Tomorrow Today - A Laser Science Newsletter - Dec -2012
Tomor row Today - A Laser Science Newsletter ISSUE 1 LASER SCIENCE SERVICES (I) PVT. LTD. 1ST DECEMBER 2012 Laser Science Unveils its New Logo Laser Science Services (I) Pvt. Ltd. is pleased to ness.”Newly Launched Products: launch its new brand logo. “Our new logo is Apart from the new symbolic of the growth that we as a company logo, Laser Science is have achieved over the past 24 years,” said Dr. Fianium’s new WhiteLase also pleased to announce Lalit Kumar, MD, Laser Science Services (I) Pvt. UV the launch of their first Ltd. ever quarterly newslet- Dr. Lalit Kumar, Manag- Coherent Inc, USA ‘s “The center of the logo is now a sphere which ter. Dr. Kumar said “we ing Director, Laser Science Services (I) Pvt. Ltd. Vitara represents the depth of thank all the readers for Femto Lasers’ new genera- our service quality, the their support to our first edition of our monthly tion - CEP4 scope of our services and newsletter. Through this initiative, we aim to the 360 degree laser solutions that we provide. keep all customers and partners regularly up- Vytran’s CAS-4100 and This sphere is surrounded by an intense laser dated with the latest news at Laser Science and CAS-4100P beam which is representative of our core busi- the most recent offerings by our principals.” Sacher Lasertechnik’s new Lynx S-3 system Spectroscopy: Femtosecond Laser Measures Atmospheric -Radical Traces in Antarctica A femtosecond laser, the Chameleon Ultra II Ti:Sapphire lasers, and made by Coherent (Santa Clara, CA), was can readily reach the part of a recent study at a French Antarctic relatively short 676 nm base to measure key traces of molecular spe- wavelength fundamental, cies such as iodine monoxide (IO) and bro- necessary for frequency- mine monoxide (BrO)—at the parts per tril- doubling to the 338 nmInside this issue: lion (ppt) level by optical absorption. Al- wavelength region whereLaser Science now repre- 2 though the proportion of these free radicals is BrO strongly absorbs.sents Hinds Instruments nearly 12 orders of magnitude lower than ‘A femtosecond laser A full summary of this (Coherent Chameleonand Vytran, exclusively that of air molecules at low altitudes, they are study is yet to be pub- Ultra II) is carried by found to have a significant effect on atmos- helicopter on its way to anBringing Tomorrow’s 2 lished, however re- arctic lab where it becomesTechnology to Indian pheric oxidation chemistry as a result of their searchers have reported part of a mode lockedLabs Today high reactivity—even at trace concentra- preliminary findings in- cavity spectroscopy absorp- tion - enhanced (ML- tions. volving observations of CEAS) setup used to meas-Fun Zone: Did You 2 The Chameleon Ultra II was chosen for this IO peaks during the pe- ure trace molecules in the atmosphere.’ (courtesy ofKnow? study primarily due to its rugged construc- riod between a storm Coherent Inc) tion and ability to withstand harsh atmos- and the period of actualCoherent, Inc. Acquires 3 pheric conditions. In addition, it performs snow-fall. Nitrogen dioxide trace concentra-Innolight GmbH and efficiently over a very wide range of operat- tions were also monitored and were found toMiDAZ Ltd ing temperatures and is relatively immune to show a strong dependence on wind direction instability due to any feedback reflections with visible peaks occurring when the air massResearch Article 3 that might occur from coupling the laser to was coming from the direction of the station. the resonant detection cavity. This laser also has a wider tuning range than most other
TOMORROW TODAY- A LASER SCIENCE NEWSLETTER Laser Scie nce re pre se nts Hinds Instruments and Vytran, exclusively in India Hinds Instruments, Inc., a leading supplier of polarization measurement technology, has named Laser Science Services (I) Pvt Ltd, Mumbai, as its exclusive dealer and representative for all products in India. Hinds Instruments, Inc. is a world leader in Neocera PLD Chamber with Coherent Excimer Laser (L) and Terahertz System from Rainbow Photonics (R) developing and supplying polarization meas- urement technology for a broad range of Bringing Tomorrow’s Technology to Indian Labs Today applications. With 40+ years of polarization measurement experience, Hinds Instruments metrology solutions are proven tools for Over the past 24 years Laser Science Services (I) Pvt. Ltd has successfully in- both R&D lab and production environments. stalled several new systems in Indian labs, which are the first of their kind instal- lations in the country. In addition to this, Laser Science is now also the exclusive representative of Vytran, The most recent of these was the first Terahertz System