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Narasimhan, P. T. ; Jacobs, Russell E. (2005) Microscopy in magnetic resonance imaging Annual Reports on NMR Spectroscopy, 55 . pp. 259-297. ISSN 0066-4103

Ahrens, E. T. ; Narasimhan, P. T. ; Nakada, T. ; Jacobs, R. E. (2002) Small animal neuroimaging using magnetic resonance microscopy Progress in Nuclear Magnetic Resonance Spectroscopy, 40 (4). pp. 275-306. ISSN 0079-6565

Sendhil Velan, S. ; Narasimhan, P. T. ; Jacobs, Russell E. (2001) MR imaging with phase encoding of intermolecular multiple quantum coherences Journal of Magnetic Resonance, 152 (1). pp. 189-194. ISSN 1090-7807

Gadre, S. R. ; Ramaswamy, R. ; Narasimhan, P. T. (1997) Electron momentum distributions and compton profiles of some molecules with FSGO model Pramana - Journal of Physics, 8 (2). pp. 99-107. ISSN 0304-4289

Reddy, N. ; Narasimhan, P. T. (1994) Application of extended-time-excitation technique to NQR spectroscopy. An experimental investigation of Zeeman-perturbed spin-echo-envelope modulation Journal of Magnetic Resonance, Series A, 107 (1). pp. 8-13. ISSN 1064-1858

Ramamoorthy, A. ; Chandrakumar, N. ; Dubey, A. K. ; Narasimhan, P. T. (1993) Analysis of the performance of NQR composite pulses Journal of Magnetic Resonance, Series A, 102 (3). pp. 274-286. ISSN 1064-1858

Mora, Bassem N. ; Narasimhan, P. T. ; Ross, Brian D. (1992) ³¹P magnetization transfer studies in the monkey brain Magnetic Resonance in Medicine, 26 (1). pp. 100-115. ISSN 0740-3194

Mora, B. ; Narasimhan, P. T. ; Ross, B. D. ; Allman, J. ; Barker, P. B. (1991) 31P saturation transfer and phosphocreatine imaging in the monkey brain Proceedings of the National Academy of Sciences of the United States of America, 88 (19). pp. 8372-8376. ISSN 0027-8424

Ramamoorthy, A. ; Narasimhan, P. T. (1991) Phase-alternated composite π/2 pulses for solid state quadrupole echo NMR spectroscopy Pramana - Journal of Physics, 36 (4). pp. 399-406. ISSN 0304-4289

Ross, Brian D. ; Parivar, Farhad ; Kanamori, Keiko ; Farrow, Neil ; Narasimhan, P. T. (1990) NMR: a tool for studying renal function and nephrotoxicity Toxicology Letters, 53 (1-2). pp. 9-12. ISSN 0378-4274

Ross, Brian ; Narasimhan, P. T. ; Tropp, James ; Derby, Kevin S. (1989) Amplification or obfuscation: is localization improving our clinical understanding of phosphorus metabolism? NMR in Biomedicine, 2 (5-6). pp. 340-345. ISSN 0952-3480

Ramamoorthy, A. ; Narasimhan, P. T. (1989) Design of composite pulses for nuclear quadrupole resonance spectroscopy Journal of Molecular Structure, 192 (3-4). pp. 333-344. ISSN 0022-2860

Reddy, Ravinder ; Narasimhan, P. T. (1989) Double quantum coherence in pure nuclear quadrupole resonance spectroscopy Journal of Molecular Structure, 192 (3-4). pp. 309-319. ISSN 0022-2860

Dubey, A. K. ; Narasimhan, P. T. (1989) Multiple pulse response in pure NQR of spin I = 3/2 nuclei in single crystals: response to phase-alternated pulse sequence (PAPS) Journal of Molecular Structure, 192 (3-4). pp. 321-331. ISSN 0022-2860

Reddy, Narsimha ; Narasimhan, P. T. (1989) Multiple-pulse investigations in pure NQR spectroscopy: influence of spin-locking and phase alternated pulse sequence (PAPS) on polycrystalline samples containing ³⁵Cl((I=3/2) nuclei Journal of Molecular Structure, 192 (3-4). pp. 345-354. ISSN 0022-2860

