Books

       IN REFEREED JOURNALS (In inverse chronological order)

               Many of the PREPRINTS are available online at the LANL ArXiv. Just send me an email if you need any  that are not online.  

Submitted manuscripts
119. Mondeep Saikia, K.V. Srivastava, S. Anantha Ramakrishna, "Broadband polarization insensitive time modulated frequency selective surface", (Submitted, 2020)
118. Nitish Kumar Gupta, Harshwardhan Wanare, and S. Anantha Ramakrishna, "Design of transparent conducting plasmonic metasurfaces and theory of impedance matched metamaterials" (Submitted, 2020)
117. Abhinav Bharadwaj, Gaganpreet Singh, J. Ramkumar, K.V. Srivastava and S.A. Ramakrishna "Polarization Insensitive Double Complementary Layer Absorber" (Submitted, 2019)
116. Jitendra K. Pradhan, Dheeraj Pratap, and S.A. Ramakrishna, "Thin nanoporous anodic alumina films on aluminium for passive radiative cooling" (Submitted, 2019)


Published in 2020
115. Jitendra K. Pradhan, Venu Gopal Achanta, Amit K. Agarwal, and S. Anantha Ramakrishna," Performance enhancement due to a top dielectric coating on a metamaterial perfect absorber" Applied Optics 59 (17), pp. E118-E125 (2020)
114. Rajesh Kumar, Anjani Kumar Tiwari, S. Anantha Ramakrishna, " Surface plasmon coupling for selectively enhanced random lasing in periodically patterned silver columnar thin films", Applied Physics Letters (In Press, 2020)
113. Abhinav Bharadwaj, K.V. Srivastava and S.A. Ramakrishna, "Propagation of Wave in a cylindrical waveguide filled with Hyperbolic Negative Index Medium " Microwave Optical Technology Letters. 1–6. (online, 2020) https://doi.org/10.1002/mop.32460
112. Abhinav Bhardwaj, Dheeraj Pratap, Mitchell Semple, Ashwin K. Iyer, A.M. Jayannavar, S.A. Ramakrishna, "Properties of waveguides filled with anisotropic metamaterials", Comptes Rendus Physique (French Academy of Sciences) (In Press, 2020)
111. Nitish Kumar Gupta(1), Harshawardhan Wanare(1,2), S. Anantha Ramakrishna, "Broadband Emissivity Engineering in Optically Transparent Thermal Metamaterials by Regulation of Plasmonic Resonances", Asian Journal of Physics (Special Issue in honour of Prof. Kehar Singh) (In Press, 2020)
110. Y. Tayde, Kajal Chaudhary, Gaganpreet Singh, Ayushi Dhumal, Mondeep Saikia, K.V. Srivastava, J. Ramkumar and S.A. Ramakrishna, "An Optically Transparent and Flexible Microwave Absorber for X and Ku bands application", Microwave Optical Technology Letters 64, (5), pp. 1850-1859 (2020)
109. Kajal Chaudhury, J. Ramkumar, S.A. Ramakrishna, K.V. Srivastava, Praveen C. Ramamurthy, "Optically transparent protective coatings for ITO coated PET based microwave metamaterial absorbers" IEEE Trans. Components, Packaging and Manufacturing Technology 10 (3), pp. 378-388 (2020)
108. Raghwendra Kumar, S. Anantha Ramakrishna, "A simple metamaterial absorber associated with Fano-like resonance" Journal of Nanophotonics 14 (1), Art. No. 016011 (2020)


