Publications 2015

1. "Influence of structural disorder on soft x-ray optical behavior of NbC thin films "
   Amol Singh, Mohammed H. Modi, P. Rajput, A.K. Sinha, G.S. Lodha
   J. Appl Phys. , 117, 175301 (2015).
   
   
2. "Study of structural and optical properties of zirconium carbide (ZrC) thin-films deposited by ion beam sputtering for soft x-ray optical applications"
   Amol Singh, Mohammed H. Modi, A.K. Sinha, R. Dhawan, G.S. Lodha
   Surface and Coatings Technology, Accepted (2015).
   
   
3. "Optical properties of zirconium carbide in 60-200Å wavelength region using reflectivity technique"
   Amol Singh, Mohammed H. Modi, G.S. Lodha
   Applied Optics, 54, 253 (2015).
   
   
4. "Evaluation of structural and microscopic properties of tetragonal ZrO2 for the facet coating of 980 nm semiconductor laser diodes"
   V.K. Dixit, A. Marathe, G. Bhatt, S.K. Khamari, K. Rajiv, R. Kumar, C. Mukherjee, C. J. Panchal, T. K. Sharma and S. M Oak
   J. Phys. D: Appl. Phys. 48 105102 (2015).
   
   
5. "Removal of carbon contaminations by RF plasma generated reactive species and subsequent effects on optical surface"
   P. K. Yadav, M. Kumar, S. K. Rai, M. H. Modi, J. A. Chakera, M. Nayak, P. A. Naik and G. S. Lodha
   AIP Conf. Proc. 1665, 080062 (2015)
   
   
6. "Study of NbC thin films for soft X-ray multilayer applications"
   Amol Singh, Mohammed. H. Modi, Parasmani Rajput, S. N. Jha and G. S. Lodha
   AIP Conf. Proc. 1665, 080008 (2015).
   
   

Publications 2014

1. "Analysis of higher harmonic contamination with a modified approach using a grating analyser "
   R.K. Gupta, Mohammed H. Modi, M. Kumar, J. A. Chakera, and G.S. Lodha
   Rev. Sci. Instrum., 85, 043107 (2014).
   
   
2. "Study of growth kinetics and depth resolved composition of a-SiNx:H thin films by Resonant Soft X-Ray Reflectivity at the Si-L2,3 edge "
   R. K. Bommali, M. H. Modi, S. Zhou, S. Ghosh and P. Srivastava
   Applied Surface Science, 305, 173-178 (2014).
   
   
3. "Structure and composition of zirconium carbide thin-film grown by ion beam sputtering for optical applications "
   Amol Singh, Mohammed H. Modi, Rajnish Dhawan, and G. S. Lodha
   AIP Conference Proceedings 1591, 869 (2014); doi: 10.1063/1.4872785
   
   
4. "Comparison of Mo/Si and NbC/Si lamellar multilayer gratings near Si absorption edge "
   Ankita Niranjan, Mohammed H. Modi, Amol Singh, Mourad Idir, and G. S. Lodha
   AIP Conference Proceedings 1591, 687 (2014); doi: 10.1063/1.4872720.
   
   
5. "Study on higher harmonic suppression using edge filter and polished Si wafer "
   R. K. Gupta, Amol Singh, Mohammed H. Modi, and G. S. Lodha
   AIP Conference Proceedings 1591, 988 (2014); doi: 10.1063/1.4872828
   
   

Publications 2013

1. "Study on effective cleaning of gold layer from fused silica mirrors using nanosecond pulsed Nd:YAG laser "
   Ambar Choubey, Amol Singh, M.H. Modi, B.N. Upadhyaya, G.S. Lodha, S.M. Oak
   Applied Optics, 52, 7540 (2013).
   
   
2. "Cleaning of Carbon Layer from the Gold Films Using a Pulsed Nd:YAG Las "
   Amol Singh, Ambar Choubey, Mohammed H. Modi, B.N. Upadhyaya, S. M. Oak, G.S. Lodha and S. K. Deb
   Applied Surface Science, 283, 612-616 (2013).
   
   
3. "A combined electron-ion spectrometer for studying complete kinematics of molecular dissociation upon shell selective ionization "
   K. Saha, S. B. Banerjee, and B. Bapat
   Rev. Sci. Instrum. 84, 073101 (2013).
   