from Rainbow Photon- in India. ics, Switzerland which was set up at IIT Bhubaneshwar in October 2012. Vytran was formed in 1989 and it is a lead- Others include the first complete PLD system based on Neocera PLD Chamber ing company offering one of the industry’s (Pioneer120 UHV) and Coherent Excimer Laser (Compex Pro 205), which was most comprehensive portfolios of precision installed at IACS, Kolkata in May 2012. fiber splicing and glass processing equip- In December 2010, Laser Science installed the very first Amplified CEP System ment used in R&D and manufacturing set- from Femtolasers Produktions GmbH, at TIFR, Mumbai. The product featured tings. Vytran’s current product portfolio was FemtoPower Compact CEP, 1mJ, 1KHz. includes fully integrated workstations and individual tools for every step of the proc- This was followed by a subsequent installation of the second system in December ess, from fiber stripping to proof testing. 2011 at IISER Mohali. The product this time was a 2mJ amplified system. DID YOU KNOW: Interesting Facts About Laser s DID YOU KNOW? though, more like tanks for shooting down incoming missiles. 1. The scientifically accurate principle behind a laser was originally described as ‘light oscillation by simulated 4. A laser beam cannot emission of radiation’. However, this leads to the acro- be seen in vacuum, nym ‘LOSER’. Consequently, the word ‘oscillation’ since there must was replaced by ‘amplification’ and the laser got its exist fine particles name, as we know it today. in its path to scatter the light and make 2. The strength of early lasers was measured in Gillettes. it visible to us. By Futuristic weapons and phasers used in space Interestingly enough, this corresponded to the number — as shown in star trek the same logic, of Gillette razor blades a beam could puncture. contrary to what we see in sci-fi movies such as Star 3. Laser technology is being widely developed for use in Trek, a laser beam would not be visible in space either, warfare. The US and Israeli military ‘Tactical High since space is made up of less than 5% ordinary matter. Energy Laser’ has successfully shot down targets in test 5. LASIK eye surgery, which relies heavily on the use of runs. They’re not hand-held, Star Trek-style devices, lasers, has successfully cured nearly 17 million people all over the world, since it’s inception in 1990. This tech- PAGE 2 nique can accurately correct permanent refractive errors of the eye without any significant side effects.
ISSUE 1R e se a r ch Ar t i c l e: Intense Two -Cycle Laser Pulses InduceTime-Dependent Bond Hardening in a Polyatomic MoleculeThe use of lasers to image and control complex TMS is an organic tetrahedral molecule akin tochemical reactions has long been an intense methane but with a central Si atom that is bondedpursuit of contemporary molecular physics. In to four methyl (CH3) groups. Unlike methane,recent times, the availability of lasers with the ionization of TMS is known not to produce theability to produce few-cycle pulses and now parent molecular ion: [(CH3)4Si]+ it quickly disso- The CEP-3 stabilized amplifiereven attosecond pulses is gradually beginning to ciates into the fragment, (Si(CH3)3)+ because of from Femtolasers Produktionsallow time-dependent nuclear and electron the Jahn-Teller effect. The study has in a way, GmbH, installed at the TIFR lab, by Laser Science.dynamics to be efficiently probed. Work done "defeated" the Jahn-Teller effect by ionizing TMSin the field, has to this point focused on real- using intense 2-cycle pulses as mentioned previ-time mapping of wave packets in small mole- ously. With their pulse duration being less than “Two-cycle lasercules such as hydrogen ions. However similar the vibration period of the Si–C bond, the studystudies on polyatomic molecules are addition- was able to find that TMS now exhibits its parent pulses from the CEP-ally complicated by distortion effects and can- molecular ion, TMS+, with yield levels up to 10% 3 stabilizednot be probed effectively through traditional of the [TMS-CH3]+ ion. At pulse durations longeranalysis techniques such as mass spectroscopy. than 100 fs, the TMS+ signal again disappears. amplifier allow theIn their study, K.Dota et. al report for the first The results are significant as they demonstrate the researchers totime, on the direct observation of a time- optical generation of polyatomic ions that aredependent bond hardening process in a polya- otherwise inaccessible. This work opens new effectively probe atomic molecule, namely tetramethyl silane avenues for optical control of molecular dynamics(TMS) with the use of two-cycle laser pulses in strong, ultrashort laser fields. CEP (carrier previouslyfrom a