Which mechanism limits coherence length in excimer lasers?

💡 Explanation

Spontaneous emission introduces photons with random phases; therefore, the coherence is limited because spontaneous emission broadens the spectral linewidth, rather than linewidth being narrowed by gain saturation or altered via stimulated emission.

• Which outcome commonly results when excessive mechanical stress fractures polymer chains?
• Which electrical consequence results when exceeding gate threshold voltage?
• Which limitation emerges when a GPS satellite relies solely on its onboard atomic clock, neglecting relativistic effects?
• Which mechanism limits the maximum efficiency of a thermoelectric generator converting a temperature gradient into electrical energy?
• Which risk increases when dissimilar optical path lengths combine?
• Which consequence inhibits crystal growth during rapid precipitation of calcium fluoride?