Published in 2019
107. Mondeep Saikia, K.V. Srivastava and S.A. Ramakrishna, "Frequency Shifted Reflection of Electromagnetic Waves Using a Time-modulated Active Tunable Frequency Selective Surface" IEEE Transactions on Antennas and Propagation (Accepted, 2019)
106. G. Singh, H. Sheokand, K. Chaudhary, K.V. Srivastava, J. Ramkumar and S. Anantha Ramakrishna, "Fabrication of non-wettable wearable textile based metamaterial microwave absorber" Journal of Physics D: Applied Physics 52, Art. No. 385304 (2019
105. Saleem Shaik, Anjani Kumar Tiwari, and S. Anantha Ramakrishna, "Refractive index sensor based on gold-coated nanoporous anodic alumina membranes to discriminate alcohol mixtures," Pramana-Journal of Physics 93 (30). https://doi.org/10.1007/s12043-019-1793-4 (2019)
104. Abhinav Bharadwaj, K.V. Srivastava and S.A. Ramakrishna, "Enhanced coupling of light from subwavelength sources into a hyperbolic metamaterial fiber" IEEE Journal of Lightwave Technology 37 (13), pp. 3064-3072 (2019)
103. Shashank Sharma, Vijay Mandala, S.A. Ramakrishna, and J. Ramkumar, Numerical simulation of melt pool oscillations and protuberance in pulsed laser micro melting of SS304 for surface texturing applications" Journal of Manufacturing Processes 39 pp. 282–294 (2019)
102. Rajesh Kumar, Faraz Ahmed, Anh Ly, Carlo Bradac and S.A. Ramakrishna,"Silver columnar thin films based efficient nano-antennas for enhanced emission from nitrogen-vacancy centers in nanodiamonds", Physical Review: Applied Physics 11, Art. No. 034002 (2019)
101. H. Sheokand, Gaganpreet Singh, S. Ghosh, J. Ramkumar, S.A. Ramakrishna and K.V. Srivastava " An optically transparent broadband microwave absorber based on interdigital capacitance" IEEE Antennas and Wireless Propagation Letters 18 (1), pp. 113-118 (2019)
100. Gaganpreet Singh, H. Sheokand, S. Ghosh, J. Ramkumar, K.V. Srivastava and S.A. Ramakrishna, “Excimer Laser Micromachining of Indium Tin Oxide for Fabrication of Optically Transparent Metamaterial Absorbers", Applied Physics A 123, (1), Art. No. 23 pp. 14 (2019)


Published in 2018
99. Yakeen Tayde, Mondeep Saikia, K.V. Srivastava and S.A. Ramakrishna,"Polarization insensitive, broad-band multi-layered absorbers using screen-printed patterns of resistive ink", IEEE Antennas and Wireless Propagation Letters 17, No. 12, pp. 2489-2493 (2018)
98. Jitendra Pradhan and S.A. Ramakrishna, "Bi-layered nano-composite cermet thin films for band-selective infrared absorption", J. Phys. D: Appl. Phys. (In Press, 2018)
97. Raghwendra Kumar, Amit K. Agarwal, S.A. Ramakrishna, ,"Development of metamaterial structure for large area surfaces with specified infrared emissivity", Optical Engineering (SPIE) 57(8), Art. No. 087109 (2018)
96. S. Sharma, V. Mandal, S.A. Ramakrishna and J. Ramkumar, "Numerical simulation of melt hydrodynamics induced hole blockage in quasi-CW fiber laser micro-drilling of TiAlV₄", Journal of Materials Processing Technology 262, 131-148 (2018)
95. S.A. Ramakrishna and A.M. Jayannavar, "How long does a quantum particle or wave stay in given region of space?", Resonance 759 (July, 2018)
94. Anjani K. Tiwari, S. Shaik and S.A. Ramakrishna, "Lasing in dye-infiltrated nanoporous anodic alumina membranes", Applied Physics B 124 (1), 127 (2018)
93. Raghwendra Kumar and S.A. Ramakrishna, "Enhanced infra-red transmission through plasmonic subwavelength holes embedded with dielectric micro-domes", J. Phys. D : Appl. Phys. 51 Art. No. 165104 (2018)
92. Lalruatfela Renthlei, S. Anantha Ramakrishna and Harshawardhan Wanare, "Cloaks for suppression or enhancement of scattering of diffuse photon density waves" Pramana J. Physics 91, 1 (2018)
91. Dheeraj Pratap, Abhinav Bharadwaj and S.A. Ramakrishna, "Inhomogeneously filled, cylindrically anisotropic metamaterial optical fiber" J. Nanophotonics (SPIE) 12, Art. No. 033002 (2018)
    
