1. Laser Science Celebrates 25years of Service in India
Newly Launched Prod-
ucts:
 Coherent’s new Flare
series
 Coherent, Inc. USA ‘s
SapphireTM lasers.
 Semrock’s 11-band filter
 New PCO.dimax high
speed cameras.
 Femtolasers Produktions’
MOSAIC™ OS
Inside this issue:
Addressing Future In-
dustrial Needs - Beneq
2
Fun Zone: Did You
Know?
2
Excimer Laser Treat-
ment for Superior Diesel
Engines
3
Newly Launched Prod-
ucts
4
Bringing Tomorrow’s Technology to Indian Labs
Laser Science has recently made two new installa-
tions in India, at the National Physical Laboratory
(NPL) in Delhi and the Indian Institute of Science
Education and Research (IISER) in Kolkata.
At NPL, Laser Science has installed a 35 fs, 1KHz
Regenerative Amplified Laser system coupled with
Optical Parametric Amplifier (OPA) from Coher-
ent Inc, USA. The oscillator “Micra” is a one box,
tunable broad-bandwidth oscillator integrated with
the DPSS laser Verdi. The output of this oscillator is
> 350 mW @ 800 nm with an adjustable band-
width of <30 nm to > 100 nm and peak tunability
of 760 nm to 850 nm (30 nm bandwidth).
The oscillator output is seeded to the “Legend
EliteF HE+-II-USP” amplifier pumped with Evo-
lution-30, a 20 mJ @ 1 KHz, 250 ns 527 nm
DPSSL KHz pump laser. The output of the regen-
erative amplifier is 4 mJ @ 1 KHz centered around
800 nm with a pulse width of <35 fs.
The TOPAS OPA offers a wavelength tunability
from 190 nm to 2600 nm, thus covering the deep
UV to NIR with an output pulse duration of ~60 fs
while the pulse width is measured by the short pulse
autocorrelator model, PulseCheck, from APE.
At IISER Kol-
kata, Laser Science
has installed a 60 fs,
250 KHz Regenera-
tive Amplified Laser
system coupled with
an OPA from Coher-
ent Inc, USA. The
oscillator “Mantis” is
a one box, broad-
bandwidth (70 nm)
oscillator with an
integrated pump la-
ser, providing a fixed
wavelength output of
> 400 mW at 800
nm.
The oscillator output is seeded to a 250 KHz short-
pulsed (~60 fs) amplifier “RegA 9050” with > 6 µJ
energy. Repetition rate is variable from 1 KHz up to
300 KHz. The output of the amplifier is split into two
beams to pump two short-pulse OPA’s, i.e. OPA
9450 & 9850, which extends the wavelength coverage
of RegA into visible & infrared spectral range.
L A S E R S C I E N C E S E R V I C E S ( I ) P V T . L T D .
MAY 2013
ISSUE 2
Laser Science Services (I) Pvt. Ltd, is pleased to
announce that this year, 2013, marks the comple-
tion of 25years of its service to the scientific and
industrial community in India.
Laser Science started the celebration of its silver
jubilee year in March 2013, by holding the annual
meeting for all members of the LS family, in Naini-
taal, a gorgeous hill station in Uttarkand, in the
North of India.
These celebrations were continued in Mahape,
Navi Mumbai with the opening of the new Laser
Science office on the second floor of the LS build-
ing in April 2013. The inauguration of the new
office was done by performing a small havan - an
Indian ritual performed in order to spread positiv-
ity at the beginning of anything new.
Dr. Lalit Kumar, Founder and
managing director, Laser Sci-
ence, fondly recalls his journey
of the past 25 years. “The last 25
years of my life have been an
exciting journey, building Laser
Science to get it to where it is
today. I started LS partnering
with Coherent Inc. and I am
happy and thankful that this asso-
ciation continues till date. Simi-
larly I am thankful to all my principals, customers,
the Indian scientific community and most impor-
tantly my entire team at Laser Science, for their
immense hard-work, dedication and unwavering
support,” he said.
System installed at IISER, Kolkata
Dr. & Mrs. Lalit
Kumar at the
inauguration of the
new office, at
Mahape, Navi
Mumbai
Tomorrow Today
- A Laser Science Newsletter
System installed at NPL, Delhi

2. Beneq, based in Finland, is a leading sup-
plier of production and research equip-
ment for thin film coatings, as well as one
of the world’s premier manufacturers and
developers of thin film electroluminescent
(TFEL) displays.
Beneq thin film equipment is used for sub-
micron thick coatings in photovoltaics,
organic electronics, glass strengthening,
and other emerging thin film applications.
Improving the efficiency of CIGS
solar cells
The Beneq TFS 1200B is the first ALD system capable of handling real-sized thin film
PV module substrates. It is not just size but also throughput that makes this system ideal
for PV production: for a panel of size 1200 × 1600 (mm) onto which a 50 nm thick Zn(O,S) buffer layer is deposited, the TFS
1200B can reach a throughput of 60 panels per hour, translating into approximately 140 MWp/year.
