In recent years, nanosecond lasers have gained widespread application across multiple fields- including the treatment of pigmentary disorders, tattoo removal and skin rejuvenation -due to their exceptional characteristics such as high precision, high operational efficiency, and rapid recovery. Lamp-pumped laser systems have long held an irreplaceable dominant position in clinical settings, owing to their stable light output characteristics and sustainable advantages including relatively low production, maintenance, and operational costs.

The pulse duration generated by nanosecond lamp-pumped lasers closely approximates the thermal relaxation time of many target tissues. Its mechanism of action primarily relies on the theory of selective photothermal effects. Within nanoseconds, when laser energy is absorbed by the target substrate (such as melanin), it generates significant thermal effects, leading to vaporization or mechanical rupture, thereby achieving removal.

Lamp-pumped nanosecond lasers, with their high energy and short pulse characteristics, enable precise targeting of specific tissues while minimizing damage to surrounding healthy tissues. This capability makes them indispensable in the following applications.

♦ 1. Treatment of Pigmented Skin Disorders: Utilizing the Q-switched Nd:YAG laser (1064nm/532nm) to effectively shatter melanin granules, enabling their elimination through metabolic processes, thereby achieving the therapeutic effect of lightening pigmentation.

♦ 2. Tattoo Removal: Nanosecond lasers are currently one of the mainstream methods for tattoo removal. Different wavelengths of nanosecond lasers can specifically target and break down pigment particles of varying colors. For instance, the 1064nm wavelength is effective for black and blue inks, while the 532nm wavelength is better suited for red and green inks. The laser energy shatters the tattoo pigment into microscopic particles, accelerating their clearance by the immune system.

♦ 3. Improvement of Vascular Lesions: Nanosecond lasers at specific wavelengths (such as 532nm and 585nm) are highly absorbed by hemoglobin in the blood, making them effective for treating vascular skin conditions like telangiectasia and port-wine stains. The laser energy seals off abnormal blood vessels, improving skin tone and texture.

Nanosecond laser

Nanosecond laser technology is mature, with stable equipment and a broad range of applications. However, during treatment, thermal diffusion may cause minor damage to surrounding tissues, potentially leading to prolonged recover periods or risks of hyperpigmentation. Picosecond lasers reduce pulse width to the picosecond level, enabling energy to be absorbed by the target material in an extremely short timeframe. This prevents significant thermal diffusion from occurring, directly shattering pigment particles into finer, dust-like powders. Picosecond lamp-pumped lasers excel in skin treatments due to their ultra-short pulse width and high peak energy. Key applications include:

♦ 1. The photomechanical effect of picosecond lasers not only shatters pigment particles more thoroughly but also significantly accelerates their metabolic clearance beneath the skin, achieving optimal depigmentation results. This treatment addresses hyperpigmentation issues such as freckles, melasma, and sunspots while improving uneven skin tone.

♦ 2. Tattoo Removal: Compared to traditional nanosecond lasers, picosecond lasers deliver more efficient action on tattoo pigments, reducing the number of treatments required while minimizing damage to surrounding tissue. Suitable for removing tattoos of all colors and types, including stubborn colored tattoos.

♦ 3. Skin rejuvenation: Utilizing a specialized fractional lens, picosecond laser technology creates laser-induced photodisruption effects beneath the skin without damaging the epidermis. This process stimulates the regeneration of deep-layer collagen and elastic fibers, effectively addressing concerns such as wrinkles, acne scars, and enlarged pores, resulting in firmer, smoother skin.

picosecond laser

However, this does not mean picosecond lasers can completely replace nanosecond lasers; rather, the two complement each other, each possessing unique advantages and characteristics. While nanosecond lasers have seen widespread routine clinical application, the emergence of picosecond lasers in recent years has not only addressed previously challenging conditions more effectively but also achieved superior results with significantly shorter recovery periods. Leveraging the relatively stable platform of lamp-pumped technology, both types of lasers play vital roles in applications such as pigment dispersion and skin rejuvenation.

RealLight can provide picosecond and nanosecond laser products with the above table parameters, as well as accessories such as power control systems and light guide arms, to ensure equipment performance and treatment safety, and help you effectively improve customer satisfaction.

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