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Lock-in amplifier

Known as: Phase-sensitive detector, Phase sensitive detector, Lock in amplifier 
A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment. Depending on the… 
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Related topics

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AmplifierApplication programming interfaceBrowser user interfaceCarrier wave

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2017
2017
${\Gamma}$-valley assisted intervalley scattering on monolayer and bilayer WS2 revealed by time-resolved Kerr rotation spectroscopy
We investigated the valley depolarization and carrier relaxation process of monolayer and bilayer WS2 at 10 K by using time… 
2016
2016
Toward high performance indacenodithiophene-based small-molecule organic solar cells: investigation of the effect of fused aromatic bridges on the device performance
Here we report the synthesis of a pair of D1–A-bridge–D2-bridge–A–D1 type small molecules BIT4FDT and BIT4FTT which have… 
2009
2009
Frequency-dependent viscoelasticity measurement by atomic force microscopy
We demonstrate a new technique for investigating viscoelastic properties of soft materials using the atomic force microscope. A… 
Highly Cited
2007
Highly Cited
2007
Control and Detection of Organosilane Polarization on Nanowire Field-Effect Transistors
We demonstrated control and detection of UV-induced 3-aminopropyltriethoxysilane (APTES) polarization using silicon nanowire… 
Highly Cited
2000
Highly Cited
2000
Electron-spin-resonance STM on iron atoms in silicon
Electron-spin-resonance\char21{}scanning tunneling microscopy (ESR)-(STM) of iron atoms in silicon was observed: Si(111) surfaces… 
1995
1995
Shot‐noise‐limited detection of absorbance changes induced by subpicojoule laser pulses in optical pump‐probe experiments
We describe a high‐frequency modulation and detection system capable of measuring absorbance changes ΔA on the order of 10−6 in… 
1988
1988
Lensless microwave imaging using the Hartley transform
We recently reported a method of optical phase measurement1 that involves the creation of a Hartley transform2 plane, which is… 
1984
1984
Energy resolved measurements of the phonon ionization of D and A+ centers in silicon with superconducting Al tunnel junctions
By means of phonon spectroscopy with superconducting-Al tunnel junctions as tunable phonon generators we show that the threshold… 
1980
1980
Pulse structure studies and absolute cavity length determination for a synchronously pumped picosecond dye laser
1967
1967
Dissociation of Hydrogen on Tantalum Using a Modulated Molecular Beam Technique
A molecular beam–mass spectrometric apparatus has been developed to study the kinetics of gas–solid reactions at low pressures… 
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