One of the highest power lasers in the world sits on a table in the General Research Lab Building at Colorado School of Mines. It emits pulses that last approximately 19 fs, and contain 90 mJ of energy. "fs" indicates a femtosecond, which is 10−15 seconds. When the beam exits the laser, it is approximately 30 mm in diameter. Molecules begin to ionize when applied electric fields reach approximately 8.680e+09 V/m. To what diameter must the beam be focused to reach this electric field strength?
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One of the highest power lasers in the world sits on a table in the General Research Lab Building at Colorado School of Mines. It emits pulses that last approximately 19 fs, and contain 90 mJ of energy. "fs" indicates a femtosecond, which is 10−15 seconds.
When the beam exits the laser, it is approximately 30 mm in diameter. Molecules begin to ionize when applied electric fields reach approximately 8.680e+09 V/m. To what diameter must the beam be focused to reach this electric field strength?
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