Publications & Projects

Year 2015

1. Ankit Singh, Khem B. Thapa and Narendra Kumar : Analysis and design of optical biosensors using one dimensional photonic crystals, OPTIK- International Journal for light and electron Optics, 126 (2015) 244.

2. N. K. Singh, Anjani Kumar, D. Kumar, S. Shukla: Study of photoelectrical properties of Se90Ag10 amorphous Thin films, J. Appl. Phys. Sci.Inter. Research (2015) In press.

Year 2014

1. A. Dixit and P. S. Dobal, Transition Metal Carbide Nanoparticles and Their Applications in Recent Developments in Biotechnology Vol. 10: Nano Biotechnology edited by Dr. A. Kumar, Studium Press LLC, USA , 391-411 (2014).

Year 2013

1. G. N. Pandey, Khem B. Thapa and S. P. Ojha: Omni-directional reflection bands in one-dimensional plasma dielectric photonic crystals OPTIK-International Journal for light and electron Optics, Vol. 124, pp. 3396-3401, (2013)

2. B. K. Singh, Khem B. Thapa and P. C. Pandey, Optical reflectance and omni-directional bands gap in Fibonacci quasicrystals type 1D multilayered structure containing exponentially graded material Optics Communications, Vol. 297, pp. 65-73, (2013)

3. Neeraj Kumar, Khem B. Thapa and S. Khalid, Comparison of AI technique and conventional control techniques applied in series active power filter for voltage harmonic reduction for power electronic converters International Journal of Advance Research in Science and Engineering, Vol. 02, Issue No. 03, pp. 155-159 (2013)

4. Khem B. Thapa, Prabal P. Singh, Praveen C. Pandey and Sant P. Ojha Dispersion and transmittance characteristics of one dimensional magnetic photonic crystal composed with single negative materials OPTIK- International Journal for light and electron Optics, Vol. 124, pp. 6631-6635, (2013)

5. Narendra Kumar and Khem B. Thapa Photonic crystals in optical computing would offer a dramatic enhancement of operational speed: A Review Annals of Mathematical Physics, Vol. 05, pp. 19-30, (2013)

6. Sanjay Srivastava, Ritesh Kumar Kushwaha and Khem B. Thapa Study of highly broadening photonic band gaps extension in one dimensional metallo-organic multilayer structure IOSR Journal of Applied Physics, Vol. 05, pp. 32-48, (2013)

7. G. N. Pandey, Khem B. Thapa and S. P. Ojha Frequency Dependence Effective Refractive Index of Meta-Materials by Effective Medium Theory Advance in Electronics and Electric Engineering, Vol. 03, pp. 179-184, (2013)

8. P Shukla, S K Dwivedi, Anju Dixit, and P. S. Dobal, effect of Annealing Temperature on Sol-gel Grown TiC Nano Particles, International Journal of Engineering Research & Technology (IJERT) 73-74, 2013.

9. Prabhat Shukla, Shivendra Jaiswal, Anju Dixit, P. S. Dobal Synthesis and Characterization of Titanium Carbide for Fuel Cell Applications, Proceedings of the National Conference on Recent Advances In Condensed Matter Physics, Eds. A. Kumar, S. Chand, Excellent Publishers New Delhi (2013). pp 19-21.

Year 2012

1. S. Shukla and S. Kumar, Optical Characterization of Se85-xTe15Znx thin films, PRAMANA, 78 (2012) 309.

2. S. Shukla and S. Kumar, Effect of Zinc incorporation on the density of defect states in a-Se85Te15 Glassy Alloy, Turkish Journal of Physics, 36 (2012) 261.

3. K. Gupta, S. Srivastava and Khem B. Thapa, Temperature dependent ultrasonic study in scandium antimonite semiconductor E-Journal of Chemistry, Vol. 09, pp.1400-1406, (2012)

4. Abhishek Pandey, Khem B. Thapa, Rajendra Prasad and K. P. Singh General Regression Neural Network and Radial Basis Neural Network for the Estimation of Crop Variables of Lady Finger Journal of the Indian Society of Remote Sensing, Vol. 40, pp. 709-715, (2012)

Year 2011

1. G. N. Pandey, Khem B. Thapa, Sanjay K. Srivastava and S. P. Ojha Existence of negative dispersion and band gap in a helically inner cladded annular circular waveguide, OPTIK-International Journal for light and electron Optics, Vol. 122, pp. 1201-1206, (2011),

2. R. Srivastava, Khem B. Thapa, S. Pati and S. P. Ojha, Reply to comment on “Negative refraction in 1D photonic crystal” Solid State Communications (Elsevier), Vol. 151, pp.579-581, (2011)

3. Khem B. Thapa, Sanjay Srivastava, Alka Vishawkarma and Sant P. Ojha Tunneling properties of electromagnetic slab superconducting material, Optoelectronics Letters (Springer), Vol. 07, pp.277-281, (2011)

