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   Articles with "frequency doubling" as a keyword



Efficient generation of 3.5 W laser light at 515 nm by frequency doubling a single-frequency high power DBR tapered diode laser

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recommendations! Published in 2017 at "Optics Communications"

DOI: 10.1016/j.optcom.2017.01.060

Abstract: Abstract More than 3.5 W of green light at 515 nm is generated by frequency doubling a single-frequency high power DBR tapered diode laser. The frequency doubling is performed in a cascade of PPMgLN and PPMgSLT crystals… read more here.

Keywords: high power; frequency; frequency doubling; doubling single ... See more keywords

Generation of 46 W green-light by frequency doubling of 96 W picosecond unpolarized Yb-doped fiber amplifier

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recommendations! Published in 2018 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2017.11.048

Abstract: Abstract We demonstrated a high efficiency and high average power picosecond green light source based on SHG (second harmonic generation) of an unpolarized ytterbium-doped fiber amplifier chain. Using single-pass frequency doubling in two temperature-tuned type-I… read more here.

Keywords: doped fiber; frequency; frequency doubling; fiber amplifier ... See more keywords
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Phase Matching, Strong Frequency Doubling, and Outstanding Laser-Induced Damage Threshold in the Biaxial, Quaternary Diamond-like Semiconductor Li4CdSn2S7

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recommendations! Published in 2020 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.0c03268

Abstract: The novel diamond-like Li4CdSn2S7 possesses many outstanding attributes that enable it to be a new, well-rounded front-runner among infrared (IR) nonlinear-optical materials, especially for high-in... read more here.

Keywords: frequency doubling; strong frequency; matching strong; diamond like ... See more keywords

Maximized Frequency Doubling through the Inverse Design of Nonlinear Metamaterials.

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recommendations! Published in 2022 at "ACS nano"

DOI: 10.1021/acsnano.1c09298

Abstract: The conventional process for developing an optimal design for nonlinear optical responses is based on a trial-and-error approach that is largely inefficient and does not necessarily lead to an ideal result. Deep learning can automate… read more here.

Keywords: design; deep learning; maximized frequency; design nonlinear ... See more keywords

Carbon dots-based frequency-doubling scattering probes for the ultrasensitive and highly selective determination of hemoglobin

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recommendations! Published in 2018 at "Analytical Methods"

DOI: 10.1039/c7ay02760e

Abstract: In this study, a rapid, simple, ultrasensitive, and highly selective probe for hemoglobin (HB) was developed based on fluorescent carbon dots (CDs). The frequency-doubling scattering (FDS) intensity of CDs was significantly increased by HB due… read more here.

Keywords: highly selective; hemoglobin; ultrasensitive highly; frequency doubling ... See more keywords

High efficiency frequency doubling with a passive enhancement cavity

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recommendations! Published in 2019 at "Laser Physics Letters"

DOI: 10.1088/1612-202x/aafd1c

Abstract: Highly efficient frequency doubling of a continuous-wave Yb-doped fiber laser with a passively-locked enhancement cavity is achieved. The increase in efficiency is a result of improved transverse mode matching between the fiber and doubling cavities,… read more here.

Keywords: high efficiency; efficiency; enhancement cavity; frequency doubling ... See more keywords

Non-linear frequency-doubling up-conversion in sulfide minerals enables deep-sea oxygenic photosynthesis

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recommendations! Published in 2025 at "National Science Review"

DOI: 10.1093/nsr/nwaf219

Abstract: ABSTRACT Visible light emission exceeding purely thermal radiation has been imaged at deep-sea hydrothermal vents, yet the underlying mechanisms remain unexplained. Here, we show that visible light can be produced from geothermal infrared radiation via… read more here.

Keywords: deep sea; conversion sulfide; frequency doubling; doubling conversion ... See more keywords

Frequency-Doubling Calibrated Measurement of Ultra-Wideband Optoelectronic Frequency Responses

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recommendations! Published in 2025 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2025.3610930

Abstract: A frequency-doubling calibration technique for accurate characterization of photodetector (PD) frequency response based on second-harmonic detection is proposed and experimentally demonstrated. A carrier-suppressed optical double-sideband (CS-ODSB) signal, generated by biasing a Mach-Zehnder modulator (MZM) at… read more here.

Keywords: frequency doubling; responses frequency; probe signal; response ... See more keywords

Second-Harmonic Generation of Subterahertz Gyrotron Radiation by Frequency Doubling in InP:Fe and Its Application for Magnetospectroscopy of Semiconductor Structures

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recommendations! Published in 2019 at "Semiconductors"

DOI: 10.1134/s1063782619090185

Abstract: The possibility of obtaining intense terahertz radiation due to second-order lattice nonlinearity in indium-phosphide crystals doped with iron is discussed. As a source of radiation, subterahertz gyrotrons are considered. It is shown that the efficiency… read more here.

Keywords: magnetospectroscopy semiconductor; subterahertz; frequency doubling; semiconductor structures ... See more keywords

Broadband frequency-doubling of a swept-source laser from 1550 nm to 775 nm using a fan-out crystal and application in 2kHz LiDAR ranging.

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recommendations! Published in 2025 at "Optics express"

DOI: 10.1364/oe.541976

Abstract: Swept-source lasers have achieved significant success in sensing, imaging and microscopy. A special type of these lasers is the Fourier-domain mode-locked (FDML) laser, which operates at sweep rates in the megahertz (MHz) range while maintaining… read more here.

Keywords: laser; swept source; frequency doubling; range ... See more keywords

Stable high-energy, high-repetition-rate, frequency doubling in a large aperture temperature-controlled LBO at 515  nm.

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recommendations! Published in 2020 at "Optics letters"

DOI: 10.1364/ol.383129

Abstract: We report on frequency doubling of high-energy, high-repetition-rate ns pulses from a cryogenically gas cooled, multi-slab Yb:YAG laser system, using a type-I phase-matched lithium triborate (LBO) crystal. Pulse energy of 4.3 J was extracted at… read more here.

Keywords: temperature controlled; frequency doubling; temperature; high energy ... See more keywords