    Published in 2017
90. A.K. Tiwari, S. Guddala, I. Mekaaoui-Alaoui and S. A. Ramakrishna, "Enhanced visualization of latent fingermarks on rough aluminium surfaces using sequential Au and Zn/ ZnS/ ZnO depositions" Journal of Forensic Science, DOI: 10.1111/1556-4029.13686 (online, 2017)
89. Bharathi Rajeswaran, Jitendra K. Pradhan, S.A. Ramakrishna and A.M. Umarji, Thermochromic VO₂ thin films on ITO substrates for broadband high absorption at infra-red frequencies", J. Appl. Phys. 122, Art. 163107 (2017)
88. H. Sheokand, S. Ghosh, Gaganpreet Singh, M. Saikia, K.V.Srivastava, J. Ramkumar and S.A. Ramakrishna, Transparent broadband metamaterial microwave absorber based on resistive films ", J. Appl. Phys. 122, 105015 (2017)
87. L. Renthlei, H. Wanare and S.A. Ramakrishna, "Photon density wave resonances of amplifying inhomogeneities in a random medium" J. Opt. Soc. Am. B 34, No. 7, pp. 1386-1391 (2017)
86. J.K. Pradhan, G. Behera, Amit K. Agarwal, A. Ghosh, S.A. Ramakrishna, "Cermet based metamaterials for multi band absorbers over NIR to LWIR frequencies", J. Phys. D: Appl. Phys. 50, Art. No. 245104 (2017)
85. J.K. Pradhan, S.A. Ramakrishna, B. Rajeswaran, A.M. Umarji, A.V. Gopal, A.K. Agarwal and A. Ghosh, "High contrast switchability of VO₂ based metamaterial absorbers with ITO ground plane", Optics Express, 25, No. 8, pp. 9116-9121 (2017).
84. Raghawendra Kumar and S.A. Ramakrishna, "Microstructuring by two-photon polymerization using a sub-nanosecond laser" , Current Science 112, (8), pp. 1668 - 1674 (2017)


Published in 2016
83. Sriram Guddala and S.A. Ramakrishna, "Optical limiting by nonlinear tuning of resonance in metamaterial absorbers", Opt. Lett. 41, pp. 5150-5154 (2016)
82. Abhinav Bhardwaj and S. A Ramakrishna, “Focusing properties of a spherical perfect lens with eccentric deformations”, J. Opt. Soc. Am. B 33, Issue No. 9, pp. 2000-2009 (2016)
81. Prince Gupta, S. A. Ramakrishna, and H. Wanare, “Strong coupling of surface plasmon resonances to molecules on a gold grating”, J. Optics (IoP, UK) 18, Art. No. 105001 (2016)
80. Jhuma Dutta, S.A. Ramakrishna and A. Lakhtakia, “Characteristics of surface plasmon-polariton waves excited on 2D periodically patterned columnar thin films of silver" J. Opt. Soc. Am. A 33, Issue 9, pp. 1697-1704 (2016)
79. J.G. Pollock, Ashwin K. Iyer, D. Pratap and S.A. Ramakrishna, "A class of circular waveguiding structures containing cylindrically anisotropic metamaterials: applications from RF/microwave to optical frequencies" J. Appl. Phys 119, Art. No. 083103 (2016)
78. Gangadhar Behera and S.A. Ramakrishna, “Polarization dependent enhanced infrared transmission through complementary nanostructured gold films”, J. Optics (IoP, UK) 18 055103 (2016)
77. Syed Nadeem Akhtar, Shashank Sharma, S.A. Ramakrishna, J. Ramkumar, "Excimer laser micromachining of oblique microchannels on thin metal films using square laser spot", Sadhana: Acad. Proc. Engg. Sc. DOI 10.1007/s12046-016-0500-0 (2016)
76. Sriram Guddala, D. Narayana Rao and S.A. Ramakrishna, "Resonant enhancement of Raman scattering in metamaterials with hybrid electromagnetic and plasmonic resonances", J. Optics (IoP, UK) 18, 065104 (2016)
75. Gangadhar Behera and S.A. Ramakrishna, “Tri-layered composite plasmonic structure with a nanohole array for multiband enhanced absorption at visible to NIR frequencies: plasmonic and metamaterial resonances”, J. Phys. D: Appl. Phys. 49, Art. No. 075103 (2016)


