The technical objective of sequential dual-wavelength emission involving 1440 nm and 1320 nm is to achieve multi-layer skin rejuvenation by targeting different depths within a single, synchronized treatment pulse. By firing these distinct wavelengths within a precise 3-5 millisecond interval, the system treats superficial photodamage and deep structural aging simultaneously without effectively increasing the total energy density required for efficacy.
The core advantage of this technology is synergy without thermal overload. It allows practitioners to address surface texture and deep structural laxity in one session, managing heat accumulation to maximize results while minimizing tissue stress.
The Mechanics of Sequential Targeting
Precise Depth Customization
The fundamental goal of this dual-wavelength approach is to uncouple the treatment of different skin layers.
The 1440 nm wavelength is utilized to target superficial tissue. Its technical objective is to address top-layer imperfections, specifically photodamage and surface irregularities.
Addressing Structural Aging
Conversely, the 1320 nm wavelength is engineered to penetrate deeper into the dermis.
Its primary function is to target deep structural aging, acting on the foundational elements of the skin to improve laxity and underlying architecture.
The 3-5 Millisecond Interval
The technical success of this method relies heavily on the timing between pulses.
The system fires the two wavelengths sequentially with a 3-5 millisecond delay. This specific timing allows for the distinct thermal effects of each wavelength to occur synergistically without undefined thermal merging that could cause damage.
Understanding the Trade-offs
Managing Thermal Accumulation
A common challenge in laser therapy is delivering enough energy to be effective without burning the tissue.
Sequential emission addresses this by managing thermal accumulation. It delivers a comprehensive treatment effect without necessitating a dangerous increase in total energy density.
Efficacy vs. Energy Density
Typically, achieving deep and superficial results would require two separate, high-energy passes or a single, very aggressive pulse.
This technology enhances clinical efficacy significantly. However, it does so by distributing the energy profile across two depths, preventing the "bulk heating" risks associated with high-density single-wavelength treatments.
Evaluating Clinical Utility
If your primary focus is Surface Correction: The 1440 nm component is the active agent for treating visible photodamage, but the addition of 1320 nm provides structural support that may improve the overall aesthetic outcome.
If your primary focus is Structural Tightening: The 1320 nm component addresses the deep aging, yet the sequential 1440 nm pulse ensures the surface texture matches the improved underlying structure.
If your primary focus is Efficiency: This approach offers a "two-in-one" solution, reducing total treatment time while mitigating safety risks associated with thermal stacking.
By decoupling depth targeting from energy density, sequential dual-wavelength emission offers a sophisticated method for total skin rejuvenation.
Summary Table:
| Feature | 1440 nm Wavelength | 1320 nm Wavelength |
|---|---|---|
| Target Depth | Superficial (Top-layer tissue) | Deep (Dermal layer) |
| Primary Objective | Treat photodamage & surface texture | Address structural aging & laxity |
| Technical Goal | Surface correction | Structural tightening |
| Synergy Effect | 3-5ms interval prevents thermal overload | Dual-depth treatment in one pulse |
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References
- А. А. Кубанова, Natalia Mikhailova. Skin rejuvenation with the use of fractional photothermolysis(MultiPlex technology) in a combination with the CAP system. DOI: 10.25208/vdv998
This article is also based on technical information from Belislaser Knowledge Base .
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