@conference {Schaffer:572,
	title = {Micromachining and material change characterization using femtosecond laser oscillators},
	year = {2002},
	publisher = {Photonics West},
	organization = {Photonics West},
	abstract = {We use third harmonic generation (THG) microscopy to image waveguides and single-shot structural modifications produced in bulk glass using femtosecond laser pulses. THG microscopy reveals the internal structure of waveguides written with a femtosecond laser oscillator, and gives a three-dimensional view of the complicated morphology of the structural changes produced with single, above-threshold femtosecond pulses. We find that THG microscopy is as sensitive to refractive index change as differential interference contrast microscopy, while also offering the three-dimensional sectioning capabilities of a nonlinear microscopy technique. It is now possible to micromachine three- dimensional optical devices and to image these structures in three dimensions, all with a single femtosecond laser oscillator.},
	keywords = {CA, San Jose},
	doi = {10.1117/12.461370},
	url = {/files/mazur/files/rep_572.pdf},
	author = {Schaffer, C. B. and J. Aus der Au and Mazur, E. and J. A. Squier}
}