Published in 2015
74. M. Arya, S. Khandekar, Dheeraj Pratap and S.A. Ramakrishna, "Pool boiling of water on nanostructured microwires at sub-atmospheric conditions", Heat Mass Transfer (Springer),DOI 10.1007/s00231-015-1692-2 (2015).
73. Gangadhar Behera, Prasanta Mandal, and S. Anantha Ramakrishna, "Complementary layer pairs of plasmonic ladder-like structured films: Fabrication and Visible-NIR properties" J. Appl. Phys. 118, Art. No. 063104 (2015)
72. Jhuma Dutta and S.A. Ramakrishna, "Reconfiguring gratings of slanted plasmonic nanocolumns by ion beam irradiation", Nanotechnology 26 , Art. No. 205301 (2015).
71. Lalruat Fela Renthlei, H. Wanare, S.A. Ramakrishna, Enhanced photon density wave propagation in random amplifying media, Phys. Rev. A 95, Art. No. 043825 (2015) arXiv:1311.5985
70. Dheeraj Pratap, S. A. Ramakrishna, J.G. Pollock, Ashwin K. Iyer, Anisotropic metamaterial optical fibers Optics Express 23, pp. 9074-9085 (2015) ArXiv:1411.7779
69. Sriram Guddala, Raghwendra Kumar, S.A. Ramakrishna, "Thermally Induced Nonlinear Optical Absorption in Metamaterial Perfect Absorbers", Appl. Phys. Lett. 106, 111901 (2015) arXiv:1501.00351
68. N. Rameshwari, Govind Dayal, S.A. Ramakrishna, R. Bharathi and A. Umarji, "Thermally switchable metamaterial with a VO₂ ground plane" , Opt. Commun. 346, pp. 154-157 (2015)
67. S. Nadeem Akhtar, Shashank Sharma, Govind Dayal, S.A. Ramakrishna and J. Ramkumar, “Microfeature edge quality enhancement in excimer laser micromachining of metal films by coating with a sacrificial polymer layer", J. Micromech. Microeng.(IoP, UK) 25, Art. No. 065001 (2015)
66. Govind Dayal and S.A. Ramakrishna, Flexible Metamaterial Absorbers with multi-band infrared response J. Phys. D: Appl. Phys. 48, Art. No. 035104 (2015)
65. Jhuma Dutta, S.A. Ramakrishna, A. Lakhtakia, Asymmetric coupling and dispersion of surface-plasmon-polariton waves on a periodically patterned anisotropic metal film J. Appl. Phys. 117, 013102 (2015)


Published in 2014
64. F. Guenneau, S. Chakrabarti, S. Guenneau and S.A. Ramakrishna, Origami with negative refractive index to generate super-lenses, J. Phys.: Condens. Matter 26, Art. No. 405303 (2014)
63. Dheeraj Pratap, Prasanta Mandal and S.A. Ramakrishna, Plasmonic properties of gold coated nano-porous anodic alumina with linearly organized pores, Pramana J. Phys. 83, pp. 1025–1033 (2014) DOI: 10.1007/s12043-014-0824-4.
62. Govind Dayal and S.A. Ramakrishna, Multipolar localized resonances for multi-band metamaterial perfect absorbers , J. Opt. (IoP, UK), 16, Art. No. 094016 (2014)
61. Govind Dayal and S.A. Ramakrishna, Broadband infrared metamaterial absorber with visible transparency using ITO as ground plane , Opt. Express 22, pp. 15104-15110 (2014)
60. Gangadhar Behera and S.A. Ramakrishna, Enhanced broadband transmission through structured plasmonic thin films for transparent electrodes, J. Nanophoton. (SPIE) 8, Art. 083889 (2014)
59. S. N. Akhtar, J. Ramkumar, Hirendra Choudhary and S.A. Ramakrishna, Simulation and experiments on excimer laser micromachining of metals and polymer, J. Micro/Nanolithography, MEMS, and MOEMS (SPIE), 13, 013008 (2014)


