• Atomic & Molecular Spectroscopy
• Analytical Spectroscopy
• Synchrotron based Spectroscopic research
• Optical design & Instrumentation for Spectroscopic and Reactor applications
• Photonics, Optical Interferometry and Coherence Tomography
• Thin film multilayers for Optical, X ray and Neutron beam applications
• Matrix Assisted Laser Desorption Ionization based Mass Spectrometry
Stoichiometric metal oxide cluster ions, (MO)n : M=Zn, Cd, Hg have been generated from solid group IIB-VIA semiconductor oxide targets with a pulsed UV laser whose photon energy (=355 nm, E=3.49 eV) is greater than their respective band gap. The cluster ions formed during laser vaporization process have been identified and characterized by a home built time of flight mass spectrometer (ToFMS). Figure 1 show the excitation scheme employed and the observed mass spectra of (ZnO)m, (CdO)m, (HgO)m cluster ions.
An indigenous near-infrared laser absorption spectroscopy based Heavy water trace analysis system has been developed in the laboratory. Since trace amount of heavy water readily reacts with
\r\nwater in surroundings, heavy water leak monitoring is based on measurement of HDO concentration
\r\nin air and water samples. The HDO absorption line at 7191.039 cm-1 is used in the monitoring system.
\r\nThe setup is based on off-Axis integrated output spectroscopy, for achieving high sensitivity
Atomic and Molecular Physics Division provides quality control assurance service to the other
\r\ndivisions like QAD and UED of this centre
Atomic Force Microscopy, UV-VIS-NIR Spectrophotometer
Spectro-chemical analysis of trace impurities such as B, Cd, Mn, Co, Ni, Cr and Mg
\r\npresent in reactor grade Uranium fuel samples: A service to QAD and UED
\r\nAtomic
Mass Range = 1-120,000 Da
\r\nResolution = 1 amu at 1000
\r\nSensitivity = Sub Femto mol
\r\nAnalyzes both positive and negative ions present in the ion source.
\r\nIdentified 7 neuro peptides for their extraordinary binding affinity for Ag+ and Cu+ which can be used as 64/67Cu carriers in Peptide Receptor Radionuclide Therapy.
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To cater to the large community of thin film and multilayer devices in various laboratories in India, a grazing incidence XAS (GIXAS) measurement facility has been developed at the Energy Scanning EXAFS beamline (BL-09),RRCAT , INDORE
Facility for X-ray magnetic circular dichroism measurements
Facility for in-situ monitoring of charging-discharging of Li-ion batteries
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Facility on EXAFS beamline for in-situ probing of heterogenous catalysis and photocatalysis
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Facility for in-situ EXAFS measurements in a flow-set up
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Suitable for depositing multilayer soft X-ray mirrors
Neutron supermirrors and supermirror polarizers are thin film multilayer based devices which are
\r\nused for reflecting and polarizing neutrons in various neutron based experiments. In the present communication,
\r\nthe in-house development of a 9 m long in-line dc sputtering system has been described
\r\nwhich is suitable for deposition of neutron supermirrors on large size (1500 mm × 150 mm) substrates
\r\nand in large numbers. The optimisation process of deposition of Co and Ti thin film, Co/Ti
\r\nperiodic multilayers, and a-periodic supermirrors have also been described. The system has been used
\r\nto deposit thin film multilayer supermirror polarizers which show high reflectivity up to a reasonably
\r\nlarge critical wavevector transfer of ∼0.06 Å−1 (corresponding to m = 2.5, i.e., 2.5 times critical
\r\nwavevector transfer of natural Ni). The computer code for designing these supermirrors has also been
\r\ndeveloped in-house.
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Photochemistry of molecules in excited states consequent of VUV photon absorption
\r\nOptical properties of materials and testing of photon detectors
\r\nPhotoabsorption studies of atoms, molecules and radicals in gas phase, condensed phase
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LIDT set up was designed and developed indigenously to measure laser induces damage threshold of multilayer devices and optical components. Damage onset is measured in terms of change in transmission/reflection and physical change in morphology of the area irradiated by the pump laser. Q-switched nano second Nd:YAG pulsed laser with all 5 harmonics is employed as pump laser in the set-up. He-Ne laser and fiber based spectrometers are used to probe damage onset. The current set-up is being upgraded to measure absorption in optical components/multilayers accurately and precisely.
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EB Coating Facility for the fabrication of multilayer thin film optical Devices
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Soft X-ray mirrors needs much higher thickness control since individual layers are sub-nm thick and roughness of the layers should be below 0.3 nm. To achieve this, ion beam sputtering (IBS) is the best technique since in IBS the energy of adatoms are high and so it gives compact films with bulk-like density and very low roughness
An Indegenous near-infrared laser absorbtion spectroscopy based Heavy water trace analysis system has been developed in the laboratory .Since trace amount of heavy water readily reacts with
\r\nwater in surroundings, heavy water leak monitoring is based on measurement of HDO concentration
\r\nin air and water samples. The HDO absorption line at 7191.039 cm-1 is used in the monitoring system.
\r\nThe setup is based on off-Axis integrated output spectroscopy, for achieving high sensitivity
A Matrix assisted laser desorption/ionization (MALDI) time of flight (ToF) mass spectrometer (MS) have been designed, developed, and performance tested for the analysis of inorganic, organic, and biological molecules of mass up to 120 kDa with sub picomole sensitivity. It can also analyze both the positive and negative ions formed during laser-matter interaction. In recent times, MALDI-TOFMS have also been employed for SARS-CoV2 (COVID-19) diagnosis in human saliva due to its high-sensitivity and high-specificity species identification through proteomic profiling.
Indus synchrotron complex in India is using a large number of synchrotron mirrors for different purposes in different experiments viz., for rejection of higher harmonics from the Synchrotron beam, for reducing the heat load on the monochromators etc. X-ray mirrors are available commercially from very few international sources and thus are extremely cost intensive. Also since these mirrors are exposed to very bright Synchrotron radiation with high heat load, there are distinct possibilities of damage in the coating. A comprehensive in-house facility for development of these hard X-ray mirrors with indigenous technologies therefore, would provide long-term support to the Synchrotron Radiation based programme of the country
IUE Is a common umbrella for utilization of experimental facilities that provides benefits of perfect synchronisation among various stages of an experiment and accurate processing of data with no human error factor
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A&MPD Divisional Structure
DIGITAL HOLOGRAPHIC MICROSCOPE (DHM)