Shankar, S. ; Narasimhan, P. T. (1984) Linear coupled-cluster method. I. Exchange-correlation effects in atoms Physical Review A, 29 (1). pp. 52-57. ISSN 1050-2947

Shankar, S. ; Narasimhan, P. T. (1984) Linear coupled-cluster method. II. Analysis of local exchange-correlation potentials in beryllium and its isoelectronic series Physical Review A, 29 (1). pp. 58-63. ISSN 1050-2947

Ramachandran, Raghavan ; Narasimhan, P. T. (1983) Pulsed double resonance in the pure quadrupole regime: off-resonant DRRF technique for detection of rare quadrupolar nuclei Journal of Molecular Structure, 111 (1-2). pp. 53-60. ISSN 0022-2860

Ramachandran, R. ; Narasimhan, P. T. (1983) A coherent nuclear quadrupole pulse and double resonance spectrometer Journal of Physics E: Scientific Instruments, 16 (7). pp. 643-648. ISSN 0022-3735

Ramachandran, R. ; Narasimhan, P. T. (1983) Pulsed nuclear quadrupole double-resonance scheme for the detection of rare quadrupolar nuclei Journal of Magnetic Resonance (1969), 51 (1). pp. 67-72. ISSN 0022-2364

Chandrakumar, N. ; Narasimhan, P. T. (1982) ¹H and ¹⁹F dynamic nuclear polarization studies at X-band: ¹⁹F differential enhancements Molecular Physics, 45 (1). pp. 179-187. ISSN 0026-8976

Thankachan, P. P. ; Narasimhan, P. T. (1982) Calculation of electric field gradients in some linear molecules using semi-empirical scfmo formalisms Journal of Molecular Structure, 83 (1-2). pp. 289-298. ISSN 0022-2860

Harihara Subramanian, V. ; Narasimhan, P. T. (1982) Magnetic dipole interaction and line widths in NQR: ³⁵Cl NQR spectrum of chloroform Journal of Molecular Structure, 83 (1-2). pp. 117-125. ISSN 0022-2860

Subramanian, V. H. ; Narasimhan, P. T. ; Srivatsan, K. R. (1981) An injection and phase-locked super-regenerative NQR spectrometer Journal of Physics E: Scientific Instruments, 14 (7). pp. 870-873. ISSN 0022-3735

Chandrakumar, N. ; Narasimhan, P. T. (1981) Field-frequency locked X-band Overhauser effect spectrometer Review of Scientific Instruments, 52 (4). pp. 533-538. ISSN 0034-6748

Harihara Subramanian, V. ; Narasimhan, P. T. (1980) ³⁵Cl powder zeeman NQR studies using an injection- and phase-locked NQR spectrometer Journal of Molecular Structure, 58 . pp. 193-203. ISSN 0022-2860

Sen, K. D. ; Narasimhan, P. T. (1978) Nuclear hexadecapole antishielding factors: tripositive lanthanide and tetrapositive actinide ions Physical Review A, 18 (6). pp. 2450-2452. ISSN 1050-2947

Sen, K. D. ; Narasimhan, P. T. (1978) Sternheimer shielding factors for atomic quadrupole moments: np(n+1)s configuration of C, Si, Ge, Sn, and Pb Physical Review A, 18 (1). pp. 26-28. ISSN 1050-2947

Sen, K. D. ; Narasimhan, P. T. (1977) Sternheimer antishielding factors for core electrons in metals: comparison with free-ion results Physical Review A, 16 (5). pp. 1786-1788. ISSN 1050-2947

Gadre, S. R. ; Narasimhan, P. T. (1977) Single- and double-gaussian FSGO model and compton profiles Chemical Physics Letters, 50 (2). pp. 247-250. ISSN 0009-2614

Sen, K. D. ; Narasimhan, P. T. (1977) Sternheimer valence shielding and antishielding factors for some ions of interest in Mossbauer spectroscopy Physical Review B, 16 (1). pp. 107-114. ISSN 0163-1829

Gadre, S. R. ; Narasimhan, P. T. (1977) Electron momentum distributions from valence-bond wave functions International Journal of Quantum Chemistry, 12 (1). pp. 105-113. ISSN 0020-7608

