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German researchers have developed a method for controlling and manipulating optical signals by embedding liquid crystal layers into waveguides created by direct laser writing. This work has produced devices capable of electro-optic control of polarization, which may open up possibilities for chip based devices and complex photonic circuits based on femtosecond write waveguides.Researcher Alexandro...
Recently, according to the journal Nature Nanotechnology, a team from the California Institute of Technology reported that they have constructed a metasurface covered with micro adjustable antennas that can reflect incident light beams: one beam of light enters and multiple beams of light exit, each with a different frequency and propagating in a different direction. This is a new method for proce...
Recently, laser cleaning equipment manufacturer Laser Photonics Corporation (LPC) announced its ambitious 2025 growth strategy, emphasizing innovation, strategic investment, and market expansion. LPC Executive Vice President John Armstrong stated:With a solid foundation laid in 2024, we will enter 2025 with clear momentum and a firm focus on growth. The progress we made last year - strengthening...
As a promising imaging modality that combines the high spatial resolution of optical imaging and the deep tissue penetration ability of ultrasound imaging, photoacoustic microscopy (PAM) has attracted a lot of attention in the field of biomedical research, and has a wide range of applications in many fields, such as tumor detection, dermatology, and vascular morphology assessment. Depending on the...
1. Research backgroundDirected energy deposition (DED), as an efficient and economical technology in the field of additive manufacturing (AM), is widely used in the manufacturing of metal materials. However, its high heating and cooling rates, as well as significant temperature gradients, often lead to rapid solidification, forming cross layer columnar grains and internal defects, seriously affect...