Search Results - "Babic, D.I."
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1
Full-Wafer Characterization of AlGaN/GaN HEMTs on Free-Standing CVD Diamond Substrates
Published in IEEE electron device letters (01-02-2010)“…We report on electrical characterization and uniformity measurements of the first conventionally processed AlGaN/GaN high electron mobility transistors (HEMTs)…”
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2
Analytic expressions for the reflection delay, penetration depth, and absorptance of quarter-wave dielectric mirrors
Published in IEEE journal of quantum electronics (01-02-1992)“…The authors analyze the operation of high-reflectivity quarter-wave (QW) dielectric mirrors at the band-stop center (Bragg) frequency, relevant for the design…”
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3
Modal reflection of quarter-wave mirrors in vertical-cavity lasers
Published in IEEE journal of quantum electronics (01-06-1993)“…Very high plane-wave reflection coefficients can be obtained with practical semiconductor quarter-wave mirrors, but for beams of finite width, the reflection…”
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4
Refractive indexes of (Al,Ga,In)As epilayers on InP for optoelectronic applications
Published in IEEE photonics technology letters (01-06-1992)“…Molecular beam epitaxy (MBE)-grown bulk and short-period superlattices of (Al,Ga,In)As epilayers lattice matched to InP were characterized by double-crystal…”
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5
Low-threshold, high-temperature pulsed operation of InGaAsP/InP vertical cavity surface emitting lasers
Published in IEEE photonics technology letters (01-11-1991)“…Room-temperature pulsed operation of InGaAsP (1.3 mu m)/InP vertical cavity surface emitting lasers has been achieved with threshold current as low as 50 mA…”
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6
High quantum efficiency and narrow absorption bandwidth of the wafer-fused resonant In/sub 0.53/Ga/sub 0.47/As photodetectors
Published in IEEE photonics technology letters (01-07-1994)“…We demonstrate greater than 90% quantum efficiency in an In/sub 0.53/Ga/sub 0.47/As photodetector with a thin (900 /spl Aring/) absorbing layer. This was…”
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7
Wafer fusion: materials issues and device results
Published in IEEE journal of selected topics in quantum electronics (01-06-1997)“…A large number of novel devices have been recently demonstrated using wafer fusion to integrate materials with different lattice constants. In many cases,…”
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8
64°C continuous-wave operation of 1.5-μm vertical-cavity laser
Published in IEEE journal of selected topics in quantum electronics (01-04-1997)Get full text
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9
Design and analysis of double-fused 1.55-μm vertical-cavity lasers
Published in IEEE journal of quantum electronics (01-08-1997)Get full text
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10
Scattering losses from dielectric apertures in vertical-cavity lasers
Published in IEEE journal of selected topics in quantum electronics (01-04-1997)“…In vertical-cavity lasers (VCLs) employing oxide or airgap apertures, the lasing mode typically travels unguided throughout most of the structure. For the…”
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11
Mode selectivity study of vertical-cavity surface-emitting lasers
Published in Applied physics letters (10-08-1998)“…Mode selectivity of an air-post index-guided vertical-cavity surface-emitting laser structure operating at 1550 nm is investigated using a full-vector…”
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12
64/spl deg/C continuous-wave operation of 1.5-/spl mu/m vertical-cavity laser
Published in IEEE journal of selected topics in quantum electronics (01-04-1997)“…We report on 64/spl deg/C continuous-wave (CW) operation of a 1.5-/spl mu/m vertical-cavity laser. This laser consists of two fused AlGaAs-GaAs mirrors with a…”
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13
Design and analysis of double-fused 1.55-/spl mu/m vertical-cavity lasers
Published in IEEE journal of quantum electronics (01-08-1997)“…Detailed design and experimental characterization of three generations of double-fused vertical-cavity lasers are described. The result of this design…”
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14
Room-temperature continuous-wave operation of 1.54-μm vertical-cavity lasers
Published in IEEE photonics technology letters (01-11-1995)“…We report on the room-temperature continuous-wave operation of vertical-cavity lasers operating at 1.54 μm. The devices use a 7 strain-compensated quantum-well…”
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15
Isotype heterojunctions with flat valence or conduction band
Published in IEEE journal of quantum electronics (01-12-1997)“…We show that isotype heterojunctions with a perfectly flat majority or minority carrier band edge can be realized by modulation doping of arbitrary continuous…”
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16
Single-mode, 1 Gb/s operation of double-fused vertical-cavity lasers at 1.54 μm
Published in IEEE photonics technology letters (01-05-1996)“…We demonstrate and characterize single-mode fiber-optic transmission using vertical-cavity lasers operating at 1.54 μm. The experiments were performed with…”
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17
Multimode fiber transmission using room temperature double-fused 1.54-μm vertical-cavity lasers
Published in IEEE photonics technology letters (01-11-1996)“…We present the very first long-wavelength vertical-cavity laser (VCL) multimode transmission experiments. These lasers are ideal for local area networks. The…”
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18
Effect of layer thickness variations on propagation delay and penetration depth of a quarter-wave distributed Bragg reflector
Published in IEEE photonics technology letters (01-11-1993)“…The authors derive an analytical formula for the change of propagation delay and phase penetration depth of a quarter-wave distributed Bragg reflector (DBR)…”
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19
Low threshold, electrically injected InGaAsP (1.3 mu m) vertical cavity lasers on GaAs substrates
Published in IEEE transactions on electron devices (01-11-1993)“…Summary form only given. Electrically injected long-wavelength vertical cavity lasers (VCLs) employing InGaAsP (1.3 mu m) active regions fused to GaAs-AlAs…”
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20
High-temperature pulsed operation of InGaAsP/InP surface emitting lasers
Published in IEEE transactions on electron devices (01-12-1991)“…Summary form only given. The observation of above-room-temperature pulsed operation of 1.3- mu m InGaAsP/InP vertical-cavity surface emitting lasers (VCSELs)…”
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