【摘要】 在CO₂激光器外部一个20厘米长的气体盒上,加上400赫、20代有效值正弦波调制信号和440伏直流偏压,当气压为5托时,得到了41%的调制度.计算了气体盒的最大调制度,其值为42%,与实验所得到的最大调制度很好地符合.当正弦波调制信号为2兆赫、20伏有效值时,达到12%的调制度.NH₂D由ND₃和NH₃混合而制备,ND₃由作者自制.更多还原

【Abstract】 Molecular Stark effect in NH2D is used to modulate strong P (20) line at 10.6 pm of a CO2 laser. A modulation depth of 41% is obtained from a 400 Hz 20V rms sinusoidal modulation signal and a 440 V DC bias applied to a 20 cm gas cell outside the laser at a gas pressure of 5 torr. The maximum modulation depth of the gas cell is calculated as 42%, which is in good agreement with the experimental result. When sinusoieal modulation signal is 2 MHz 20 V rms, a modulation depth of 12% is achieved. NH2D was prepared by mixing ND3 and and ND3 was prepared by the present authors.更多还原