   
4. "Three body dissociation of CS2+ 2 subsequent to various S(2p) Auger transitions "
   K. Saha,S. B. Banerjee, and B. Bapat
   THE JOURNAL OF CHEMICAL PHYSICS 139, 164309 (2013).
   
   
5. "Stability and normal incidence reflectivity of W/B4C multilayer mirror near the boron K absorption edge "
   P. N. Rao, S. K. Rai, M. Nayak, and G. S. Lodha
   APPLIED OPTICS 52, 6126 (2013).
   
   
6. "Chemical selective microstructural analysis of thin film using resonant x-ray reflectivity "
   Maheswar Nayak and G. S. Lodha
   Journal of Applied Physics, 114 023505 (2013).
   
   
7. "Restoration of absolute diffraction efficiency and blaze angle of carbon contaminated gratings by UV cleaning "
   M. Kumar, M. H. Modi, H. Singhal, S. Raja, J. Chakera, R.K. Gupta, P. A. Naik, G. S. Lodha, and P. D. Gupta
   APPLIED OPTICS 52, 1725 (2013)
   
   
8. "Thermal stability studies of ion beam sputter deposited C/B4C x-ray multilayer mirror "
   N. Pothana, M.H. Modi, S. Rai, V. Sathe, G.S. Lodha, S.K. Deb
   Thin Solid Films, 527, 244-249 (2013).
   
   
9. "Role ofradiativedecayofvalenceplasmonsintransmissionspectra of Si,SiNx and PET membranes "
   P.K. Yadav, R.K.Gupta, M.H.Modi, ShailendraKumar
   Solid State Communications 156, 12-15 (2013).
   
   
10. "Growth of Multilayer Optics for Synchrotron Radiation Sources "
    P N Rao, M Nayak, M H Modi, S K Rai and G S Lodha
    J. Phys.: Conf. Ser. 425 052023 (2013).
    
    
11. "Study on effective laser cleaning method to remove carbon layer from a gold surface "
    Amol Singh, A K Choubey, Mohammed H Modi, B N Upadhyaya and G S Lodha
    J. Phys.: Conf. Ser. 425, 152020 (2013).
    
    
12. "Role of valence plasmons in transmission of photons through mica membrane in energy range 10-40eV "
    P. K. Yadav, Shailendra Kumar, R. K. Gupta, M. H. Modi, Pragya Tiwari, G. S. Lodha, and S. K. Deb
    AIP Conf. Proc. 1512, 116 (2013).
    
    
13. "Analysis of soft x-ray/VUV transmission characteristics of Si and Al filters "
    Aby Joseph, Mohammed H. Modi, Amol Singh, R. K. Gupta, and G. S. Lodha
    AIP Conf. Proc. 1512, 498 (2013).
    
    

Publications 2012

1. “NbC/Si multilayer mirror for next generation EUV light sources”
   Mohammed H. Modi, S. K. Rai, Mourad Idir, F. Schaefers, G. S. Lodha
   Optics Express, 20, p 15114, (2012).
   
   
2. “Quantitative determination of higher harmonic content in the soft x-ray spectra of toroidal grating monochromator using a reflection multilayer”
   Mohammed H. Modi, R. K. Gupta, Amol Singh, and G. S. Lodha
   Applied Optics, Vol. 51, pp. 3552-3557 (2012).
   
   
3. “Study on effective laser cleaning method of carbon layer formed on optics surface”
   Amol Singh, A.K.Choubey, M.H.Modi, B.N.Upadhyay, G.S.Lodha
   Presented at the SRI-12 at Lyon France (2012).
   
   
4. “Growth of Multilayer optics for SR sources”
   P.N.Rao, M.Nayak, M.H.Modi, S.K.Rai and G.S.Lodha
   Presented at the SRI-12 at Lyon France (2012)
   
   
5. “Fabrication and evaluation of large area Mo/Si soft x-ray multilayer optics at Indus synchrotron facilities”
   P. N. Rao, M. Nayak, G. S. Lodha, S. K. Rai, A. K. Srivastava, M. H. Modi, and A. Sagdeo
   Advances in Optical Technology Vol. 2012, Article ID 976868, 8 pages (2012).
   