4. Khem B. Thapa, Prabal P. Singh, Narendra Kumar and Sant P. Ojha, Band structure and transmission characteristics of one dimensional photonic crystal composed with single negative materials Journal of Optoelectronics and Advanced Materials, Vol. 13, pp.786-791, (2011)

5. Ram Janma, R. Jatan, Shishu Pal Singh, P. Dwivedi,V. Dwivedi, Vivek Singh ”The effect of Double cladding on Dispersion Characteristics of a Lemniscate type Optical Waveguide”. Accepted, 2011 ( India)

6. Ram Janma, Shishu Pal Singh, Ram Jatan, B.D. Singh, Vivek Singh “Dispersion Curves of a W-type plasma loaded Optical Fiber Waveguide”. Accepted 2011 (India).

7. Ram Jatan, R. Janma, Shishu Pal Singh, P. Dwivedi, V. Dwivedi, Vivek singh ”The effect of Double cladding on Dispersion Characterstics of a Lemniscate type optical Waveguide, Solid State Nuclear Track Detectors and Their Applications (SSNTD- 17), 17-19 October, 2011, India

8. S. Shukla and S. Kumar, Effect of Sb incorporation on the density of defect states in a-Se90In10 Glassy Alloy, Indian Journal of Pure & Applied Physics, 49 (2011) 545.

9. S. Shukla and S. Kumar, Study of non ohmic behavior in thin film of Ge40SbxTe60-x glassy alloys, International Journal of Basic and Applied Research, 1 (2011) 12

10. N. Sharma, S. Shukla, J. Sharma and S. Kumar, Temperature and Composition Dependence of Photoconductivity in Amorphous Se80-xTe20Cdx Thin Films, Journal of non-oxide glasses, 3 (2011) 121.

11. S. Shukla and S. Kumar, Determination of Optical Constants and Optical Band Gap in Ge40SbxTe60-x Thin Film, International Journal of Advances in Pharmaceutical Analysis, 1 (2011) 10

12. S. Shukla and S. Kumar, Photoconductivity and high field effects in amorphous Se83Te15Zn2 thin film, Bulletin of Material Science, 34 (2011) 1351

Year 2010

1. S. Shukla and S. Kumar, Effect of Sb incorporation on the dark conductivity and photoconductivity of Se75In25 glassy alloy thin films, Physica B, 405 (2010) 4307.

2. S. Shukla and S. Kumar, Effect of Cu incorporation on the optical parameters of Se75Te25 thin film, Journal of Optoelectronic & Advanced Materials, 12 (2010) 1696. S. Shukla and S. Kumar, Electrical Transport in Thin Films of Glassy Ge40Te60-xSbx Alloys, Semiconductor Physics Quantum Electronics & Optoelectronics, 13 (2010) 422.

3. Ram Janma, Shishu Pal Singh, Ram Jatan, Vivek Singh “Modal Analysis and Cutoff Condition of a Circular Doubly Clad Optical Waveguide with Plasma in inner Cladding Region” Int. J. of Infrared, Millimeter and Terahertz Waves. Vol. 31, Pages , 1382-1389, 1.9. 2010 (USA).

4. G. N. Pandey, Khem B. Thapa and S. P. Ojha; Reflection properties of one dimensional magnetic photonic crystal, Journal of Ovonic Research, Vol. 06(02), pp. 87-92, (2010)

5. Khem B. Thapa, Sanjay Srivastava and Sarika Tiwari, Enlarge photonic band gap in heterostructure of metallic photonic and superconducting photonic crystals,Journal of Superconductivity and Novel Magnetism (Springer), Vol. 23, pp.517-525, (2010)

6. Khem B. Thapa, Alka Vishawkarma, Rajesh Singh and S. P. Ojha, Electromagnetic wave propagation in a single negative index material, Journal of Ovonic Research, Vol. 06(03), pp. 105-115, (2010)

7. Khem B. Thapa, Rajesh Kumar and Alok K. Gupta Resonant tunneling properties of one dimensional photonic crystal containing negative refractive index materials, Journal of Optoelectronics and Advanced Materials, Vol. 12 (8), 1670-1675, (2010)

8. Khem B. Thapa, Anubha Gupta and S. P. Ojha, Abnormal behavior of periodic structure, a. Journal of Ovonic Research, Vol. 06(04), pp. 165-171, (2010)

9. Khem B. Thapa, Praveen C. Pandey and Sarika Singh, A complete band gap in one dimensional photonic crystal containing meta- materials,Optoelectronics and Advanced Materials-Rapid Communications, Vol. 04 (7), 909-915, (2010)

Year 2009

1. Vijayraj Singh, Anju Dixit, D.C. Agrawal and Ashish Garg, Synthesis and Characterization of Multiferroic BiFeO3 Thin Films Prepared by Chemical Solution Deposition Method, Indian Journal of Engineering and Materials Science, 15 (104) 2009.

