A type of laser called a VCSEL (for Vertical-Cavity Surface-Emitting Laser) is particularly good at detecting small amounts of gasses like carbon monoxide. But the laser has to be cooled to work, which limits how useful it is to small, inexpensive detectors. Now research in Applied Physics Letters has reported the first room-temperature VCSEL, paving the way to better gas detectors.

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Room-temperature vertical-cavity surface-emitting lasers at 4 μm with...

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Applied Physics Letters
02/21/2017 at 14:24. Facebook
is reported from 160 K to 400 K, which covers the tetragonal phase (160–330 K) and the pseudocubic phase (>330 K). A very low

Lattice thermal conductivity of organic-inorganic hybrid perovskite...

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Applied Physics Letters
02/16/2017 at 14:28. Facebook
, where M is a transition metal (Ta, Mo, and W) and X is a chalcogen (S, Se, and Te), have attracted continued interest owing to their rich...

Superconductivity enhancement in the S-doped Weyl semimetal candidate...

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is made possible by a thick MgO barrier that ensures negligible spin-transfer torque contributions, along with a reduction of the Ohmic...

Ultra-low switching energy and scaling in electric-field-controlled...

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oxide prepared by chemical solution deposition. It can be shown that not the amount of cycles but the duration of the applied electrical field is...

Evidence for oxygen vacancies movement during wake-up in ferroelectric...

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via the anomalous Hall effect. This all-electrical probing of the magnetization during AO-HDS enables a statistical quantification of the switching...

Electrical characterization of all-optical helicity-dependent switching...

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device, based on a radio-frequency optically pumped atomic magnetometer operating in magnetic induction tomography modality.

Electromagnetic induction imaging with a radio-frequency atomic...

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Researchers have simulated a way to get cancer drugs into cancer cells—while ignoring the rest of the body. Previous work has established that drugs encased in a nanobubble could be directed specifically towards cancer cells. Once there, though, the drugs have to get into the cell. New work in Applied Physics Letters uses computer simulations to show that a shockwave can be used to burst the...
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Molecular modeling of transmembrane delivery of paclitaxel by shock...

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Two-dimensional materials present a versatile platform for developing steep transistors due to their uniform thickness and sharp band edges. We...

2D-2D tunneling field-effect transistors using WSe2/SnSe2...

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A reliable on/off switching with an sub-kT/q subthreshold slope (38 mV/dec at room temperature) is experimentally demonstrated with using...

Sub-kT/q subthreshold slope p-metal-oxide-semiconductor field-effect...

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Identification of specific operating mechanisms becomes particularly challenging when mixed ionic-electronic conductors are used in optoelectronic...

Ionic charging by local imbalance at interfaces in hybrid lead halide...

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an emerging wide band gap semiconductor with an energy bandgap of Eg ∼ 6.5 eV, has been explored for its two dimensional nature and for its deep...

Realization of highly efficient hexagonal boron nitride neutron...

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of plastics, ceramics, and metals has existed for several decades and has revolutionized many areas of manufacturing and science. Printing of...

A 3D printed superconducting aluminium microwave cavity: Applied Physics...

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and printed with 3d printers allow the generation of waveforms with complex temporal and spatial shape. We first present three different

Laser-generated focused ultrasound for arbitrary waveforms: Applied...

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periodic architectures, or gels, have attracted the attention of many researchers due to their outstanding combination of physical properties.

Hollow carbon spheres in microwaves: Bio inspired absorbing coating:...

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Tips with radii of 25 nm and arbitrary shape are attached to conventionally shaped micro-machined cantilevers. Long-term scanning measurements...

Tailored probes for atomic force microscopy fabricated by two-photon...

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AbstractSection:The sheet carrier concentration, and of within a two-dimensional in an AlGaN/GaN were determined using a laboratory-based terahertz...

Terahertz cyclotron resonance spectroscopy of an AlGaN/GaN...

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AbstractSection:We show high-temperature in heavily Fe-doped (Ga1−x,Fex)Sb (x = 23% and 25%) by low-temperature molecular beam epitaxy. and...

High-temperature ferromagnetism in heavily Fe-doped ferromagnetic...

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a)Authors to whom correspondence should be addressed. Electronic addresses: yuanyue.liu.microman@gmail.com; pauls.stradins@nrel.gov; and...

Suppress carrier recombination by introducing defects: The case of Si...

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