Which laser mode is most effective in allowing tissues to absorb and dissipate heat?

The free running pulsed mode is particularly effective for allowing tissues to absorb and dissipate heat due to its unique pulsing characteristics. This mode delivers energy in short bursts, which provides the tissue with brief periods of heating followed by intervals of cooling. This helps to prevent overheating and allows for better management of thermal effects on the target tissue, minimizing damage to surrounding areas.

In contrast, continuous mode delivers a steady stream of laser energy, which can lead to excessive heat build-up in the tissues, potentially causing unwanted thermal injury. The gated wave mode, while innovative, doesn't offer the same degree of control over heat dissipation as the pulsed method, as it can still result in significant energy accumulation during the active phase. Therefore, the free running pulsed mode is optimal for applications where careful thermal management is critical, making it the best choice among the options provided.