CEP-3 stabilized amplifier*. The use of envelop phase) effects are being further explored unobservedthis system suppresses traditional Jahn-Teller by this group using similar techniques.distortion effects and allows for the production phenomenon inof a stable yet previously unobserved polyatomicTMS+ phase. Ref: “Intense Two-Cycle Laser Pulses Induce Time-dependent bond Hardening in a Polyatomic Molecule” - K.Dota, molecules”*This study uses the CEP-3 stabilized amplifier from Fem- M . G a r g , A . K T i w a r i , J. A. D h a r m a d h i k a r i ,tolasers Produktions GmbH, supplied to this research divi- A.K.Dharmadhikari, and D.Mathur, PRL, 108, 073602sion in TIFR, Mumbai by Laser Science Services (I) (2012)Pvt. Ltd.Coherent, Inc. Acquires Innolight GmbH and MiDAZ LtdNovember 1, 2012: Coherent, Inc has acquired the businesses of efficient designs. The combination of Innolight’s semiconduc-Innolight Innovative Laser and Systemtechnik GmbH and MiDAZ tor based architecture with MiDAZ amplifiers is anticipated toLasers Ltd, which together provide core technology building blocks deliver a broad range of compact, low cost sub-nanosecondfor an emerging class of commercial, low cost, sub-nanosecond IR, green and UV laser sources, offering best in class perform-pulsed lasers for micro-electronics manufacturing. ance, value and footprint.Innolight is a leading manufacturer of low power, short pulse lasers “The acquisition of Innolight and MiDAZ fits well into Co-for industrial applications like silicon processing, and ultra-stable herent’s mission of providing cutting edge solutions to bothcontinuous wave lasers used in demanding scientific applications like industrial and scientific markets” states Mark Sobey, Execu-atom trapping. The patented MiDAZ technology enables simple tive Vice President at Coherent.amplifiers to be incorporated in a broad range of laser productsdelivering power scaling and long lasting performance in electrically SOURCE: Coherent, Inc. PAGE 3
LASER SCIENCESERVICES (I) PVT. LTD. Incepted in 1988 by Dr. Lalit Kumar, Laser Science is In- A-454, TTC Industrial Area dias premier distributor of lasers and spectroscopy instru- MIDC, Mahape, Navi Mumbai 400 710 ments. Our range of products covers scientific and indus- Phone: 91-22-41553232 trial laser systems, spectroscopy, microscopy & imaging Fax: 91-22-2778 1672 systems. We distribute over 30 major brands that are repu- E-mail: firstname.lastname@example.org table global market leaders in their respective fields. Our www.laserscience.co.in 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. BRINGING TOMORROW’S TECHNOLOGY TODAYNewly Launc hed ProductsFianium introduces the new WhiteLase Femtolasers Announces Its New Genera-UV, the world’s first UV-enhanced super- tion Carrier Envelope Phase Stabilization-continuum fiber laser. CEP4The unique WhiteLase UV provides a spectrum 8th May 2012: The CEP4 approach is packaged infrom below 390nm to beyond 2400nm enabling a compact and robust module available together with the FEMTOSOURCE™ rainbow™ oscilla- Fianium’s new WhiteLase UVan even wider range of applications from a singlelaser source offering up to total 3W power a tor. The latter generates the shortest opticalMHz repetition rate. pulses commercially available with highest qual- ity, stability, and reproducibility.Coherent Inc, USA Offers Laser Expand-ing in Wavelength Higher Power - The Vytran launches CAS-4100 and CAS-4100P,OBIS Family. the new generation, compact, semi- auto- mated splicers.On 24th January 2012 Coherent launchedthe new OBIS 405 nm 200 mW, OBIS 473 nm CAS-4100 and 4100P produce high-strength,75 mW, and OBIS 488 nm 150 mW, the newest consistent splices, quickly and efficiently. Theyaddition to the OBIS family of smart lasers. can be used to splice standard and specialty fibers Coherent’s New Hands free Short from 80 microns in diameter. All CAS systems Pulse Oscillator-Vitara.Coherent Inc, USA announces its New feature Vytran’s One Step Splice™ process soft-Hands free Short Pulse Oscillator-Vitara. ware to make fiber splicing and process controlCoherents more than 10 years experience with simple and user friendly.one-box femtosecond oscillators like the Vitesse Sacher Features the All-New Lynx S-3 Sys-and Micra led to the development of an oscilla- tem— Next Generation Tunable Diode.tor-Vitara which offers true hands-free and fullyautomated operation from a sealed box even for Ultra-stable monolithic device without any com-demanding applications that require pulse widths promises, the all-new Lynx S-3 system is a highly Sacher’s next generation tunableshorter than 12 fs. stable laser system which is insensitive against diode: Lynx S-3 System thermal or acoustic disturbances.