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Watt's Up
College
of Optical Sciences News for Thursday, April 27, 2006
April 27, 2006 -- Optical
Sciences Colloquium -- 3:45 p.m. -- Meinel 408/410
 Tom
Krupenkin, Bell Laboratories Lucent Technologies, will present
Manipulating Liquids on the Tunable Nanostructured Surfaces.
Abstract: An ability to manipulate microscopic volumes of liquids with
the high precision becomes increasingly important with the recent
progress in micro- and nanofluidics and its rapid penetration in various
industrial applications. Dynamic control over the interaction of liquids
with the solid substrate constitutes a very important aspect of this
problem. Nanostructured solid surfaces offer a promising way to achieve
this goal. In this talk we discuss recently demonstrated dynamically
tunable nanostructured surfaces. The behavior of these surfaces can be
reversibly switched between superhydrophobic and hydrophilic states by
the application of electrical voltage and current. The proposed approach
potentially allows novel methods of manipulating microscopically small
volumes of liquids. This includes almost frictionless liquid transport,
the ability to precisely control droplet shape and position, as well as
dynamic control over the penetration on liquids through the
nanostructured layer. The obtained results potentially open new and
exciting opportunities in optofluidics, thermal management of
microelectronics, chemical microreactors, bio/chemical lab-on-a-chip
devices, and many other areas. Note: Today's
colloquium is the last of the semester. Our Colloquium series will
resume shortly after the start of the Fall semester, so please join us
then.
Kyle Fuerschbach Receives
Jack Gaskill's 2006 Scholarship Award
 Click
on the thumbnail for a larger view. The award recipient, always an OSC Bachelor's degree student, is selected on the basis of merit,
achievement, and future potential within the optics industry. This
is a very special scholarship award: For twenty years, Dr. Jack D.
Gaskill was the Associate Director for Academic Affairs at Optical
Sciences, where he played a key role in shaping the graduate curriculum,
starting the undergraduate program, recruiting students, and mentoring
students as they pursued their degree in Optical Sciences. In 1999, he
commemorated his retirement from teaching by contributing a very
generous leadership gift to endow an undergraduate student scholarship
in Optical Sciences. Optical Sciences alumni joined Dr. Gaskill in the
spirit of the endowment by contributing generously to the fund, and the
Jack D. Gaskill Endowed Scholarship Award was born.
Congratulations Kyle, on receiving this uniquely OSC award.
Daughters and Sons on Campus
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Every spring, the University
encourages departments to provide a day of special programs for
youngsters, formerly known as Bring Your Daughters to Work day.
This year, the event became gender-neutral and Optical Sciences hosted
two workshops: Kelly Potter conducted a kaleidoscope-making workshop in the morning and Alan Kost conducted a
laser-transmitter workshop in the afternoon. Judging from the
pictures, everyone had a grand time. |
Kaleidoscope-Making
Workshop |
Laser-Transmitter
Workshop |
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Click on
the thumbnails for a larger view. |
Save the Date
OSC's
Fall 2006 Written Comprehensive Exam, fondly known as Prelims, is
scheduled for Tuesday and Wednesday,
September 19 and 20, from 8:30 a.m. to Noon. (Optics minors will take
the exam on Wednesday morning only.) Students planning to take the
exam must sign up by August 28. Sign up at the front counter in
the Academic Programs Office, Meinel 403.
OSC Library Books are Due
Now
Any library materials you have
checked out of the OSC library are due at the end of the semester:
Friday, May 12. Please return all materials by that date or
-- if you plan to spend the summer studying -- contact Heather Hawley to renew them.
Will You Be on Campus on
Sunday, May 7?
UA will be conducting a
simulated mass disaster course as part of a training program for
healthcare providers. The simulation, in the area of the North
Ballroom at the Student Union, is expected to be very noisy and chaotic,
but it will be merely a simulation and victims will be volunteers posing
as patients. BTW: Anyone interested in registering for the
course may call 520-626-2882 for more information.
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Around
Campus
April 27, 2006 --
Aerospace and Mechanical Engineering Seminar -- 4:00 p.m. -- AME
S212
PhD candidate Ning Lei will present The Thermal
Characteristics of Multilayer Minichannel Heat Sinks in
Single-Phase and Two-Phase Flow. Abstract:
One of the most promising
configurations for indirect liquid cooling of electronic systems
is in the use of heat sinks or cold plates where a liquid is
forced to flow through channels embedded in a solid matrix.
