineeringElectron-beam LithographyMicroscopyApplied Physics +5

Material properties and optical guiding in InGaAs-GaAs strained layer superlattices—a brief review

P. Bhattacharya, Utpal Das, Feng-Yuh Juang, +2

Solid-State Electronics

Materials ScienceSemiconductorsOptical MaterialsMaterial PropertiesEngineering +7

Experimental Study of the Effects of Environmental and Fog Condensation Nuclei Parameters on the Rate of Fog Formation and Dissipation Using a New Laboratory Scale Fog Generation Facility

Vivek Pratap Singh, Tarun Gupta, S. N. Tripathi, +2

Aerosol and Air Quality Research

Fog FormationEngineeringAerosol FormationAtmospheric ScienceFog Condensation Nuclei +10

Variation of refractive index in strained In<i>x</i>Ga1−<i>x</i>As-GaAs heterostructures

Utpal Das, P. Bhattacharya

Journal of Applied Physics

SemiconductorsPhotonicsWide-bandgap SemiconductorOptical MaterialsEngineering +11

Use of triethylindium and bisphosphinoethane for the growth on InP by chemical beam epitaxy

Albert Chin, Paul Martin, Utpal Das, +2

Applied Physics Letters

Materials EngineeringMaterials ScienceSemiconductorsGroup V SourceEngineering +12

Enhanced persistence of fog under illumination for carbon nanotube fog condensation nuclei

Saumyabrata Banerjee, S. N. Tripathi, Utpal Das, +6

Journal of Applied Physics

Sodium ChlorideCarbon SequestrationEnhanced PersistenceEngineeringGlassy Carbon +10

Low-loss optical waveguides made with molecular beam epitaxial In0.012Ga0.988As and In0.2Ga0.8As-GaAs superlattices

Utpal Das, P. Bhattacharya, Sunanda Dhar

Applied Physics Letters

PhotonicsOptical MaterialsAttenuation ConstantsEngineeringPhysics +13

Growth and properties of In0.52Al0.48As/In0.53Ga0.47As, GaAS: In and InGaAs/GaAs multilayers

Feng-Yuh Juang, Won-Pyo Hong, Paul R. Berger, +3

Journal of Crystal Growth

Ingaas/gaas MultilayersElectrical EngineeringEngineeringApplied PhysicsCondensed Matter Physics +3