Laser World of Photonics 2025 June 24–27, 2025   Messe München, Munich, Germany you have been invited by： RealLight, Booth Hall A2.607

Microchip lasers, with sub-nanosecond pulses, high peak power, and multi-wavelength capabilities, have become ideal light sources for photoacoustic imaging. Their high-resolution imaging clearly reveals microvasculature and tumors, while contact-free technology expands clinical applications in ophthalmology and neurology.

Diode Lasers demonstrate unique value in oral tissue treatment with precise cutting, hemostasis, and antibacterial capabilities. Their minimally invasive features align with comfortable treatment trends, showing wide applications in root canal therapy and gingival surgery, with promising future prospects.

The 785nm laser, as the core light source for handheld Raman spectrometers, offers superior sensitivity, fluorescence suppression, and eye safety. Compared to 532nm and 1064nm lasers, this wavelength optimally balances fluorescence reduction and signal intensity, enabling on-site rapid detection of drugs, explosives, etc. Advances in semiconductor laser technology ensure portability with lab-grade accuracy, while AI integration enhances performance, demonstrating broad potential in public safety and pharmaceutical quality control.

Microchip lasers, with their sub-nanosecond pulses, high energy density, and wavelength tunability, serve as an ideal excitation source for photoacoustic imaging (PAI). Their ultrashort pulse width meets thermal/stress confinement requirements, enabling micron-scale resolution and centimeter-level penetration depth. Breakthrough applications include tumor angiogenesis imaging, blood oxygen monitoring, and breast cancer diagnosis. Additionally, their non-contact detection capability offers unique advantages for clinical use in ophthalmology and neurology. As laser technology advances, microchip lasers will further drive the miniaturization and clinical adoption of PAI systems.

This paper systematically elaborates on the innovative applications of laser technology in photoacoustic and fluorescence imaging. It highlights RealLight's sub-nanosecond microchip laser, which demonstrates unique advantages in biomedical imaging and materials science due to its excellent pulse stability (microjoule-level) and multi-wavelength output capabilities (532nm-213nm). In photoacoustic imaging, it enables non-invasive, high-resolution tissue imaging, while in fluorescence imaging, it serves as a reliable light source for two-photon microscopy. Research shows that such compact lasers not only advance imaging technologies but also play crucial roles in neuroscience research, drug delivery monitoring, and material defect detection, demonstrating broad potential for interdisciplinary applications.