Vivekananda Adiga

Phone Number: 215-898-4591
Email: adiga_at_seas.upenn.edu
Office: 112 Towne

Education:

Ph.D. Dissertator, Materials Science and Engineering, (expected 2010), U. Pennsylvania
M.S., Materials Science, (2005), University of Maryland-College Park
B.S., Metallurgical Engineering, (2002), National Institute of Technology, Surathkal

Research Interests:

My present work focuses on characterizing ultrananocrystalline diamond films grown at a low temperature in relation to their application in high frequency resonators. I study the intrinsic dissipation and stiffness of ultrananocrystalline diamond microresonators at cryogenic temperatures. Intrinsic dissipation in these microresonators arises from the presence of defects in grain boundaries which move from one state to another under stress. Relaxation times for such transitions critically depend on the type of defects and temperature. My aim is to characterize the nature of these defect transitions at lower temperatures.

Refereed Publications:

Temperature Dependence of Dissipation and Modulus in UNCD Resonators
V.P. Adiga, A.V. Sumant, S. Suresh, C. Gudeman, O. Auciello, J.A. Carlisle, R.W. Carpick. SPIE Conf Proc, 7318, 731818/1-8 (2009).

Mechanical Stiffness and Dissipation in Ultrananocrystalline Diamond Resonators
V.P. Adiga, A.V. Sumant, S. Suresh, C. Gudeman, O. Auciello, J.A. Carlisle, R.W. Carpick. Phys Rev B, 79, 245403/1-8 (2009).

Are Diamonds MEMS’ Best Friend?
O. Auciello, S. Pacheco, A.V. Sumant, C. Gudeman, S. Sampath, A. Datta, R.W. Carpick, V.P. Adiga, P. Zurcher, Z. Ma, H.C. Yuan, J.A. Carlisle, B. Kabius, J. Hiller, S. Srinivasan. IEEE Microw. Mag., 8, 61-75 (2007).

Dielectric Properties of Hydrogen-incorporated Chemical Vapor Deposited Diamond Thin Films.
C. Liu, X. Xiao, J. Wang, B. Shi, V.P. Adiga, R.W. Carpick, J.A. Carlisle, and O. Auciello. J. Appl. Phys., 102, 74115/1-7 (2007).

Development of High-throughput, Polarization-maintaining, Near-field Probes
V.P. Adiga, P.W. ;Kolb, G.T. Evans, M.A. Cubillos-Moraga, D.C. Schmadel, R. Dyott, H.D. Drew. Appl. Optics, 45, 2597-2600 (2006).

Professional Memberships, Honors:

Herb Foundation Distinguished Graduate Fellowship, UW-Madison, 2005-2006
Member, American Physical Society, 2003-present
Member, Materials Research Society, 2008-present
Member, Metallurgical Engineering Association, India 1999-2002