Enhancing the endurance of organic electronics
Beneq is pioneering the use of ALD in the organic and printed electronics industry by offering an equipment portfolio spanning
from laboratory to industrial production. Beneq can offer customers the capability to size-up from 200 × 200 (mm) rigid substrate
sized R&D systems to Gen5 industrial systems. Considering the fact that interest towards flexible substrates has increased substan-
tially in recent years, the introduction of Roll-to-Roll ALD, another Beneq first, does not come as much of a surprise. Beneq’s
WCS 500 is capable of coating 400,000 m²/year at a web width of 500mm.
Addressing Future Industrial Needs - Beneq
DID YOU KNOW: Interesting Facts About Lasers
PAGE 2
TOMORROW TODAY
- A LASER SCIENCE NEWSLETTER
DID YOU KNOW?
1. When NASA invented the Curiosity Rover, which
successfully landed on Mars last August, it opened
up a new chapter in space exploration: the use of
laser-based instruments to probe the surface com-
position of other planets. Otherwise known as the
Mars Science Laboratory (MSL), the rover which
weighs nearly a ton, was designed to be a labora-
tory on wheels, capable of performing sophisti-
cated analyses on the red planet’s rough terrain.
2. ‘Light Touch’ is an interactive projector that in-
stantly transforms any flat surface into a touch
screen, allowing users to interact with multimedia
content using multi-touch technology. Light
Touch uses ‘holographic laser projection’ technol-
ogy, which creates bright, high-quality video im-
ages in WVGA resolution. Integrated infrared
sensors detect motion and turn the projected
image into a 10.1” virtual touch screen, so
the user can control the projector and inter-
act with applications by simply touching the
image.
3. In the field of forensic sciences, bullet trajec-
tory laser rods are used to improve precision
and save time. These rods are used to deter-
mine the exact point of origin and distance
from which a gun was fired, or in the case
where more than one person may have been
shooting, the exact original location and
trajectory angle of each bullet fired.
4. Spectroscopy, which involves the analysis of
materials by studying how they reflect and
absorb light, can be used for
the identification of traces of substance resi-
dues such as accelerants, illegal drugs, or
poisons, in forensic science. Infrared laser
spectroscopy is used to detect explosive
components or illegal drugs in samples.
Beneq holds the world record in substrate size coated
with ALD with this 1200 × 1200 (mm) glass sub-
strate coated with a Zn(O,S) buffer layer for CIGS
solar cells. Subsequently, capability to handle 1200 ×
1600 (mm) size substrates has been developed.
NASA’s Curiosity Rove
r used the Mars Hand
Lens Imager (MAHLI)
to capture 55 high-
resolution images,
which were stitched
together to create this
full-color self-portrait.
Coatings enabled by Beneq ALD are present in many
different kinds of products, from solar cells to flexible
electronics.

3. -ogy of laser treated cylinders at the microscopic
scale. They also took a section from the upper part
of one of the cylinders from a TDI engine after 800
hours of running time. This cross-section was com­
positionally analyzed by TEM (transmis­sion elec-
tron microscopy).
Analysis of the SEM and TEM results indicates that
UV laser nitridation produces three effects that
contribute to wear reduction. First, the surface is an
­nealed to a depth of about 2 µm, allowing overall
smoothing of the surface. Second, the process cre-
ates a hard nitrogen-rich surface layer, which is still
present even after 800 hours of engine operation.
And, perhaps most important, the laser creates a
micro-hydrodynamic structure due to opening the
graphite lamellae.
These spaces act as tiny
wells that capture the
lubrication oil, result-
ing in a unique tri-
bological effect.
Mechanical honing
creates a surface topol-
ogy characterized by
myriad microscopic
grooves. These act as
interlinked microchan-
nels, allowing oil to
escape as the ring
moves over the liner
surface. In contrast,
the new process cre-
ates tiny wells that are
isolated and success-
fully trap the oil. The
ring and liner are thus
prevented from con-
tact by riding on these
tiny droplets, resulting
in micro-hydrodynamic lubrication.
Lasers are already well established tools in many
aspects of automotive manufacturing. Previously,
their primary benefit has been to lower production
costs through increased process speed, automation,
and consistency. These results for excimer-laser-
based nitridation of diesel cylinder liners indicate
their important role as the industry strives for ever
“greener” cars.
The friction between the piston rings and iron
cylinder liners in diesel engines can account for up
to 60% of the total engine frictional loss. Reduc-
ing this friction can improve fuel efficiency and
decrease long-term wear, which can reduce oil
consumption and particulate emissions.
In this context, engineers at Coherent, SMS
Elotherm, and Audi AG have jointly developed a
new laser-based technique for treating the surface
of diesel cylinder liners that produces unique low-
friction surface conditions. Wear tests at Audi
have proven the usefulness of this ultraviolet laser
nitridation process, which may have important
implications for future diesel development.
The new process is quite different from the exist-
ing use of infrared lasers for surface hardening,
and is based on an ultraviolet excimer laser and
nitrogen-assist gas. The short wavelength 308nm,
high-energy photons from the excimer laser inter-
act directly with the inter-atom­ic bonds that bind
materials together, thus allowing the atoms to
move freely.
