%0 Conference Paper %D 2015 %T Direct Laser Writing of 3D Gratings and Diffraction Optics %A M. Gerhard Moebius %A K. Vora %A S. Kang %A P. Munoz %A G. Deng %A Mazur, E. %K CA %K San Jose %K San Jose Convention Center %K USA %X We fabricate 3D gratings and diffraction optics using direct laser writing. Diffraction patterns of gratings agree with Laue theory. We demonstrate zone plates for visible wavelengths. Direct laser writing is promising for integrated diffraction optics. %I CLEO: Science and Innovations Laser-Induced Structuring in Bulk Material (SW1K) %G eng %U /files/mazur/files/rep_748.pdf %R 10.1364/CLEO_SI.2015.SW1K.6