2. Pramod S Dobal and Anju Dobal, Synthesis and characterization of 1-x SrBi2Ta2O9-x Bi3TiTaO9 Materials, Proceedings National Conference on Recent Advances in Condensed Matter Physics, May23-24, 2009, NIT Hamirpur, Eds. A. Kumar, S. Chand, Excel India Publishers (2009).pp 182-187.

3. S. Shukla and S. Kumar, Photoconductivity and high field effects in amorphous Se75In10Sb15 thin film, Chalcogenide Letters, 6 (2009) 695.

4. R. Janma, R. Jatan, S.P. Singh, P. Dwivedi, V. Dwivedi, Vivek Singh: “Modal analysis of a doubly clad optical waveguide having a cross-section of the shape of a Lemniscate” Int. J. of Infrared Millimeter and Terahertz waves. Vol. 30, , Pages 1012-1019, 2009 (USA).

5. R. Janma R. Jatan, S.P. Singh, P. Dwivedi, V. Dwivedi, Vivek Singh:”Modal Analysis and Cutoff Frequencies of a Doubly Clad Cardioidic Waveguide”. Journal of Optic Research Vol. 12, Page 155-166 (USA)

6. Khem B. Thapa, N. K. Mishra, G. N. Pandey, and S.P.Ojha, Enhanced Absorption in Periodic One-Dimensional Metallic-Organic Periodic Structure Progress In Electromagnetics Research-M, PIER-M, Vol. 8, pp.221-233, (2009)

7. Khem B. Thapa, Thesis “Optical Properties of Photonic Crystals”, Indian Science Abstracts, ISSN: 0019-6339, Vol. 45, 05139 (2009) (www.niscair.res.in/sciencecommunication/AbstractingJournals/isa/isa2k9/isa_16mar09.asp#PHY)

8. Khem B. Thapa, P. C. Pandey S. K. Singh and S.P.Ojha. Omni-directional bands in one-dimensional multilayered structure containing exponentially graded materials,Journal of Mordern Optics, Vol. 56, pp.1309-1315, (2009)

9. Khem B. Thapa, Rahul Pandey, P. C. Pandey and S. P. Ojha ,Ultrafast switching property in one dimensional defect photonic crystals Proceedings of the International Conference on Emerging Trends in Electronic and Photonic Devices & Systems (ELECTRO-2009), (http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?asf_arn=null&asf_iid=null&asf_pun=5436188&asf_in=null&asf_rpp=null&asf_iv=null&asf_sp=null&asf_pn=1) Digital Library IEEE Explore, pp. 508-510, (2009)



Seminars / Conferences / Symposiums / Workshops:

Year 2015

1. Transmittance of periodic Structure containing Non-lossy and lossy Media (Poster), Prabal P. Singh, Khem B. Thapa, Vishal Singh Chandel, 3RD NATIONAL CONFERENCE ON CHALLENGES & OPPORTUNITIES FOR TECHNOLOGICAL INNOVATION IN INDIA-2015(COTII-2015), A.I.M.A.T., Lucknow, (u.p.) INDIA,

Year 2014

1. Verification of MN Rule in dark as well as in Presence of Light in a-Se90In4Sb6 Thin Films, S. Shukla, Anjani Kumar and S. Kumar, 59th DAE-Solid State Physics Symposium, December-2014, VIT University, Vellore

Year 2013

1. Effect of Zn incorporation on the optical properties of thin films of Se85Te15 glassy alloy, S. Shukla and S. Kumar, 57th DAE-Solid State Physics Symposium, December-2012, I. I.T. Bombay, Mumbai., [Reference: Solid State Physics AIP Conf. Proc., 1512 (2013) 552.]

2. Optical characterization of a-Se85-xTe15Znx thin films, S. Shukla and S. Kumar, 7th National Conference on Thermophysical Properties, October-2013, CSJM University, Kanpur.

Year 2012

1. Role of Metallic Additives in the Electrical Properties of Some Binary Glassy Semiconductors, S. Shukla, Anjani Kumar and S. Kumar, 58th DAE-Solid State Physics Symposium, December-2013, Thapar University, Patiyala. [Thesis Presentation], 2012

Year 2011

1. Role of Sb additive in the optical properties of a-Se90In10 thin films, S. Shukla, S. P. Singh and S. Kumar, All India Conference on “Recent Trends in applied Physics” (AICON’12), Jan., 2012,Chhatrapati Shivaji Institute of Technology, Durg, 2011

2. Effect of Sb incorporation on the dark and photoconductivity of thin films of Se75In25 glassy alloy, S. Shukla and S. Kumar, 55th DAE Solid State Physics Symposium, December-2010, Manipal University Manipal, [Reference: Solid State Physics AIP Conf. Proc., 1349 (2011) 513.]