Traditional mini and microchannel heat sinks consist of a single
layer of parallel, high-aspect ratio rectangular channels
microfabricated in silicon or copper. The alternative new mini
and microchannel heat sinks are fabricated by stacking many
channels together to create multilayer channels. These
multilayer heat sinks can achieve very high heat fluxes due to
high heat transfer coefficients from small channels and large
surface areas from multilayer structure. In this work, square
multilayer channel copper minichannel heat sinks were fabricated
by soldering multiple layers channel together. It was shown
experimentally that multilayer heat sinks have significant
advantages in single-phase flow over single layer equivalents
with reductions in thermal resistance and pressure drop.
Numerical simulations using CFD were performed and comparisons
were made with experimental results. A resistance network model
for both single and multilayered heat sinks was also developed
to do the parametric studies with respect to channel geometries,
number of layers, and heat sink conductivity. Both the
single and multilayer heat sinks were also tested in two-phase
flow. An effort was made to model the two-phase flow inside
small channels by dividing the flow into three different zones:
single-phase flow, subcooled boiling flow, and saturated boiling
flow. Several boiling correlations combined with the resistance
network model were used to compute the heat sink surface
temperature distribution. It was found the classical boiling
correlations for large size channel are not suitable for the
mini channels. Boiling correlations for small channels fitted
experimental results better. The more knowledge on flow patterns
and boiling mechanisms inside small channels are needed for the
better understanding of the boiling process in mini and
microchannel.
April 28, 2006 -- Physics
Colloquium -- 2:00 and 2:45 p.m. -- PAS 220
(at 2:00)
Graduate student Wenzhou Chen will present Measuring the
Number Statistics of Atoms in an Optical Lattice with a
Quantized Light Field. Abstract: The number
statistics of atoms in an optical lattice is an important means
to characterize the manibody state of the atoms. For instance,
the superfluid and Mott insulator states that have recently been
realized with ultra-cold atoms in an optical lattice can be
distinguished by their different number statistics. In this talk
I will show how the number statistics of atoms in a lattice can
be analyzed using the reflection of a quantized light field off
the atoms.
(at 2:45) Peter Shanahan, Fermi National Laboratory, will
present Recent Results and Future Prospects in Neutrino Physics.
Abstract: More than 40 years ago, a Nobel Prize winning
experiment showed that neutrinos come in distinct flavors:
neutrinos created in association with muons produced only muons
when they interacted, and not electrons. Over the past decade,
however, a series of experiments have established that the
flavor of a neutrino does indeed change with time. The most
likely explanation of this phenomenon is neutrino flavor
oscillation, requiring a finite neutrino mass and therefore an
extension of the Standard Model of Particle Physics. Related
physics at energies far beyond direct experimental reach may
well explain the preponderance of matter over antimatter in the
universe. The impact of accelerator-based experiments in our
understanding of neutrino masses and flavor will be discussed,
with an emphasis on current and anticipated experiments at
Fermilab.
April 28, 2006 --
Aerospace and Mechanical Engineering Seminar -- 4:00 p.m. -- AME
N715
Dr. Mohamed A. Gaballa, University of Arizona Health Sciences
Center and AME faculty candidate, will present Stem Cell Therapy
for Acute Myocardial Infarction: An Engineer Perspective.
Abstract:
Despite recent therapeutic advances, myocardial infarction (MI,
heart attack) and its consequences such as congestive heart
failure remain a leading cause of death in Western Society. A
growing body of evidence indicates cell-based strategies
(regenerative medicine) have promising therapeutic potential for
cardiac revascularization and restoration of cardiac function.
Recent clinical and pre-clinical studies demonstrate varying
degrees of cardiac regeneration using different stem cell
populations such as embryonic stem cells, skeletal myoblasts,
cardiac stem cells, hematopoietic stem cells, endothelial
progenitor cells (EPCs), and mesenchymal cells. However, the
efficacy of cell-based therapy need to be determined in a larger
controlled clinical trials. The cellular source with the highest
potential for cardiovascular regeneration is still unknown. Bone
marrow (BM) and skeletal muscle are the most commonly used
sources of stem cells used in clinical trials. However, these
two sources have several limitations. Human umbilical cord blood
(hUCB) has several advantages. Cord blood (CB) is a viable and a
practical source of stem cells. CB cells are naïve, and CB
contains a high number of immature progenitor/stem cells.
