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Photodetector

Ted Haensch  Sharing His Unique Perspective on Lasers

Ted Haensch Sharing His Unique Perspective on Lasers

Interview
if two frequency combs of slightly different pulse repetition frequencies are
used. A single fast photodetector reveals
radio frequency beat notes between corresponding lines from each comb, and
there is no need for any moving parts.
To achieve similar recording…

Vitara CEP Stabilizer

Vitara CEP Stabilizer

…optical spectrum. The red end of this spectrum is frequency-doubled and combined with the green end of this same broad spectrum. A fast photodetector senses the resultant beat frequency and after suitable processing, this signal is used to control the fast and slow actuators inside the…

2016-Ultrafast-Laser-Systems-Catalog.pdf

2016-Ultrafast-Laser-Systems-Catalog.pdf

…spectrum.The red end
of this spectrum is frequency-doubled and combined
with the green end of this same broad spectrum. A fast
photodetector senses the resultant beat frequency
and at wo, the carrier envelope offset frequency. Our
feeback electronics control the fast and…

COHR RLScatalog 2017revA web.pdf

COHR RLScatalog 2017revA web.pdf

…spectrum.The red end
of this spectrum is frequency-doubled and combined
with the green end of this same broad spectrum. A fast
photodetector senses the resultant beat frequency
and at wo, the carrier envelope offset frequency. Our
feeback electronics control the fast and…

EU Photonics Talk Nobel Laureate Haensch.pdf

EU Photonics Talk Nobel Laureate Haensch.pdf

…Weinheim Optik&Photonik 1/2017
if two frequency combs of slightly different pulse repetition frequencies are
used. A single fast photodetector reveals
radio frequency beat notes between corresponding lines from each comb, and
there is no need for any moving parts.
To…

LIT Lasers-LED NO2 Spectral-Brightness 1014.pdf

LIT Lasers-LED NO2 Spectral-Brightness 1014.pdf

…spectrum and a broad emission spectrum that is at a longer wavelength, i.e., Stokes
shifted. A longpass cut-off filter makes sure that the photodetector efficiently detects fluorescence but is blind to any scattered light at shorter
wavelengths an LED has a broad
Fortunately, because…

LIT Lasers-LED NO3-Cost-Issues 1114.pdf

LIT Lasers-LED NO3-Cost-Issues 1114.pdf

…larger aperture optics or parabolic mirrors to collect as much of the weak fluorescence as possible. More importantly, it may also mean using a photodetector with higher gain and/or lower noise. For example, a particular instrument may only require a zero-gain photodiode or low-cost photodiode array…

Coherent Whitepaper - Astrella Tisch Sphere FINAL.pdf

Coherent Whitepaper - Astrella Tisch Sphere FINAL.pdf

…measurement methods, the d-scan device uses optical effects to
convert phase information into an amplitude signal that can be sensed on a photodetector
array. The d-scan modules tailored for an HCF system comprises a chirped mirror compressor
including a pair of thin glass wedges on…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…output is frequency-doubled and locked to a Dopplerfree iodine absorption line. Here the laser head,
doubling crystal, iodine (I2) cell and photodetectors are
all seamlessly and conveniently incorporated inside a
single box that maximized system stability [6]. A typical
absolute…

Laser Focus World - June 2018

Laser Focus World - June 2018

…peak of the fluorophore excitation spectrum and use a cut-off or bandpass filtertoblockscatteredlaserlightfromreachingthe camera or photodetector, which then only detects the Stokes-shifted fluorescence emission. The laser has a much sharper spectrum (that is, spectral width and…

Lasers for Optogenetics and Multimodal Microscopy

Lasers for Optogenetics and Multimodal Microscopy

…water interfaces. To generate a signal in the visible spectrum, enabling
detection by photomultiplier tubes
(PMTs) and silicon photodetectors, THG microscopy requires long
excitation wavelengths (1.2 - 1.5 µm).
Acoupleofotherlabel-freetechniques
are based on Raman scattering…

CaseStudy Univ Regensburg final  Oct2015.pdf

CaseStudy Univ Regensburg final Oct2015.pdf

…to the 22nd harmonic at 675
THz, before the signal strength naturally decays and
also surpasses the wavelength range of the
photodetectors.
Two aspects of this comb of frequencies make it a
useful and unique tool in its own right to perform other
science on the…

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