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Breakthrough in solar thermoelectric generation: organic radical photothermal cocrystals lead the way

Researchers have developed a new material, coronene-Br2 NDA cocrystal, which converts solar heat into electricity with an exceptional photothermal conversion efficiency of 67.2% under 808 nm irradiation. The material is integrated into a thermoelectric generator to achieve high-performance solar-thermoelectric energy harvesting.

SourceScience China Press·JournalNational Science Review·TypeExperimental study·DateApr 21, 2025

Ultrafast multivalley optical switching in germanium for high-speed computing and communications

Researchers demonstrate ultrafast transparency switching across multiple wavelengths using single laser excitation in germanium, opening possibilities for advanced optical technologies. The study highlights the potential of Ge as a key material for ultrafast optical switching with promising applications in high-speed data transmission ...

SourceWaseda University·JournalPhysical Review Applied·TypeExperimental study·DateApr 16, 2025

Ground-breaking accelerated discovery research unveils 21 novel materials for advanced organic solid-state laser technology: a global collaboration success story

Researchers from six teams in five labs worldwide used self-driving labs to discover 21 top-performing OSL gain candidates, accelerating the discovery process by months. The decentralized workflow enabled rapid replication of experimental findings and democratized the discovery process.

SourceUniversity of Toronto·JournalScience·DateMay 16, 2024

Old crystal, new story for enhancing deep ultraviolet laser performance

A team of researchers from the Chinese Academy of Sciences has successfully developed a high-power, narrow-linewidth solid-state deep ultraviolet laser at 193 nm using LBO crystals. The generated DUV laser exhibits an average power of 60 mW and a linewidth of approximately 640 MHz, setting new benchmarks in efficiency values.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·TypeExperimental study·DateApr 1, 2024

A new chapter for all-attosecond spectroscopy

A team of researchers from the Max Born Institute has demonstrated a new approach to all-attosecond pump-probe spectroscopy using a compact intense attosecond source. This enables the investigation of extremely fast electron dynamics in the attosecond regime, which is not accessible by current attosecond techniques.

SourceMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI)·JournalScience Advances·TypeExperimental study·DateFeb 22, 2024

Ultra-low threshold continuous-wave quantum dot mini-BIC lasers

The researchers successfully achieve ultra-low single mode lasing threshold of 17 μW with a small size of ~2.5×2.5 μm² and precise wavelength engineering capabilities. The mini-BIC lasers offer a perspective light source for future PICs aiming at high-capacity optical communications, sensing and quantum information.

Deep-space optical communication demonstration project forges ahead

The NASA Deep Space Optical Communications project has successfully demonstrated a new type of laser system that can transmit large amounts of data, including high-definition images and video, through space. The system uses a combination of flight and ground-based lasers to establish an optical link between spacecraft and Earth.

SourceOptica·DateDec 8, 2022

Researchers realize unconventional coherent control of solid-state spin qubits

Researchers have developed an unconventional method for controlling solid-state spin qubits using anti-Strokes (AS) excitation, which reduces the energy requirement compared to conventional Strokes excitation. This breakthrough enables improved quantum information processing and high-sensitivity quantum sensing capabilities.

SourceUniversity of Science and Technology of China·JournalNature Communications·DateJun 9, 2021

Ultrafast fiber laser produces record high power

The research team developed a new ultrafast fiber laser that produces an average power of over 10 kW without significant degradation in beam quality. This technology paves the way for industrial-scale materials processing and visionary applications such as space debris removal.

SourceOptica·DateOct 12, 2020

Skoltech research puts exciton-polaritons in their place with new artificial laser-built lattices

Researchers at Skoltech have developed a method to synthesize artificial solid-state crystal structures using only laser light, creating arbitrarily shaped and reprogrammable lattices for exciton-polaritons. This allows for the study of dissipative many-body quantum physics in a unique lattice environment.

The cure for chaotic lasers? More chaos, of course

A Yale-led research team has developed a new approach to stabilize high-power lasers by introducing chaotic cavities, reducing laser instabilities and promoting stable beam profiles. The innovative method is scalable to increasing power levels and can be applied to various types of high-power lasers.

SourceYale University·JournalScience·DateAug 16, 2018

Core solutions reach optimally extreme light pulses

Researchers at ICFO and MPL create a hollow-core photonic crystal fiber system producing single-cycle IR pulses at an unprecedented repetition rate of 160 kHz. This enables applications such as real-time electron motions observation in single molecules, opening a window to watching subatomic processes during chemical reactions.

SourceOptica·DateSep 11, 2017

UCSB researchers, led by Shuji Nakamura, achieve major breakthrough in laser diode development

Researchers at UCSB's Solid State Lighting and Display Center have achieved lasing operation in nonpolar gallium nitride semiconductors, demonstrating the world's first nonpolar blue-violet laser diodes. These devices have numerous commercial applications, including high-density optical data storage for high definition displays and video.