Nanda, D. N. ; Narasimhan, P. T. (1977) On invariance requirements in approximate SCF MO Theory International Journal of Quantum Chemistry, 12 (1). pp. 215-223. ISSN 0020-7608

Sen, K. D. ; Narasimhan, P. T. (1977) Quadrupole antishielding factors and polarizabilities in ionic crystals Physical Review B, 15 (1). pp. 95-102. ISSN 0163-1829

Sen, K. D. ; Narasimhan, P. T. (1976) Quadrupole antishielding factors for actinide ions Physical Review A, 14 (2). pp. 880-881. ISSN 1050-2947

Sen, K. D. ; Narasimhan, P. T. (1976) Quadrupole antishielding factors for some 3d⁵, 4d⁵, and 5d⁵ ions Physical Review A, 14 (2). pp. 539-542. ISSN 1050-2947

Gadre, Shridhar R. ; Narasimhan, P. T. (1976) Calculation of atomic and molecular energies from experimental Compton profiles Molecular Physics, 31 (5). pp. 1613-1615. ISSN 0026-8976

Sen, K. D. ; Narasimhan, P. T. (1975) Nuclear hexadecapole antishielding factors Physical Review A, 11 (4). pp. 1162-1167. ISSN 1050-2947

Nanda, D. N. ; Narasimhan, P. T. (1974) Approximate valence-shell electron unrestricted Hartree-Fock calculations with orthogonalized atomic orbitals: proton hyperfine splittings in benzyl and related radicals International Journal of Quantum Chemistry, 8 (3). pp. 451-465. ISSN 0020-7608

Nanda, D. N. ; Narasimhan, P. T. (1974) Unrestricted Hartree-Fock spin density calculations with orthogonalized atomic orbitals on aza and nitroaromatic radical anions Theoretical Chemistry Accounts, 32 (4). pp. 321-330. ISSN 1432-881X

Nanda, D. N. ; Narasimhan, P. T. (1972) Unrestricted Hartree-Fock calculations of spin densities with orthogonalized atomic orbitals: proton and ¹³C hyperfine splittings in some pi hydrocarbon radicals International Journal of Quantum Chemistry, 6 (5). pp. 819-841. ISSN 0020-7608

Gopinathan, M. S. ; Narasimhan, P. T. (1972) Oriented PMR spectra of acetone and DMSO and molecular orbital studies of ⁴J_HH Journal of Magnetic Resonance (1969), 6 (2). pp. 147-158. ISSN 0022-2364

Gopinathan, M. S. ; Narasimhan, P. T. (1971) Calculations of ¹H-¹⁹F nuclear spin couplings by the finite perturbation method Molecular Physics, 22 (3). pp. 543-545. ISSN 0026-8976

Gopinathan, M. S. ; Narasimhan, P. T. (1971) Effect of lone-pair orientation on nuclear spin couplings Molecular Physics, 22 (3). pp. 473-481. ISSN 0026-8976

Gopinathan, M. S. ; Narasimhan, P. T. (1971) Finite perturbation approach to nuclear spin couplings in three-membered ring systems Molecular Physics, 21 (5). pp. 943-947. ISSN 0026-8976

Gopinathan, M. S. ; Narasimhan, P. T. (1971) Finite perturbation molecular orbital approach to the dihedral angle dependence of vicinal H-H and H-F couplings Molecular Physics, 21 (6). pp. 1141-1144. ISSN 0026-8976

Nanda, D. N. ; Subramanian, J. ; Narasimhan, P. T. (1971) Unrestricted Hartree-Fock spin density distributions in nitro aromatic radical anions Theoretical Chemistry Accounts, 22 (4). pp. 369-377. ISSN 1432-881X

Saxena, K. M. S. ; Narasimhan, P. T. (1969) Machine computation of saturation parameters in a multilevel zeeman system Journal of the Franklin Institute, 287 (6). pp. 483-514. ISSN 0016-0032

Raghavan, E. ; Narasimhan, P. T. (1969) Molecular orbital calculations on the reactivity of o-benzoquinones towards dienes Tetrahedron, 25 (18). pp. 4643-4646. ISSN 0040-4020