In the laser nitridation process, an engine block is
positioned in a purpose-built workstation incor-
porating an excimer laser - the Lambda SX high
power excimer laser series. Beam-delivery optics
direct the beam at the cylinder wall and scan the
wall along the length of the cylinder. The engine
block is rotated during the process to expose the
entire inner surface of the cylinder liner. A nitro-
gen-assist gas is applied during laser irradiation.
Extensive testing was conducted on a four-
cylinder turbodiesel direct injection (TDI) en-
gine displacing 1.9 L. Additional studies were
performed on a V6 diesel engine. The four-
cylinder TDI engine was run on dynamic test
beds for 602hours using standard endurance
protocols designed to simulate multiple duty
cycles.
In addition, wear tests were conducted under
constant rpm conditions at several different
rpm values. Engine performance was moni-
tored throughout all these tests. To understand
how the laser treatment causes improvements,
engineers also took SEM (scanning electron
microscopy) images to examine the surface topol-
Excimer Laser Treatment for Superior Diesel Engines
PAGE 3
ISSUE 2
An excimer laser based work-
station, shown here schemati-
cally, was custom-built for the
laser nitridation process used
on engine block liners.
Scanning electronic microscope photographs of liner surface
topography show (left) surface after conventional mechanical
honing - note criss-crossing groove texture; and (right) the same
surface after excimer laser treatment.
Article Courtesy: Ralph
Delmdahl, Burkhard
Fechner, Coherent
GmbH, Germany

4. A-454, TTC Industrial Area
MIDC, Mahape, Navi Mumbai 400 701
Phone: 91-22-41553232
Fax: 91-22-2778 1672
E-mail: sales@laserscience.in
www.laserscience.co.in
Incepted in 1988 by Dr. Lalit Kumar, Laser Science is In-
dia's premier distributor of lasers and spectroscopy instru-
ments. Our range of products covers scientific and indus-
trial laser systems, spectroscopy, microscopy & imaging
systems. We distribute over 30 major brands that are repu-
table global market leaders in their respective fields. Our
extensive customer coverage includes R&D institutions and
commercial & industrial organizations all over India.
Our strategic focus is on continuously exceeding customer
expectations, a commitment to quality, proactive market
development and providing the most superior quality cus-
tomer service.
Headquartered in Navi Mumbai , Laser Science has regional
sales offices in Chennai, Delhi & Kolkata.
L A S E R S C I E N C E
S E R V I C E S ( I ) P V T . L T D .
with Steep Edges Within a 100nm Wide Spec-
tral Window.
The filter has high transmission and exceptional
blocking characteristics outside each of the eleven
bands. The unmatched spectral complexity of this 11
-band filter was designed specifically to match the
corresponding formaldehyde fluorescence emission
spikes over the 380-480nm wavelength range. The
filter can be utilized in investigating homogeneous
charge compression ignition (HCCI) type combus-
tion processes.
PCO Expands its PCO.dimax High Speed Se-
ries by Two New Models
Both cameras will be available as monochrome ver-
sions with the following resolutions and frame rates:
pco.dimax HS2: 5469 fps @ 1400 x 1050 pixel
pco.dimax HS4: 2277 fps @ 2000 x 2000 pixel
Femtolasers Produktions GmBH launches
Octave spanning GDD module MOSAIC™ OS
MOSAIC™ OS can support pulse durations below 4
fs. The employed dispersive mirrors exhibit high
reflectance over a bandwidth of 600 nm between 400
nm and 1000 nm and controlled group delay disper-
sion (GDD) over more than one optical octave, be-
tween 450 nm and 960 nm.
The New Flare, a Compact, Pulsed Laser
from Coherent, Inc.
The Flare series provides a superior and cost-
effective alternative to older gas lasers and first-
generation solid-state lasers for life sciences and
instrumentation applications. It has three wave-
length versions available - near infrared (1064
nm), green (532 nm) and ultraviolet (355 nm).
Specifically Flare’s shorter pulsewidth (< 2 ns
versus 4 ns for the N2 laser) translates directly
into superior time of flight (ToF) resolution. Its
higher pulse repetition frequency of 1 kHz (versus
<100 Hz for a N2 laser) reduces data acquisition
times by an order of magnitude.
Coherent, Inc. Introduces a New Series of
Sapphire™ Lasers
A new series of Sapphire™ lasers, at 594 nm are
ideal for fluorescence-based applications in life
sciences. Based on Coherent’s unique optically
pumped semiconductor laser (OPSL) technology,
these new Sapphire™ 594 lasers offer superior
performance, reliability, efficiency and value
compared to older technologies.
Semrock Proudly Announces the Produc-
tion of the World’s First 11-band Filter
Newly Launched Products
B R I N G I N G T O M O R R O W ’ S T E C H N O L O G Y T O D A Y
Coherent’s new FLARE
series of lasers
Femtolasers Produktions’
MOSAIC™ OS
PCO.dimax high speed
series