Fax:
(732) 445 3258
E-mail : roshan@eden.rutgers.edu
Education
n 2004: PhD Ceramic and Materials Engineering, Rutgers University, New Brunswick,
NJ.
n 2001: MS Ceramic and Materials Engineering, Rutgers University, New Brunswick,
NJ.
n 1997: MS Physics, Indian Institute of Technology, Madras, India.
Current Area of Research
n Low-loss
optical/infrared hollow glass and polymer waveguides
n Metallization
of glass and plastic surfaces using electroless,
autocatalytic bath – deposition of silver and copper
n Large
area optical/infrared thin film coatings- single and multilayer
anti-reflective dielectric coatings – deposition of metal halides and chalcogenides
n Flexible
Laser power delivery systems: laser surgery, sterilization of bottle caps,
printing and marking, and industrial cutting and welding
n Hollow
waveguide for temperature and chemical sensing
Brief Biography and Research Highlights
A graduate in physics from the Indian Institute of Technology, Madras,
Roshan joined the specialty fiber optics group, Rutgers
University, in the fall of 1999.
His initial topic of research was the development of low-loss hollow
silver/silver iodide waveguides on polymer substrates. It involved the
investigation of issues related to metallization of polymer surfaces. After
experimenting with several polymers, the choice of the polymer substrate was narrowed down to polycarbonate tubes. Excellent
transmission throughputs were obtained with the large bore size polycarbonate
waveguide and the lowest ever waveguide loss (0.01 dB/m) at 10.6 µm
wavelength was measured. These waveguides were used
in an air force program to develop a waveguide based temperature sensor for
aircraft engine turbine blades. He developed the copper/ copper iodide
waveguide operating in the wavelength range 2 µm to 15 µm for broadband
applications. His current area of research involves the development of the multilayer
dielectric waveguide using high index contrast metal-chalcogenides. Roshan
also works on computational studies of the loss and mode characteristics of
the hollow waveguide. Preliminary development work on a waveguide based,
spatial filter for NASA’s Terrestrial
Planet Finder Mission was also conducted.
Besides developing new waveguide, he worked on external projects such as the
development of a technology for fast sterilization of bottle cap using a
scanned, CO2 laser beam. Roshan is a skilled user of the AFM,
optical microscopes, FTIR and UV/VIS spectrometers, process control systems,
A/D interfacing and IR imaging. He is highly skilled in optical bench setup
and alignment, and laser cavity alignment and beam walking. Before joining Rutgers,
he was involved in conducting computer simulation studies on super-ionic
glasses at the Indian Institute of Technology, Madras.
Several compositions of Lithium phosphate glasses were made
and characterized using neutron and x-ray diffraction. Roshan spends his
spare time socializing with his friends. He also enjoys putting together
computers and working with Linux. He is an avid electronics hobbyist and
loves designing, top of the line, audio systems and listening to music. He is scheduled to complete his PhD at Rutgers
University in the spring of 2004,
and is current looking for a full time engineering, research and development
position.
Professional & Academic Activities
n Member,
Optical
Society of America
n Member,
SPIE-The
International Society for Optical Engineering
n Member,
Ceramics & Materials Graduate Student Association
n Member,
Linux
User Group, NJ
Experience
n 1999-2004:
Graduate Research Assistant, Ceramic and Materials Science and Engineering, Rutgers
University, Piscataway,
New Jersey
n 2000-2001:
Instructor, Engineers of the Future Summer program, Rutgers University School
of Engineering, Piscataway, New
Jersey
n Fall
2000: Teaching Assistant, Computer programming, Rutgers
University, Piscataway,
New Jersey
n 1997-1999:
Research Associate, Indian Institute of Technology, Madras