Utilization of hUCB stem cells is particularly important in the
elderly and chronically ill for whom the autologous stem cells
number and function are limited. In my laboratory, we use hUCB-derived
progenitor cells (CD34+ and CD133+) to repair the myocardium
after acute MI. Using an ischemia-reperfusion rat model we
demonstrate that transplantation of these cells improve cardiac
function after acute MI mainly by inducing vasculogenesis and
retarding left ventricular remodeling. However, it is still
unclear whether the improvement in cardiac function is primarily
due to the incorporation of the transplanted cells into the
vasculature or due to angiogenic factors released by these
cells. Since these cells are typically transplanted into
ischemic heart, they are subjected to hypoxia. To identify the
hypoxia-induced genes, and possibly the factors released by
these cells in the infarcted myocardium, we compared the gene
expression of fresh isolated CD34 CD133 cells incubated for 24
hrs under normal conditions to those cells exposed to hypoxia.
Out of the 128 angiogenic genes examined, hUCB-progenitor cells
differentially express a limited number of genes when subjected
to hypoxia (VEGFb, Angiopoiten1/2, CSF, PDGF /b, FGFb, EGFR3,
TFGb, and VG5Q). We also showed that grafting of an accellular
3-D extracellular matrix scaffold (collagen type-1) onto
cryoinjured myocardium improves cardiac function by inducing
vasculogenesis/angiogenesis, preventing cardiac remodeling.
Currently we are engineering different ex-vivo tissue patches
(3-D collagen scaffold populated with CB-derived EPC), measuring
their mechanical properties, and examining the effects of
grafting these tissue engineered patches onto infarcted
myocardium. Supplementing these scaffolds with growth factors is
under investigating in our laboratory.
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Happy Birthday
Watt's Happening
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April 27, 2006 -- Optical Sciences Colloquium -- 3:45
p.m. -- Meinel 408/410
This is the last Colloquium of the semester.
April 28, 2006 -- Last Day to Turn in Your Summer
Comp Paperwork
April 28, 2006 -- PhD Final Oral -- Noon -- Steward
Observatory N305
Thomas Stalcup, Jr. will present Design and Construction of a
Multiple Beam Laser Project and Dynamically Refocused Wavefront Sensor.
April 28, 2006 --MS Final Oral -- 2:00 p.m. -- RSC
Jessica D'Amico will present Characterization of a Lamp-Based System
for Reflectance Retrieval.
May 1, 2006 -- Degree Certification Deadline
PhD graduates must submit their dissertation and signed completion
documents.
May 3, 2006 -- Last Day of Classes
May 3, 2006 -- MS Final Oral --
1:00 p.m. -- Meinel 654
Peter C. Hill will present Characterization of Common Path Phase
Sensing for Nulling Interferometry.
May 4, 2006 -- OSC Spring Faculty Meeting -- Noon to
1:00 p.m. -- Meinel 408/410
Lunch will be provided.
May 5, 2006 -- Final Examinations Begin
May 10, 2006 -- PhD Final Oral -- 10:00 a.m. --
Meinel 701
Sang-Ki Park will present Master/Slave Servo Technique and
Characteristics of Bit-Wise Volumetric Optical Data Storage.
May 12, 2006 -- Final Examinations End
May 12, 2006 -- Degree Certification Deadline
M.S. graduates must complete their final oral exam and submit signed
completion documents.
May 13, 2006 -- Spring Commencement -- Congratulations
Graduates!
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Employment Openings
Summer Intern. Intel.
The candidate needs to
have solid understanding of geometric optics, image formation,
Fourier optics, polarization, and coherence theory. Knowledge on
Photo lithography will be a big plus. The project is to do some
simulation works on optical lithography processes, which includes
water and high index fluid immersion lithography and EUV
lithography. The project also requires using an analytical SEM
(Scanning Electro Microscope) to collect experimental data for the
comparison study with the simulations. The simulation tool and
training will be provided. The job will be well compensated and
will be a chance to make inside contacts for permanent position in
the future. Contact: Sang H. Lee, Intel® Corporation,
Lithography Capital Equipment Development. Office:
408-653-5075. Fax: 408-765-2554.
Multiple Openings. Arete Associates.
Arete Associates in Tucson is looking for Senior Electo-Optic
Scientist/Engineer, Electro-Optic Integration Engineer, and an
Electro-Optic Technician. Please send resume and position of
interest to
jmckay@arete.com
Commercial Sales Specialist. Spectra-Physics.
