{"id":196,"date":"2015-05-13T08:53:42","date_gmt":"2015-05-13T16:53:42","guid":{"rendered":"http:\/\/www.ece.ucdavis.edu\/hsics\/?page_id=196"},"modified":"2015-05-13T08:53:42","modified_gmt":"2015-05-13T16:53:42","slug":"spectrometer-on-a-chip-2","status":"publish","type":"page","link":"https:\/\/www.ece.ucdavis.edu\/hsics\/spectrometer-on-a-chip-2\/","title":{"rendered":"Spectrometer on a chip"},"content":{"rendered":"

Background<\/strong><\/p>\n

Multiple science objectives outlined in the planetary science decadal survey involve the\u00a0detection of small molecular tracers and determination of their abundance and origin. A highly sensitive gas analyzer has capabilities for a multitude of mission profiles in which\u00a0measurements of the composition and origin of material are desired. For\u00a0detection in the gas phase the rotational spectrum of a polar molecule typically provides a\u00a0strong interaction with (millimeter and sub-millimeter) radiation, which has been exploited for\u00a0remote sensing for half a century. In-situ instruments are now being developed, but\u00a0have lagged behind remote sensors due to the large equipment traditionally required for\u00a0generation and detection of this radiation.<\/p>\n

Our Approach<\/strong><\/p>\n

To advance the technology, we are collaborating with JPL to\u00a0develop a highly compact and sensitive in-situ gas detection\u00a0system, Spectrometer on a chip, to meet planetary science decadal survey objectives. The spectrometer on a chip will enhance NASAs portfolio of in-situ technologies by providing\u00a0a means for point detection of volatiles and for analysis of their isotopic content. The\u00a0microwave, millimeter and sub-millimeter spectra of molecules are highly specific and provide\u00a0unambiguous detection when the gas is measured at low pressures. The instrument will have\u00a0enough bandwidth to encompass multiple targeted detection and will also be useful for\u00a0discovery detection.\u00a0We are developing a gas spectrometer capable of compact low-power operations in a near\u00a0vacuum environment with CMOS based mm-wave transmitter and receiver enclosed, as shown in the Figure.\u00a0In effect, all in-situ\u00a0missions, i.e. explorers, probes and sample returns can be enhanced with this technique.<\/p>\n

\"Spectrometer-on-a-chip\"<\/a><\/p>\n

Publication<\/strong><\/p>\n

    \n
  1. B. Yu, X. Ding, H. Yu, Y. Ye, X. Liu, and Q. J. Gu, \u201cRing Resonator based Sub-THz Dielectric Sensor,\u201d IEEE MWCL September 2018<\/li>\n
  2. R. Shu, J. Li, A. Tang, B. J. Drouin, Q. J. Gu, \u201cCoupling Inductor based Hybrid mm-Wave CMOS SPST Switch,\u201d IEEE Trans. on Circuits and Systems II, April 2017<\/li>\n
  3. B. J. Drouin, A. Tang, E. Schlecht, E. Brageot, Q. Jane Gu, Y. Ye, R. Shu, M.-C. F. Chang, Y. Kim, \u201cA CMOS millimeter-wave transceiver embedded in a semi-confocal Fabry-Perot Cavity for molecular spectroscopy,\u201d Journal of Chemical Physics, vol 145, no.7, August 2016<\/li>\n
  4. R. Shu, A. Tang, B. Drouin, Q. J. Gu, \u201cA 54-84 GHz CMOS SPST Switch with 35 dB Isolation,\u201d 2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC<\/em>)<\/em><\/li>\n
  5. B. J. Drouin, A. Tang, E. Schlecht, A. Daly, E. Brageot, Q. J. Gu, Y. Ye, R. Shu, F. Chang, R. Kim, \u201cImplementation of CMOS Millimeter-wave Devices for Rotational Spectroscopy,\u201d Accepted by International Symposium on Molecular Spectroscopy<\/em>, June 22-26, 2015<\/li>\n<\/ol>\n

    Media Report:<\/b><\/span><\/p>\n

    http:\/\/engineering.ucdavis.edu\/blog\/q-jane-gu-named-co-pi-nasajpl-project\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Background<\/strong><\/p>\n

    Multiple science objectives outlined in the planetary science decadal survey involve the\u00a0detection of small molecular tracers and determination of their abundance and origin. A highly sensitive gas analyzer has capabilities for a multitude of mission profiles in which\u00a0measurements of the composition and origin of material are desired. For\u00a0detection in \u2026 Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":13,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-196","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/pages\/196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/comments?post=196"}],"version-history":[{"count":0,"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/pages\/196\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ece.ucdavis.edu\/hsics\/wp-json\/wp\/v2\/media?parent=196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}