An apparatus is provided to cut hair using laser light. The apparatus may include a handle portion having a proximal end. The handle portion may include a power source and processing circuitry. The handle portion may also include a laser generator configured to generate a laser light configured to cut hair or fiber shafts. The laser generator is configured to generate laser light having a wavelength selected to target a predetermined chromophore to effectively cut a hair shaft. The apparatus may also include a comb-like portion having a distal end. The comb-like portion may include a heat sink portion conductively coupled to the laser generator. The heat sink portion includes a heat dissipation material configured to change between at least two phases.