P. S. Ramanujam

5.3k total citations
133 papers, 4.6k citations indexed

About

P. S. Ramanujam is a scholar working on Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, P. S. Ramanujam has authored 133 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Electronic, Optical and Magnetic Materials, 63 papers in Atomic and Molecular Physics, and Optics and 52 papers in Materials Chemistry. Recurrent topics in P. S. Ramanujam's work include Liquid Crystal Research Advancements (71 papers), Photochromic and Fluorescence Chemistry (36 papers) and Photorefractive and Nonlinear Optics (23 papers). P. S. Ramanujam is often cited by papers focused on Liquid Crystal Research Advancements (71 papers), Photochromic and Fluorescence Chemistry (36 papers) and Photorefractive and Nonlinear Optics (23 papers). P. S. Ramanujam collaborates with scholars based in Denmark, United States and Germany. P. S. Ramanujam's co-authors include Søren Hvilsted, N. C. R. Holme, L. Nikolova, Rolf H. Berg, F. Andruzzi, S. Hvilsted, Avtar S. Matharu, Per Michael Johansen, Thomas Garm Pedersen and Shehzad Jeeva and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

P. S. Ramanujam

129 papers receiving 4.4k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
P. S. Ramanujam Denmark 34 2.9k 2.1k 1.8k 848 700 133 4.6k
L. M. Blinov Russia 38 4.1k 1.4× 1.6k 0.8× 1.7k 1.0× 1.2k 1.4× 1.0k 1.4× 221 5.8k
Mark G. Kuzyk United States 37 2.8k 1.0× 1.6k 0.8× 1.6k 0.9× 1.3k 1.5× 619 0.9× 217 4.9k
Satyendra Kumar United States 37 3.5k 1.2× 1.5k 0.7× 1.0k 0.6× 533 0.6× 1.5k 2.1× 161 4.7k
Hiroshi Yokoyama Japan 44 4.2k 1.5× 1.8k 0.8× 2.9k 1.6× 1.4k 1.6× 1.4k 2.0× 307 6.9k
R. W. Munn United Kingdom 34 1.4k 0.5× 1.6k 0.7× 1.9k 1.1× 1.1k 1.3× 403 0.6× 204 4.0k
R. M. Bowman United Kingdom 38 1.4k 0.5× 2.9k 1.4× 1.4k 0.8× 1.3k 1.5× 240 0.3× 147 5.0k
Wim H. de Jeu Netherlands 44 4.0k 1.4× 2.3k 1.1× 1.3k 0.7× 769 0.9× 1.9k 2.7× 161 7.0k
R. Pindak United States 38 3.5k 1.2× 1.7k 0.8× 966 0.5× 384 0.5× 1.3k 1.8× 107 4.8k
J. K. Vij Ireland 38 5.0k 1.7× 2.1k 1.0× 1.5k 0.9× 532 0.6× 1.9k 2.7× 336 6.7k
Aldo Brillante Italy 30 1.1k 0.4× 1.1k 0.5× 1.0k 0.6× 1.6k 1.9× 358 0.5× 160 3.4k

Countries citing papers authored by P. S. Ramanujam

Since Specialization
Citations

This map shows the geographic impact of P. S. Ramanujam's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by P. S. Ramanujam with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. S. Ramanujam more than expected).

Fields of papers citing papers by P. S. Ramanujam

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. S. Ramanujam. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by P. S. Ramanujam. The network helps show where P. S. Ramanujam may publish in the future.