3. Effect of In Additive in the Density of Defect States in Se85Te15& a-Se75Te25 Thin Films , N. Sharma, S. Shukla, S. P. Singh and S. Kumar, 55th DAE Solid State Physics Symposium, December-2010, Manipal University, Manipal, [Reference: Solid State Physics AIP Conf. Proc., 1349 (2011) 623.]

4. Role of Sb incorporation on the dark and photoconductivity of thin films of Se90In10 glassy alloy, S. Shukla, S. P. Singh and S. Kumar, 16th National Seminar on Physics and Technology of Sensors (NSPTS-16), Feb.-2011, Lucknow University, Lucknow.

5. Effect of Sb incorporation on the density of defect states in a-Se90In10 Glassy Alloy, S. Shukla, S. P. Singh and S. Kumar, International Conference on Advances in Condensed & Nano Materials (ICACNM-2011), Feb.-2011, Panjab University, Chandigarh.

Year 2010

1. Effect of Sb incorporation on the optical properties of a-Se75In25 thin film, S. Shukla and S. Kumar, National conference on Thermo Physical Properties (NCTP-2011), October-2011, Banaras Hindu Univ., Varanasi, 2010

2. Study of non ohmic behavior in thin film of Ge40 Sb2Te58 glassy alloy , S. Shukla, S. P. Singh and S. Kumar, National conference on Simulation and Characterisation of Advanced Materials (SICHAM),April-2010, MJPR University, Bareilly.

3. Optical characterization of a-Se85-xTe15Znx thin films, S. Shukla and S. Kumar, 4th International conference INDIAS 2010, September-2010, University of Allahabad, Allahabad.

4. Electromagnetic Wave Propagation through the Dielectric-Chiral Periodic Structure, Khem B. Thapa, P. C. Pandey & S. P. Ojha, 97th Indian Science Congress-2010, January 3-7, 2010 Thiruvananthapuram

5. Tunneling properties of one dimensional photonic crystals containing magnetic negative material, Khem B. Thapa, Pratistha Mishra, Sanjay K. Srivastava and Prabal P. Singh, PHOTONICS-2010, IITD, Guhwati, INDIA

6. Defect modes in one dimensional ternary photonic crystal (TPC) (Poster), Prabal P. Singh, Rahul pandey, and Khem B. Thapa, NATIONAL CONFERENCE ON ADVANCEMENT OF NANO-MATERIAL AND ITS APPLICATIONS-2010, DAV College, Kanpur, INDIA

7. A Monto Carlo Lattice Model for Chain Diffusion in Dense Polymer System (Poster), Prabal P. Singh, J. Narain, Ved & prakash, NATIONAL CONFERENCE ON ADVANCEMENT OF NANO-MATERIAL AND ITS APPLICATIONS-2010, DAV College, Kanpur, INDIA

Year 2009

1. Photonic band gaps in periodic chiral layers, Khem B. Thapa, K. S Singh and S. P. Ojha, ICFP-2009, Kathmandu, Nepal

2. Photon tunnelling through one-dimensional photonic crystals containing negative refractive index media, Rajesh Kumar, Khem B. Thapa and Alok K. Gupta, NSRP-18 2009, Udaipur, Rajasthan, INDIA

3. Enhancement of optical gain near the band edge of a one-dimensional photonic band gap structure, G. N. Pandey, Arun Kumar Khem B. Thapa and S. P. Ojha, IWPSD-2009, Delhi, INDIA

4. Omni-directional reflection properties of one dimensional superconductor photonic crystals, Anubha Gupta and Khem B. Thapa , International Conference of Optics and Photonics (ICOP)-2009, CSIO, Chandigarh, INDIA

5. Effect of Cu incorporation in the optical properties of a-Se75Te25 & a-Se85Te15Thin Films, S. Shukla and S. Kumar, All India Conference on “Recent Trends in applied Physics” (AICON’09), Feb., 2009,Chhatrapati Shivaji Institute of Technology, Durg.

6. Role of Ge in the Density of Defect States in a-Se75Te25 & a-Se85Te15Thin Films, S. Shukla, N. Sharma, A. Kumar and S. Kumar, All India Conference on “Recent Trends in applied Physics” (AICON’09), Feb., 2009, Chhatrapati Shivaji Institute of Technology, Durg.

7. Composition Dependence of Photoconductivity in Amorphous Se85-xTe15Znx Thin Films, S. Shukla, M. Mishra, N. Sharma and S. Kumar, 54th DAE Solid State Physics Symposium, December-2009, M. S. University of Baroda, Vadodara.






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