Published in 2013
58. Prasanta Mandal, S.A. Ramakrishna, Raj Patil, and Achanta Venu Gopal, Polarization dependent color switching by extra-ordinary transmission in H-slit plasmonic metasurface , J. Appl. Phys. 114, 224303 (2013)
57. Sanchit K. Singh, Sameer Khandekar, Dheeraj Pratap and S. Anantha Ramakrishna, Wetting dynamics and evaporation of sessile droplets on nano-porous alumina surfaces, Colloids and Surfaces A: Physicochemical and Engineering Aspects 432, pp. 71–81 (2013); DOI: dx.doi.org/10.1016/j.colsurfa.2013.04.070
56. Govind Dayal and S.A. Ramakrishna, Design of multi-band Metamaterial Perfect Absorbers with stacked metal-dielectric disks , J. Opt. (IoP, UK) 15, Art. No. 055106 (2013)
55. Jhuma Dutta, S.A. Ramakrishna and A. Lakhtakia, Blazed gratings of periodically patterned columnar thin films, Appl. Phys. Lett. 102, Art. No. 161116 (2013) arXiv:1209.5264
54. Govind Dayal, S. A. Ramakrishna, S.N. Akhtar and J. Ramkumar, Excimer laser micro-machining using binary mask projection for large area structuring with single micron features, J. Micro- Nano-Manufacturing (ASME) 1, Art. No. 031002 (2013).
53. Yan Liu, S. Guenneau, B. Gralak and S.A. Ramakrishna, Focussing light in a bianisotropic slab with negatively refracting materials, J. Phys.: Condens. Matter 25, Art. no. 135901 (2013)
52. Jhuma Dutta, S.A. Ramakrishna and I. Mekkaoui Alaoui, Fingerprint visualization enhancement by deposition of columnar thin films and fluorescent dye treatment, Forens. Sci. Int. 228, 32–37 (2013)
51. Govind Dayal and S.A. Ramakrishna, Metamaterial saturable absorber mirror, Opt. Lett. 38 272-274 (2013).


Published in 2012
50. Arash Farhang, S.A. Ramakrishna and O.J.F. Martin, Compound resonance-induced coupling effects in composite plasmonic metamaterials, Opt. Express 20, 29448-29456 (2012)
49. Prasanta Mandal, Prince Gupta, Amitabh Nandi and S.A. Ramakrishna, Surface enhanced fluorescence and imaging with plasmon nearfields in gold corrugated gratings, J. Nanophoton. 6, 063527 (2012)
48. Prasanta Mandal, Amitabh Nandi and S.A. Ramakrishna,Propagating surface plasmon resonances in patterned two dimensional gold-grating templates and surface enhanced Raman scattering, J. Appl. Phys. 112, 044314 (2012)
47. Govind Dayal and S.A. Ramakrishna, Design of highly absorbing metamaterials for Infrared frequencies, Opt. Express 20, 17503-17508 (2012)


Published in 2011
46. S. Chakrabarti and S.A. Ramakrishna, Magnetic Response of Split Ring Resonator Metamaterials: from effective medium dispersion to photonic bandgaps, Pramana - J. Phys. 78, 483-492 (2012)
45. S. Anantha Ramakrishna, P. Mandal, K. Jeyadheepan, N. Shukla, S. Chakrabarti, M. Kadic, S. Enoch and S. Guenneau, Plasmonic interaction of visible light with gold nano-checkerboards, Phys. Rev. B 84 , 245424 (2011)
44. A. Shahin, Y.M. Joshi and S.A Ramakrishna, Interface Induced Anisotropy in Jammed Aqueous Laponite Suspensions, Langmuir, 27, 14045-14052 (2011)
43. P. Mandal and S.A. Ramakrishna, Dependence of surface enhanced Raman scattering on the plasmonic template periodicity, Opt. Lett. 36, pp. 3705 - 3707 (2011)
42. Muamer Kadic, S. Guenneau, S. Enoch, and S.A. Ramakrishna, Plasmonic Space Folding: Focusing Surface Plasmons via Negative Refraction in Complementary Media, ACS Nano, 5, pp. 6819 - 6825 (2011); arXiv:1011.4470v1


Published in 2010
41. Sangeeta Chakrabarti, S.A. Ramakrishna and H. Wanare, Controlling metamaterial resonances with light, Phys. Rev. A 82, Art. no. 029903 (2010).
40. A. Lakhtakia and S.A. Ramakrishna, Narrowband enhancement of the circular Bragg phenomenon by stimulated Raman scattering, J. Opt. 12, Art. no. 085101 (2010)
39. Lipsa Nanda, H. Wanare and S.A. Ramakrishna, Time moments of the energy flow of optical pulses in highly dispersive media, J. Phys. B: At. Mol. Opt. Phys. 43, Art. no. 0555503 (2010)