   
6. “Magnetron sputtering system for fabrication of x-ray multilayer optics”
   M. Nayak, P. N. Rao and G. S. Lodha
   AIP Conf. Proc. 1451, p 154 (2012).
   
   
7. “Probing spectroscopic like information using resonant scattering”
   M. Nayak and G. S. Lodha
   AIP Conf. Proc. 1451, p 55 (2012).
   
   
8. “Fabrication and evaluation of large area soft x-ray multilayer mirrors”
   P. N. Rao, M. Nayak, G. S. Lodha, S. Rai, A. K. Srivastava, M. H. Modi and A. Sagdeo
   AIP Conf. Proc. 1451, pp 151 (2012).
   
   
9. “Measurement of absolute diffraction efficiency of a variable line spaced grating using reflectivity beamline”
   M. Kumar, M. H. Modi, H. Singh, J. A. Chakera, R. K. Gupta, P. A. Naik, G. S. Lodha, and P. D. Gupta
   AIP Conf. Proc. 1447, pp. 687-688 (2012).
   
   
10. “Analysis of order contamination from toroidal grating monochromator of Indus-1 reflectivity beamline ”
    R. K. Gupta, Mohammed H. Modi, and G. S. Lodha
    AIP Conf. Proc. 1447, pp. 513-514 (2012).
    
    
11. “Application of multilayer mirror for harmonic analysis in soft X-ray region ”
    Mohammed H. Modi, R. K. Gupta, and G. S. Lodha
    AIP Conf. Proc. 1447, pp. 507-508 (2012).
    
    

Publications 2011

1. “Study of micro roughness parameters and growth characteristics of NbC/Si multilayer using layer by layer power spectral density analysis”
   Mohammed H. Modi, G. S. Lodha, M. Thomasset, and Mourad Idir
   AIP Proceeding 1349, 715, (2011).
   
   
2. “Effect of soft x-ray/VUV illumination on soft matter thin film”
   S. R. Naik, M. H. Modi, P. Pandit, G. S. Lodha, and A. Gupta
   AIP Proceeding 1349, 701, (2011).
   
   
3. “Si-rich a-SiNx:H thin film a prospective material for EUV lithography: An optical response near Si L2,3-edge”
   S.P. Singh, Mohammed H. Modi, and P. Srivastava
   AIP Proceeding 1349, 667, (2011).
   
   
4. “Qualitative estimation of Si-rich a-SiNx:H thin film composition by soft X-ray reflectivity analysis
   S. P. Singh, Mohammed H. Modi, and P. Srivastava”
   AIP Proceeding 1349, 665, (2011).
   
   
5. “Study of the optical response of Si-rich a-SiNx:H thin film near Si L2,3 -edge using soft x-ray reflectivity”
   S. P. Singh, Mohammed Hussein Modi and P Srivastava
   J. Phys. D: Appl. Phys. 44, 215501(2011) .
   
   
6. “Optical response near the soft x-ray absorption edges and structural studies of low optical contrast system using soft x-ray resonant reflectivity"
   M. Nayak, G. S. Lodha
   Journal of Atomic, Molecular and Optical Physics (2011).
   
   

Publications 2010

1. "Growth kinetics and compositional analysis of silicon rich a-SiNx:H film: A soft X-ray reflectivity study"
   S. P. Singh, Mohammed H. Modi and P. Srivastava
   Appl. Phys. Lett. Vol. 97, 2010 (In Press).
   
   
2. "Optical Properties of InP in the 50-200Å wavelength region"
   N. Pothana, Mohammed H Modi, G.S. Lodha
   Applied Optics 49, 5378 (2010).
   
   
3. "X-ray multilayer characterization using reflectivity beamline at Indus-1 "
   Mohammed H. Modi , T.T. Prasad, M. Nayak, N. Pothana, A. Jaiswal, S.K. Rai and G.S. Lodha
   AIP Proceeding 1234, 710, (2010).
   
   
4. "Resonant soft x-ray reflectivity as a sensitive probe to investigate polished zinc sulphide surface"
   Pooja Gupta, A K Sinha, Mohammed H Modi, S M Gupta, P K Gupta, S K Deb
   Applied Surface Science 257, 210 (2010).
   