Join the cutting edge where light is created.
Spectra-Physics has an exciting opportunity for a dynamic individual
looking to start on the path of an outside sales career in the laser
industry. Position summary: Primary responsibility is to
provide support to the Market Development Mangers (MDM) by managing
internally focused customer issues. Acts as a liaison between the
MDM and Newport/Spectra-Physics' engineering, manufacturing, product
management and logistics. Duties include managing timely completion
of customer action items, compiling information to be used in
customer meetings and maintain customer files through CRM software
(Pivotal) and network folders. Additional responsibilities include
initial lead qualification and follow up of commercial laser
customers. Duties may also be extended to primary sales
responsibility for lower priority commercial laser customers. This
position is a development opportunity for a future commercial sales
position. Position Duties: Provide support to MDM and
manage internally focused customer issues. Support MDM in
their sales objectives to meet or exceed required quotas. Assist in
establishing, developing and closing business opportunities.
Manage timely completion of customer focused internal action items
lists. Update MDM with status and information relative to action
item lists. Assist in maintaining shared customer files
through Pivotal (CRM software) and network folders. Coordinate
with MDM to prepare proposals and/or presentation materials.
Specifically translating information & data from operations into
customer presentable formats. Stay current on issues related
to targeted and volume accounts by participating in internal
meetings and represent sales as needed. Work with operations
to streamline & standardize the process for compiling information to
assist in quarterly customer scorecards meetings. Assist in
gathering and preparing data for sales analysis. Primary sales
responsibility on lower volume sales opportunities. Develop
market and application knowledge. Develop product knowledge
(NP & competitors) to the level that basic features, benefits and
competitive advantages are understood for each market segments.
Assist the MDM in prioritizing lower volume accounts. Take
lead sales role on lower priority sales opportunities. Lead
Qualify & Handling: Handle inbound sales lead calls and
properly qualify opportunities. Fulfill customer’s request for
information and provide follow-up customer qualification.
Communicate such qualified customers to field sales force for
contact. Make outbound lead follow-up calls to potential and
existing customers to qualify leads and sell products and services.
Enter new customer data and other sales data for current customers
into computer database. Desired competencies:
Communication: Good sales discovery skills to accurately qualify
leads. Strong written and oral communication skills. Planning
& Organization: Strong organizational skills with the ability to
priorities task, set. and achieve goals/objectives. Problem
Solving: Ability to identify and resolves problems in a timely
manner. Computer: Basic PC skills, including common software
programs (MS Word, Excel, and Outlook) and the aptitude for learning
new programs. Personal Attributes: The ability to work
independently or as a team and complete tasks with minimal
supervision. Requirements: Bachelor’s degree (B. A.)
from four-year College or university; or one to two years’ related
experience and/or training; or equivalent combination of education
and experience. Technical or sales experience in the photonics
industry is preferred. Accepting both entry level and experienced
candidates with interest in career path into outside sales position.
Please submit your resume to:
Resumes.mtnview@spectra-physics.com Reference job: CSS.
Principal Optical Engineer/Scientist. The Photonics
Group. Our firm, one of the leading companies in infrared
technology used in surveillance and reconnaissance is searching for
an Principal Optical Engineer / Scientist to lead the development of
IR and VIS lens systems and components. Our technologies span VIS
and IR applications used in sensors and detectors containing state
of the art optical components found in ground based, airborne and
space based platforms, and comprise an very unique product line.
The candidate selected for this position will be responsible for
concept development, preliminary and critical design and analysis of
complex Infrared (IR) optical imaging systems. Lead optical design
projects which supports the IR product lines. Researches, develops
and applies advanced optical system engineering theories, methods
and research techniques in solution of complex technical problems.
