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cw laser spectroscopy techniques and demonstrates the versatility of direct frequency comb spectroscopy. 

Our measured transition frequencies are in good agreement with previous measurements, while achieving greater accuracy for the 9S$_{1}$$_{/}$$_{2}$ , 7D$_{3}$$_{/}$$_{2}$ , and 7D$_{5}$$_{/}$$_{2}$ states. 

In these measurements the uncertainties were typically limited by signal-to-noise ratio and fitting uncertainties combined with uncertainties in the determination of the ac Stark shifts and geometrical factors. 

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We thank Hugh Robinson for insightful advice and preparation of the Cs vapor cell. We are grateful to Jose 

## VI. ACKNOWLEDGEMENTS 

Almaguer, Nate Newbury, and Todd Johnson for care- fully reading the manuscript and providing valuable sug- gestions and discussions. One of us (VM) was supported in part by the DST(RSA) PDP through the National 