   
5. "X-ray characterization of thin foil gold mirrors of a soft X-ray telescope for ASTROSAT Characterization of SXT mirrors by X-ray reflectivity"
   A. Sagdeo, S. K. Rai, G.S. Lodha1, K. P. Singh , N. Yadav, R. Dhawan, U. Tonpe, M. N. Vahi
   Experimental Astronomy, (2010).
   
   
6. "Probing porosity at buried interfaces using soft x-ray resonant reflectivity"
   M. Nayak, G. S. Lodha, T. T. Prasad, P. Nageswararao, and A. K. Sinha
   Journal of Applied Physics 107, 023529 (2010).
   
   
7. "Polarization dependence in non-resonant photo-triple-ionization of CO2"
   R K Kushawaha, S Sunil Kumar, I A Prajapati, K P Subramanian and B Bapat
   Journal of Physics B 42, 105201 (2009).

Ph.D Thesis

1. Study of growth, composition and optical properties of as-deposited and post treated a-SiNx:H thin films (Synopsis)
   Ravi Kumar Bommali
   Indian Institute of Technology, New Delhi July 2014.
   
   
2. Interface characterization of multilayer mirrors
   Sanjay Kumar Rai
   RRCAT, Homi Bhabha National Institute 2013.
   
   
3. Kinematical Analysis of Ionization and Fragmentation of Molecules(Synopsis)
   Koushik Saha, PRL Ahemedabad
   Mohanlal Sukhdia Uni. Udaipur, 2013.
   
   
4. Study of phase evolution, interfacial and optical properties of amorphous silicon nitride thin films(Synopsis)
   S.P. Singh,
   Indian Institute of Technology, New Delhi 2011.
   
   
5. Study of Fragmentation Dynamics of Polyatomic Molecules(Synopsis)
   Rajesh K Kushawaha
   Physical Research Laboratory Ahmedabad, 2009.
   
   
6. Theoretical & Experimental Studies In Atomic/Molecular Collisions With Photons & Charged Particles
   S Sunil Kumar
   Indian Institute of Technology Madras 2009.
   
   
7. Soft x-ray multilayer as Polarizing Elements: Fabrication and Studies on Surfaces and Interfaces (Synopsis)
   M. Nayak (RRCAT)
   Indian Institute of Science Bangalore 2007.
   
   
8. Study of Multilayer and Single Layer Systems for X-ray Polarizer and Physical Properties of Fe/Si multilayer
   Shyam Naik,
   Devi Ahilya University Indore 2007.
   
   
9. Surfaces and Interfaces Studies in X-ray Mirrors(Synopsis)
   M.H. Modi (RRCAT)
   Devi Ahilya University Indore 2005.
   
   

M.Tech Thesis

1. Studies on Optical Properties of High Density Diamond Like Carbon for UV-VUV- Soft X-Ray Mirror Coating Applications
   Kavita Soni, Devi Ahilya Vishwavidhyalaya, Indore (Guide: BN Rajasekhar) 2013-14.
   
   
2. Effect of Coating and Die Bonding On The Characteristics of 980 nm Quantum Well Laser Diode
   Archana Marathe, (Guide: VK Dixit), 2013-14.
   
   
3. Study of Transmission Filters for Soft X-Ray Applications
   Vimal Patidar, Rajasthan Technical University, Kota, (Raj.) (Guide: MH Modi), 2014.
   
   
4. Study Of Optical and Structural Properties of Thin Film Multilayer Using X-Ray Reflectivity & Total Electron Yield Technique
   Mamta Sinha, Birla Institute of Technology,Mesra (Ranchi)(Guide: MH Modi), 2014-15.
   
   
5. Kramers-Kronig Analysis of Soft X-ray Reflectivity Data
   Saurabh Sharma, GSITS Indore (Guide: MH Modi), 2014-15.
   
   
6. Optimization of Toroidal Grating Spectrometer for Energy Range 30-310ev
   Manoj Kumar, Guru Jambheshwar University Of Science And Technology, Hisar (Guide: M.H. Modi) 2015.
   
   
7. Optical Study of Emission Spectrometer for Soft X-Ray Energy Range 50-1500ev
   Anita, Guru Jambheshwar University Of Science And Technology, Hisar, (Guide: M.H. Modi) 2015.