Papers published during 2004-2009
38. Sangeeta Chakrabarti, S.A. Ramakrishna and H. Wanare, Switching a plasmalike metamaterial via embedded resonant atoms exhibiting electromagnetically induced transparency, Opt. Lett. 34, pp. 3728-3730 (2009)
37. S.A. Ramakrishna and A. Lakhtakia, Spectral shifts in the properties of a periodic multilayered stack due to isotropic chiral layers, J. Opt. A - Pure Appl. 11, Art. no. 074001 (2009)
36. S. Guenneau and S.A. Ramakrishna, Negative refractive index, perfect lenses and checkerboards: Trapping and imaging effects in folded optical spaces, Comptes Rendus Physique (Paris), 10, 352-378 (2009)
35. Lipsa Nanda, H. Wanare and S.A. Ramakrishna, Why do superluminal pulses become subluminal once they go far enough?, Phys. Rev. A 79 Art. No. 041806 (2009)
34. Sangeeta Chakrabarti, S.A. Ramakrishna and H. Wanare, Coherently Controlling metamaterials, Opt. Express 16, 19504-19511 (2008)
33. Sangeeta Chakrabarti and S.A. Ramakrishna, Design of metallic metamaterial structures at high frequencies , J. Nonlinear Opt. Phys. Mat. 17 143-158 (2008)
32. Lipsa Nanda and S.A. Ramakrishna,"Time for Pulse traversal through dispersive slabs of negative (ε, μ) materials", Phys. Rev. A 76 063807 (2007)
31. S. Guenneau, A. Movchan, G. Petursson and S.A. Ramakrishna, "Acoustic meta-materials for sound focussing and confinement,", New J. Phys. 9, 399 (2007)
30. S. Guenneau, S.A. Ramakrishna, S. Enoch, S. Chakrabarti, G. Tayeb and B. Gralak, "Cloaking and imaging effects in checker boards of negative (ε, μ) and dielectric photonic checkerboards", Photonics and Nanostructures - Fundamentals and Applications, 5 (2-3), pp.63-72 (2007)
29. S.A. Ramakrishna, S. Guenneau, S. Enoch, G. Tayeb and B. Gralak, "Confining light with negative refraction", Phys. Rev. A 75, 063830 (2007)
28. S.A. Ramakrishna, 'Comment on "Negative refraction at frequencies in nonmagnetic two-component molecular media"', Phys. Rev. Lett. 98, 059701 (2007)
27. S. Chakrabarti, S.A. Ramakrishna and S. Guenneau, "Finite checkerboards of dissipative negative refractive index", Opt. Express, 14, 12950 (2006)
26. L. Nanda, A. Basu and S.A. Ramakrishna, "Delay times and detector times for optical pulses traversing plasmas and negative refractie media, Phys. Rev. E 74, 036601 (2006)
25. S. Guenneau, A.C. Vutha and S.Anantha Ramakrishna, " Negative refractive in checkerboards related by mirror-antisymmetry and 3-D corner reflectors", New Journal of Physics, 7, 164 (2005).
24. S.A. Ramakrishna and Oliver J.F. Martin, "Choice of the wave-vector in negative refractive media: The sign of √Z" Opt. Lett. 30, 2626 (2005).
23. S.Anantha Ramakrishna, " Physics of Negative Refractive Index Materials", Reports on Progress in Physics, 68, pp.449-521 (2005). --- Review article
22. S. O'Brien, D. McPeake, S. Anantha Ramakrishna and J.B. Pendry, " Near-infra-red photonic bandgaps and non-linear effects in negative magnetic materials" Phys. Rev. B 69 241101(R) (2004).
21. S.A. Ramakrishna and J.B. Pendry, " Spherical Perfect Lens: Solutions to Maxwells equations in spherical geometry", Phys. Rev. B 69, 115115 (2004), cond-mat/0311203
    


Papers published prior to 2004
20. J.B. Pendry and S.A. Ramakrishna, " Refining the perfect lens", Physica B (Condensed Matter) 338, 329-339 (2003)
    