Conducts investigations, tests and analysis of considerable
complexity. Duties and responsibilities: 1. rimary
responsibility is the critical design and analysis of complex,
multi-element (multi-FOV and continuous zoom) lens systems for use
in MW (3-5um) and LW (8-12um) Infrared Imaging systems. Visible &
NIR lens design experience a plus. Propose system concepts and
designs that are technically feasible, fiscally sound, and
consistent with corporate strategy. Validate through modeling &
testing. 2. Define system requirements and flow-down
specifications to related design disciplines (i.e., opto-mechanical,
optical systems, coating, etc). 3. Develop analytical models
and use existing industry software (ZEMAX-EE) or accepted standards
to predict optical system performance under all conditions (i.e.,
thermal, vibration, adverse environments, etc.). Develop
manufacturing and performance tolerance and error budgets for
optical systems. 4. Provide technical expertise to the
solution of difficult engineering problems especially in the area of
complex, multi-element (multi-FOV and continuous zoom) lens designs,
optical systems engineering and optical shop testing. Prepare and
present optical requirements, design reviews, reports, lens
drawings. Works closely with lens manufacturers (internal *
external) to fabricate, coat and test lens systems. Works closely
and cooperatively with mechanical engineers to productize and
package optical designs. 5. Leads optical systems engineering
efforts on major development programs and lead specific customer
funded or internal R&D projects as assigned, particularly projects
with high technical content. Report project status as required.
6. Understand customer needs and the marketplace, its subdivisions
and trends. Maintain knowledge of new technologies in the optical
industry which are potentially applicable to our product lines.
Participate in the development of product line strategy. 5.
Work closely with Corporate R&D and all other engineering, sales and
operations functions in order to efficiently complete engineering
tasks, solve technical problems, avoid redundant activities and most
effectively apply internal expertise. 7. Work with absolute
commitment to corporate goals. Adhere fully to corporate
strategies, policies, schedules and budgets. 7. Assist in
winning funded R&D, which is synergistic with existing development
plans or nurtures key customer relationships. Lead and contribute
to technical proposals. 8. Mentor junior engineers. Provide
significant contributions to new product development including
patents, papers, and presentations. Promote the sharing of
technology across business areas. Author technical publications on
a regular basis or at least one per year. Represent corporation at
technical conferences. Participate in the technical career
development of engineers. 9. Support other departments
and customers by fielding technical inquiries. 10. Perform
other job related activities as required. Requirements:
BS in optical engineering. MS preferred. Ten years experience in
lens design and product development, preferable with imaging
systems. Ten years in depth experience in IR lens design. Must be
proficient with ZEMAX Optical Design software. Ability to work
effectively with all technical professionals; technicians,
engineers, scientists and consultants. Ability to report
effectively. Technical excellence in IR optical design with
experience in other areas of optics including: visible optics,
laser optics, shop testing of optical elements and lens assemblies,
etc. Please forward resumes to
rsb@mri-rtp.com Robert Bradley, The Photonics Group, 6011
Fayetteville Road Suite 203, Durham NC. 919 572 2292.
Sales
Development Engineer. Spectra-Physics.
Join the cutting edge where light is created.
Spectra-Physics, now a division of the Newport Corporation, has long
been recognized as the laser technology leader - serving customers
in over 70 countries around the world. Founded in 1961 and
headquartered in Mountain View, CA, Spectra-Physics designs,
develops, manufactures and distributes premier lasers and laser
systems for a variety of commercial and industrial markets such as
Life & Health Science, Aerospace and Defense, Computers,
Telecommunications, Research and Development, Original Equipment
Manufacturers (OEM) and Microelectronics. Spectra-Physics has
an exciting opportunity for an individual wanting to begin their
journey to either a Marketing or Sales career in the lsaer industry.
Duties & Responsibilities: Primary contact for initial sales
discussions and distributing sales leads. Coordinates with Sales
Representatives to provide sales lead qualification, sales
documentation, and satisfy customer requirements. Work with
marketing and sales group to quote customer prices. Prepares the
distribution of accounts to the Sales Representatives and updates
the automated tracking system. Assist the sales organization
in providing customer application and product support for all
products in Spectra-Physics product line to customers contacting
Spectra-Physics via phone and/or internet. May initiate
post-sale contract renewal. Plans and implements various
projects that support the sales organization including supporting
tradeshows, managing Lasers price list, etc. Requirements:
B.A./B.S Optics, Mechanical Engineering, Physics, or Physical
Chemistry OR four years or more experience with lasers.
Familiarity with Physics/Engineering pertaining to lasers and their
applications required. Good phone communication skills
required, Customer Service experience preferred. Must
demonstrate professional speaking and writing skills. Good
customer service focus and analytical/problem solving abilities.
Ability to work within a team and to interface well with internal
and external customers. Basic computer skills, knowledgeable
in Word, Excel, Powerpoint, Internet Explorer and sales database
programs Pivotal and ASK. Please submit your resume to:
Resumes.mtnview@spectra-physics.com Reference job: 100650.
cathy.alexander@optics.arizona.edu
University of Arizona College of Optical Sciences
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