| Oxidation states of Fe and Ti in blue sapphire P Wongrawang, N Monarumit, N Thammajak, P Wathanakul, ... Materials Research Express 3 (2), 026201, 2016 | 36 | 2016 |
| Role of Ti Content on the Occurrence of the 3309-cm–1 Peak in FTIR Absorption Spectra of Ruby Samples A Phlayrahan, N Monarumit, S Satitkune, P Wathanakul Journal of Applied Spectroscopy 85, 385-390, 2018 | 16 | 2018 |
| Identification of high-luster and lusterless freshwater-cultured pearls by X-ray absorption spectroscopy N Monarumit, N Noirawee, A Phlayrahan, K Promdee, K Won-In, ... Journal of Applied Spectroscopy 82, 677-680, 2015 | 11 | 2015 |
| Spectroscopic investigation of properties of blue sapphire samples depending on heating conditions A Phlayrahan, N Monarumit, T Lhuaamporn, S Satitkune, P Wathanakul Journal of Applied Spectroscopy 86, 810-816, 2019 | 10 | 2019 |
| Effect of beryllium heat treatment in synthetic ruby N Monarumit, T Lhuaamporn, S Satitkune, W Wongkokua Journal of Applied Spectroscopy 86, 486-492, 2019 | 10 | 2019 |
| The color center of beryllium-treated yellow sapphires N Monarumit, T Lhuaamporn, S Sakkaravej, P Wathanakul, ... Journal of Physics Communications 4 (10), 105018, 2020 | 9 | 2020 |
| Fe2+ and Fe3+ Oxidation States on Natural Sapphires Probed by X-ray Absorption Spectroscopy N Monarumit, W Wongkokua, S Satitkune Procedia Computer Science 86, 180-183, 2016 | 9 | 2016 |
| Role of ilmenite micro-inclusion on Fe oxidation states of natural sapphires N Monarumit, S Satitkune, W Wongkokua Journal of Physics: Conference Series 901 (1), 012074, 2017 | 7 | 2017 |
| Oxidation state of Ti atoms and Ti-O bond length on natural sapphire gem-materials probed by X-ray absorption spectroscopy N Monarumit, W Wongkokua, S Satitkune Key Engineering Materials 737, 585-589, 2017 | 6 | 2017 |
| Combination of FTIR and SEM for identifying freshwater-cultured pearls from different quality S Satitkune, N Monarumit, C Boonmee, A Phlayrahan, K Promdee, ... Optics and Spectroscopy 120, 500-504, 2016 | 6 | 2016 |
| The acceptor-donor pair recombination of beryllium-treated sapphires N Monarumit, T Lhuaamporn, P Wathanakul, C Saiyasombat, ... Radiation Physics and Chemistry 206, 110756, 2023 | 5 | 2023 |
| Fe oxidation state in heat-treated basaltic blue sapphire samples and its implication to the 3309 cm-1-series peaks in infrared absorption spectra A Phlayrahan, N Monarumit, C Boonmee, S Satitkune, P Wathanakul Journal of Physics: Conference Series 1144 (1), 012057, 2018 | 5 | 2018 |
| Spectroscopic properties for identifying sapphire samples from Ban Bo Kaew, Phrae Province, Thailand J Mogmued, N Monarumit, K Won-In, S Satitkune Journal of Physics: Conference Series 901 (1), 012075, 2017 | 5 | 2017 |
| Structural analysis of freshwater-cultured pearls with different lusters using the extended X-ray absorption fine structure technique N Monarumit, N Noirawee, A Phlayrahan, K Promdee, K Won-In, ... Journal of Applied Spectroscopy 83, 298-301, 2016 | 4 | 2016 |
| Luster measurement of pearl by UV-Vis reflectance spectroscopy C Salyacheewin, N Monarumit, W Wongkokua Journal of Physics: Conference Series 2145 (1), 012063, 2021 | 3 | 2021 |
| Causes of color in purple-and yellow-quartz N Monarumit, S Sakkaravej, B Wanthanachaisaeng, C Saiyasombat, ... Journal of Physics: Conference Series 1719 (1), 012001, 2021 | 3 | 2021 |
| A contribution to indicating the low temperature heat treatment of ruby samples from Myanmar and Vietnam P Wathanakul, N Monarumit, T Leelawatanasuk, S Ingavanija, ... 7th European Conference on Mineralogy and Spectroscopy (ECMS 2011), 2011 | 3 | 2011 |
| Color measurement of yellow sapphire by UV-Vis reflectance spectroscopy N Tipkanon, N Monarumit, T Lhuaamporn, W Wongkokua Journal of Physics: Conference Series 2145 (1), 012062, 2021 | 2 | 2021 |
| Surface study of irradiated sapphires from Phrae Province, Thailand using AFM N Monarumit, P Jivanantaka, J Mogmued, T Lhuaamporn, S Satitkune Journal of Physics: Conference Series 901 (1), 012156, 2017 | 2 | 2017 |
| The blue color mechanism on sapphires from different gem deposits before and after heating under oxidizing atmosphere W Thengthong, S Sakkaravej, W Wongkokua, C Saiyasombat, ... Journal of Physics Communications 7 (12), 125003, 2024 | 1 | 2024 |
