Recent Developments in Long Wavelength VCSELs Based on Localized Wafer Fusion

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In 1956, the pioneering experiment of Hanbury Brown and Twiss (HBT) on measuring the sizes of bright stars was limited by the time resolution of their detectors and their telescope size. Recent developments in single-photon avalanche diodes (SPADs) have lowered detector time resolution to under tens of picoseconds. In this work, we report the results of laboratory tests of SPAD detectors to observe the HBT effect in photon-counting mode. Using a simple laboratory setup and cutting-edge SPAD detectors, we ob

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We report record-high fundamental mode output power of 8 mW at 0 °C and 1.5 mW at 100°C achieved with wafer-fused InAlGaAs-InP/AlGaAs-GaAs 1550 nm VCSELs incorporating a re-grown tunnel junction and un-doped AlGaAs/GaAs distributed Bragg reflectors. A broad wavelength tuning range of 15 nm by current variation and wavelength setting in a spectral range of 40 nm on the same VCSEL wafer are demonstrated as well. This performance positions wafer-fused VCSELs as prime candidates for many applications in low pow

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Recent Developments in Long Wavelength VCSELs Based on Localized Wafer Fusion

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All‐Dielectric Photo‐Thermo‐Optical Metasurfaces for Thermal Landscaping at the Nanoscale

Erbium-doped Silicon Nitride Photonic Integrated Circuits and Their Applications

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Power Delivery for Cryogenic Scalable Quantum Applications: Challenges and Opportunities

Cryogenic Thermometry Based on Superconducting Microwave Resonators

QUASAR: Development of 20 picosecond resolution intensity interferometry

Broadband Noise Characterization of SiGe HBTs Down to 4K

8 mW fundamental mode output of wafer-fused VCSELs emitting in the 1550-nm band

Control of a Solid Oxide Fuel Cell System with Biased Gas Temperature Measurements

Inhibition of the Emission of Electromagnetic Modes of Photonic Crystal Cavities with a Top Mirror

Coupled Photonic-Crystal Cavities and Quantum-Wire Microlasers

Observation of Stimulated Emission and Lasing in Quantum-wire Photonic-crystal Nanocavities

Plasma diagnostics as a tool for process optimization: the case of microcrystalline silicon deposition

Free carriers in nanocrystalline titanium dioxide thin films

Laser microspot welding of copper

A CMOS 3D camera with millimetric depth resolution

Highly efficient one- and two-cascade Raman lasers based on phosphosilicate fibers

Polariton amplification in semiconductor microcavities

Synchrotron spectromicroscopy in medicine and biology

Continuous-wave dual-wavelength lasing in a two-section vertical-cavity laser