Gupta, R. K. ; Subramanian, J. ; Ray, N. K. ; Narasimhan, P. T. (1968) Study of lithium cation perturbation on the spin density distribution in sym-trinitrobenzene radical anion Chemical Physics Letters, 2 (3). pp. 150-154. ISSN 0009-2614

Ray, N. K. ; Narasimhan, P. T. (1968) Unrestricted Hartree-Fock calculations of spin density distributions in some alkyl radicals using the hetero-atom model for the methyl group Chemical Physics Letters, 2 (2). pp. 101-104. ISSN 0009-2614

Narasimhan, P. T. ; Ray, N. K. (1968) Study of the shape of 1,4-dioxadiene and 1,4-dithiadiene molecules by extended Huckel theory Journal of Molecular Structure, 1 (6). pp. 489-490. ISSN 0022-2860

Ray, N. K. ; Narasimhan, P. T. (1968) Unrestricted Hartree-Fock calculations of spin density distributions in some alkyl radicals Chemical Physics Letters, 2 (1). pp. 59-60. ISSN 0009-2614

Ray, N. K. ; Narasimhan, P. T. (1968) Study of the transition state in the isomerization of trans-N₂F₂ to cis-N₂F₂ by extended Huckel theory Theoretical Chemistry Accounts, 9 (3). pp. 268-274. ISSN 1432-881X

Ray, N. K. ; Narasimhan, P. T. (1968) Unrestricted Hartree-Fuck calculations of spin density distributions in the radical anions of some heterocycles derived from thiophene, furan and pyrrole Theoretical Chemistry Accounts, 11 (2). pp. 156-158. ISSN 1432-881X

Gupta, R. K. ; Dua, S. S. ; Narasimhan, P. T. ; George, M. V. (1967) ESR study of the 4,4'-dimethoxy azobenzene radical anion Chemical Physics Letters, 1 (9). pp. 377-378. ISSN 0009-2614

Ray, N. K. ; Narasimhan, P. T. (1967) Unrestricted hartree-fock calculation of spin distributions in some radical anions exhibiting restricted rotation about a carbon carbon bond Theoretical Chemistry Accounts, 8 (4). pp. 306-311. ISSN 1432-881X

Ray, N. K. ; Narasimhan, P. T. (1966) Molecular orbital study of some heterocycles containing nitrogen and sulphur Theoretical Chemistry Accounts, 5 (5). pp. 401-405. ISSN 1432-881X

Narasimhan, P. T. ; Rogers, Max T. (1960) Proton magnetic resonance spectra of some ethyl compounds Journal of the American Chemical Society, 82 (23). pp. 5983-5986. ISSN 0002-7863

Narasimhan, P. T. ; Rogers, Max T. (1960) High resolution proton magnetic resonance spectrum of mercury diethyl: analysis of an A₃B₂ system Journal of the American Chemical Society, 82 (1). pp. 34-40. ISSN 0002-7863

Narasimhan, P. T. ; Rogers, Max T. (1959) Nuclear magnetic shielding of protons in amides and the magnetic anisotropy of the C-O bond Journal of Physical Chemistry, 63 (9). pp. 1388-1394. ISSN 0022-3654

Narasimhan, P. T. ; Senich, Radomir (1956) Infra-red investigations on the hydrocarbon cyperene-II Proceedings of the Indian Academy of Sciences, Section A, 43 (3). pp. 156-162. ISSN 0370-0089

Narasimhan, P. T. (1955) Temperature dependence of the dielectric constant of diamond Proceedings of the Physical Society. Section B, 68 (5). pp. 315-318. ISSN 0370-1301

Narasimhan, P. T. (1953) Dipole moments of camphor compounds - Part I Proceedings of the Indian Academy of Sciences, Section A, 37 (4). pp. 551-556. ISSN 0370-0089

Narasimhan, P. T. ; Anantakrishnan, S. V. (1953) Dipole moments of camphor compounds. Part II. The dipole moments of d1-borneol, camphoric acid and 3-bromo-camphorenic acid Proceedings of the Indian Academy of Sciences, Section A, 37 (6). pp. 747-751. ISSN 0370-0089