Planar laser imaging and modeling of matrix-assisted pulsed-laser evaporation direct write in the bubble regime

نویسندگان

  • Brent R. Lewis
  • Edward C. Kinzel
  • Normand M. Laurendeau
  • Robert P. Lucht
  • Xianfan Xu
چکیده

A combination of planar laser imaging and theoretical modeling has been used to examine matrix-assisted pulsed-laser evaporation direct write MAPLE-DW in the bubble regime. MAPLE-DW is a method for patterning substrates via laser-initiated forward transfer of an organic fluid containing metallic particles and coated on a transparent support. For our conditions, best deposition of a silver-based, thick-film ink was found to occur when laser-initiated vaporization forces the ink outward as a bubble. Planar laser imaging was used to monitor bubble growth as a function of time for three different ink films with nominal thicknesses of 12, 25, and 50 m and two laser beam diameters of 30 and 60 m. From these measurements, correlations were developed for predicting the maximum height and velocity of bubbles via three known process variables: laser energy, ink thickness, and beam diameter. Further insight on the physics of the MAPLE-DW process was obtained by developing a theoretical model for bubble growth based on a simple force balance associating vapor-pocket pressure and viscous forces. Primary parameters specifying the subsequent differential equation were related to the above process variables. Numerical solutions to the differential equation were used to predict successfully bubble growth versus time for the conditions analyzed in the imaging experiments. © 2006 American Institute of Physics. DOI: 10.1063/1.2234542

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New approach to laser direct writing active and passive mesoscopic circuit elements

Ž . We have combined some of the major positive advantages of laser-induced forward transfer LIFT and matrix-assisted Ž . pulsed laser evaporation MAPLE , to produce a novel excimer laser driven direct writing technique which has demonstrated the deposition in air and at room temperature and with sub-10 mm resolution of active and passive prototype circuit elements Ž on planar and nonplanar sub...

متن کامل

Plasma Wave Acceleration of Electron in Bubble Regime in Presence of a Planar Wiggler

The plasma wave acceleration of electron in the bubble regime is investigated in a new configuration containing a planar wiggler. The space-charge field of the laser-created ion channel can focuse and stabilize the electron trajectory to guide it toward the acceleration region. The high-gradient plasma wave field can resonantly accelerate the trapped electron to higher energies in the presence ...

متن کامل

Dielectric properties of oxide structures by a laser-based direct-writing method

Matrix-assisted pulsed laser evaporation direct-write (MAPLE-DW) is a laser-based method of directly writing mesoscopic patterns of electronic materials. Patterns of composite BaTiO3/SiO2/TiO2 dielectric material were written onto Pt/Au interdigitated-electrode test structures, with precise control over final dielectric properties. Scanning electron microscopy indicates random close-packed stru...

متن کامل

Laser Direct Writing of Hydrous Ruthenium Dioxide Micro-Pseudocapacitors

We are using a laser engineering approach to develop and optimize hydrous ruthenium dioxide (RuOxHy or RuO2·0.5 H2O) pseudocapacitors. We employ a novel laser forward transfer process, Matrix Assisted Pulsed Laser Evaporation Direct Write (MAPLE-DW), in combination with UV laser machining, to fabricate mesoscale pseudocapacitors and microbatteries under ambient temperature and atmospheric condi...

متن کامل

The advantage of using a diode laser instead of a Q-switched laser in photoacoustic imaging of tissues

Photoacoustic (PA) imaging of biological tissues using laser diodes instead of conventional Q switched pulsed systems provides an attractive alternative for biomedical applications. However, the relatively low energy of laser diodes operating in the pulsed regime, results in generation of very weak acoustic waves, and low signal-to-noise ratio (SNR) of the detected signals. This problem can be ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006