19. J.B. Pendry and S. Anantha Ramakrishna, "Focussing light with negative refractive index", J. Phys.: Condens. Matter 15 6345 (2003). cond-mat/0310327
    
18. S. Anantha Ramakrishna, "Understanding the dual symmetry between absorbing and amplifying random media" Pramana J. Phys. 62 1273 (2004) PS file
17. S. Anantha Ramakrishna and  J.B. Pendry, "Optical gain removes absorption and improves resolution in a near-field lens", Phys. Rev. B (Rapid comm.) 67 201101(R) (2003)  cond-mat/0206566.
16. S. Anantha Ramakrishna, J.B. Pendry, M.C.K. Wiltshire and W.J. Stewart, "Imaging the near-field", J. Mod. Optics, 50, 1419-1430 (2003) cond-mat/0207026.
15. S. Anantha Ramakrishna and A.D. Armour, "Propagating and evanescent waves in absorbing media",  Am. J. Phys. 71, 562 (2003) cond-mat/0206110.
14. D.R. Smith, D. Schurig, M. Rosenbluth, S. Schultz,  S. Anantha Ramakrishna and J.B. Pendry, "Limitations on Sub-Diffraction Imaging with a Negative Refractive Index Slab",  Appl. Phys. Lett. 82, 1506 (2003) cond-mat/0206568.
13. S. Anantha Ramakrishna and N. Kumar,  "Correcting the quantum clock: conditional sojourn times",  Europhys. Lett. 60, 491-497 (2002) cond-mat/0009269
12. J.B. Pendry and S. Anantha Ramakrishna, "Near field lenses in two dimensions" J. Phys.: Condens. Matter  14, 8463-8479 (2002) cond-mat/0206567.
11. S. Anantha Ramakrishna and N. Kumar,  "Diffusion at constant speed in a model phase space",  Int. J. Mod. Phys. B 16, 3715-3723 (2002) cond-mat/0006483
10. S. Anantha Ramakrishna, J.B. Pendry, D.R. Smith, D. Schurig and S. Schultz, "The asymmetric lossy near-perfect lens", J. Mod. Optics, 49, 1747-1762 (2002) cond-mat/0206564.
9. S. Anantha Ramakrishna and A.M. Jayannavar, "The conditional tunneling time  for reflection using the WKB wave function",  Int. J. Mod. Phys. B 16, 615-619 (2002) cond-mat/0203186.
8. S. Anantha Ramakrishna and N. Kumar,  "Distribution of the delay time and the dwell time for wave reflection from a long random potential", Euro. Phys. J. B 23, 509-513 (2001)  cond-mat/0106195.
7. K. Divakara Rao, S. Anantha Ramakrishna and P.K. Gupta,  "Non-linear optical studies on tetra-phenyl porphyrin doped boric acid glass using picosecond pulses" Appl. Phys. B. 72, 215-219 (2001).
6. V. Gopal, S. Anantha Ramakrishna, A.K. Sood and N. Kumar,  "Photon propagation in thin disordered slabs"  Pramana J. Phys. 56, 767 (2001) (cond-mat/9903016).
5. S. Anantha Ramakrishna, E. Krishna Das, G.V. Vijayagovindan and N. Kumar,  "Reflection of light from a random amplifying medium with disorder in the complex refractive index : Statistics of fluctuations", Phys. Rev. B 62,  256 (2000) (cond-mat/9908303).
4. S. Anantha Ramakrishna and N. Kumar,  "Imaginary potential as a counter of delay time for wave reflection from a one-dimensional random potential",  Phys. Rev.  B 61, 3163 (2000) .  (cond-mat/9906098).
3. S. Anantha Ramakrishna and K. Divakara Rao, "Estimation of light transport parameters in biological media using coherent backscattering ",  Pramana J. Phys. 54, p. 255 ( 2000). (physics/9904065).
2. S. Anantha Ramakrishna and N. Kumar,  "Diffusion of particles moving with constant speed", Phys. Rev. E 60,  p. 1381 (1999). (cond-mat/9903020).
1. S. Anantha Ramakrishna, A. Bandhopadhyay and Jagdish Rai,  "A dissipative quantum mechanical beam splitter", Opt. Exp. 2,  p.29 (1998).