Co-authorship network of co-authors of P. S. Ramanujam

This figure shows the co-authorship network connecting the top 25 collaborators of P. S. Ramanujam. A scholar is included among the top collaborators of P. S. Ramanujam based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with P. S. Ramanujam. P. S. Ramanujam is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Matharu, Avtar S., Shehzad Jeeva, & P. S. Ramanujam. (2008). ChemInform Abstract: Liquid Crystals for Holographic Optical Data Storage. ChemInform. 39(8). 1 indexed citations
2.
Lohse, Brian, Rolf H. Berg, Søren Hvilsted, & P. S. Ramanujam. (2006). Cycloaddition in Peptides for High-Capacity Optical Storage. Japanese Journal of Applied Physics. 45(1S). 488–488. 4 indexed citations
3.
Sánchez‐Somolinos, Carlos, R. Alcalá, S. Hvilsted, & P. S. Ramanujam. (2003). Effect of heat and film thickness on a photoinduced phase transition in azobenzene liquid crystalline polyesters. Journal of Applied Physics. 93(8). 4454–4460. 20 indexed citations
4.
Ramanujam, P. S.. (2003). Evanescent polarization holographic recording of sub-200-nm gratings in an azobenzene polyester. Optics Letters. 28(23). 2375–2375. 14 indexed citations
5.
Ramanujam, P. S., Lian Nedelchev, & Avtar S. Matharu. (2003). Polarization holographic and surface-relief gratings at 257 nm in an amorphous azobenzene polyester. Optics Letters. 28(13). 1072–1072. 8 indexed citations
6.
Glückstad, Jesper & P. S. Ramanujam. (2002). Array illuminator based on transverse self-phase modulation in bacteriorhodopsin thin film. 2. 318–319.
7.
Újhelyi, Ferenc, et al.. (2002). <title>Read/write demonstrator of rewritable holographic memory card system</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4342. 566–573.
8.
Han, Mina, Masatoshi Kidowaki, Kunihiro Ichimura, P. S. Ramanujam, & Søren Hvilsted. (2001). Influence of Structures of Polymer Backbones on Cooperative Photoreorientation Behavior of p-Cyanoazobenzene Side Chains. Macromolecules. 34(12). 4256–4262. 17 indexed citations
9.
Pedersén, Marianne, Søren Hvilsted, N. C. R. Holme, & P. S. Ramanujam. (1999). Influence of the substituent on azobenzene side‐chain polyester optical storage materials. Macromolecular Symposia. 137(1). 115–127. 11 indexed citations
10.
Andruzzi, Luisa, Angelina Altomare, Francesco Ciardelli, et al.. (1999). Holographic Gratings in Azobenzene Side-Chain Polymethacrylates. Macromolecules. 32(2). 448–454. 136 indexed citations
11.
Pedersen, Thomas Garm, Per Michael Johansen, N. C. R. Holme, P. S. Ramanujam, & Søren Hvilsted. (1998). Theoretical model of photoinduced anisotropy in liquid-crystalline azobenzene side-chain polyesters. Journal of the Optical Society of America B. 15(3). 1120–1120. 54 indexed citations
12.
Berg, Rolf H., P. S. Ramanujam, S. Hvilsted, & Palle Rasmussen. (1997). Optical data storage using peptides. 1 indexed citations
13.
Holme, N. C. R., L. Nikolova, P. S. Ramanujam, & Søren Hvilsted. (1997). An analysis of the anisotropic and topographic gratings in a side-chain liquid crystalline azobenzene polyester. Applied Physics Letters. 70(12). 1518–1520. 124 indexed citations
14.
Ramanujam, P. S., N. C. R. Holme, & Søren Hvilsted. (1996). Atomic force and optical near-field microscopic investigations of polarization holographic gratings in a liquid crystalline azobenzene side-chain polyester. Applied Physics Letters. 68(10). 1329–1331. 162 indexed citations
15.
Zebger, Ingo, Heinz W. Siesler, F. Andruzzi, et al.. (1995). The influence of substituents on the orientational behaviour of novel azobenzene side‐chain polyesters. Macromolecular Symposia. 94(1). 159–170. 6 indexed citations
16.
Geisler, T., P. L. Christiansen, Jesper Mørk, & P. S. Ramanujam. (1990). Split-step spectral method for nonlinear schrödinger equation with constant background intensities. Journal of Computational Physics. 86(2). 492–495. 3 indexed citations
17.
Grønbech‐Jensen, Niels, P. S. Ramanujam, & P. L. Christiansen. (1989). Phase properties of squeezed states. Journal of the Optical Society of America B. 6(12). 2423–2423. 42 indexed citations
18.
Ramanujam, P. S., et al.. (1988). Experimental Verification of the Lateral Periodicity of Axially Periodic Incoherent Fields Using the Lau Effect. Journal of Modern Optics. 35(7). 1263–1267. 1 indexed citations
19.
Poulsen, O., et al.. (1983). Resonant three-level saturation spectroscopy in a fast, accelerated atom beam. Physical review. A, General physics. 27(2). 913–918. 2 indexed citations
20.
Tellgren, R., P. S. Ramanujam, & R. Liminga. (1973). Hydrogen bond studies 78. A neutron diffraction study of lithium formate monohydrate, LiHCOO·H2O. Ferroelectrics. 6(1). 191–196. 23 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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